./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-industry-pattern/array_range_init.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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_range_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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 7359ff8b3bf57c317711b0ee6b1a3f7c05656eb593f61c55eec8877bdfa591c4 --- 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 01:23:31,314 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:31,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:31,336 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:31,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:31,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:31,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:31,340 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:31,342 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:31,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:31,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:31,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:31,346 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:31,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:31,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:31,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:31,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:31,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:31,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:31,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:31,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:31,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:31,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:31,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:31,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:31,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:31,368 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:31,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:31,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:31,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:31,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:31,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:31,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:31,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:31,385 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:31,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:31,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:31,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:31,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:31,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:31,388 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:31,391 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 01:23:31,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:31,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:31,433 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:31,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:31,434 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:31,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:31,434 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:31,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:31,435 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:31,435 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:23:31,436 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:31,436 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:31,436 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:23:31,436 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:23:31,437 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:31,437 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:23:31,437 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:23:31,437 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:23:31,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:31,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:23:31,438 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:23:31,438 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:23:31,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:23:31,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:31,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:31,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:31,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:31,440 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:23:31,440 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:23:31,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:31,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:31,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:31,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:31,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:31,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:31,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:31,442 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:23:31,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:31,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:31,442 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:23:31,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:23:31,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:31,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:31,443 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7359ff8b3bf57c317711b0ee6b1a3f7c05656eb593f61c55eec8877bdfa591c4 [2022-11-22 01:23:31,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:31,776 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:31,779 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:31,780 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:31,780 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:31,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-industry-pattern/array_range_init.i [2022-11-22 01:23:34,962 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:35,265 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:35,265 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i [2022-11-22 01:23:35,274 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/2934c133d/a198a5bbfd804c8a8715342e3863f286/FLAGb71b52e3b [2022-11-22 01:23:35,300 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/2934c133d/a198a5bbfd804c8a8715342e3863f286 [2022-11-22 01:23:35,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:35,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:35,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:35,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:35,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:35,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,321 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7009e11f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35, skipping insertion in model container [2022-11-22 01:23:35,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:35,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:35,564 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i[809,822] [2022-11-22 01:23:35,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:35,597 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:23:35,613 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i[809,822] [2022-11-22 01:23:35,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:35,639 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:23:35,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35 WrapperNode [2022-11-22 01:23:35,640 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:35,642 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:35,642 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:23:35,642 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:23:35,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,683 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-11-22 01:23:35,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:35,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:23:35,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:23:35,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:23:35,696 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,697 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,718 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,731 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,733 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,734 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:23:35,736 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:23:35,736 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:23:35,737 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:23:35,738 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (1/1) ... [2022-11-22 01:23:35,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:35,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:35,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:23:35,815 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:23:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:23:35,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:23:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 01:23:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:23:35,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:23:35,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 01:23:35,934 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:23:35,936 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:23:36,133 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:23:36,203 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:23:36,207 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:23:36,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:36 BoogieIcfgContainer [2022-11-22 01:23:36,210 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:23:36,213 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:23:36,213 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:23:36,217 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:23:36,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:35" (1/3) ... [2022-11-22 01:23:36,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5865d505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:36, skipping insertion in model container [2022-11-22 01:23:36,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:35" (2/3) ... [2022-11-22 01:23:36,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5865d505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:36, skipping insertion in model container [2022-11-22 01:23:36,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:36" (3/3) ... [2022-11-22 01:23:36,224 INFO L112 eAbstractionObserver]: Analyzing ICFG array_range_init.i [2022-11-22 01:23:36,247 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:23:36,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:23:36,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:23:36,305 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;@6f78d0a5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:23:36,306 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:23:36,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 01:23:36,319 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:36,319 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 01:23:36,320 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:36,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:36,328 INFO L85 PathProgramCache]: Analyzing trace with hash 88616, now seen corresponding path program 1 times [2022-11-22 01:23:36,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:36,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316620916] [2022-11-22 01:23:36,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:36,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:36,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:36,671 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 01:23:36,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:36,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316620916] [2022-11-22 01:23:36,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316620916] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:36,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:36,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:23:36,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456411851] [2022-11-22 01:23:36,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:36,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:36,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:36,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:36,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:23:36,750 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 11 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:36,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:36,853 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-22 01:23:36,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:36,856 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 01:23:36,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:36,875 INFO L225 Difference]: With dead ends: 28 [2022-11-22 01:23:36,876 INFO L226 Difference]: Without dead ends: 19 [2022-11-22 01:23:36,879 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 01:23:36,883 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:36,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 16 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:23:36,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-22 01:23:36,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2022-11-22 01:23:36,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.5) internal successors, (15), 13 states have internal predecessors, (15), 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 01:23:36,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-22 01:23:36,923 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 3 [2022-11-22 01:23:36,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:36,924 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-22 01:23:36,924 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 01:23:36,925 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-22 01:23:36,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:23:36,926 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:36,926 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 01:23:36,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:23:36,928 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:36,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:36,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1654955942, now seen corresponding path program 1 times [2022-11-22 01:23:36,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:36,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236928830] [2022-11-22 01:23:36,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:36,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:37,064 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 01:23:37,065 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:37,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236928830] [2022-11-22 01:23:37,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236928830] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:37,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:37,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:23:37,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558126823] [2022-11-22 01:23:37,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:37,067 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 01:23:37,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:37,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 01:23:37,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 01:23:37,069 INFO L87 Difference]: Start difference. First operand 14 states and 15 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 01:23:37,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:37,085 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2022-11-22 01:23:37,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 01:23:37,086 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 01:23:37,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:37,087 INFO L225 Difference]: With dead ends: 14 [2022-11-22 01:23:37,087 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 01:23:37,088 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 01:23:37,089 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:37,090 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 8 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:23:37,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 01:23:37,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-22 01:23:37,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:37,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-22 01:23:37,094 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 6 [2022-11-22 01:23:37,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:37,094 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-22 01:23:37,094 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 01:23:37,095 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-22 01:23:37,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 01:23:37,095 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:37,095 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:37,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 01:23:37,096 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:37,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:37,097 INFO L85 PathProgramCache]: Analyzing trace with hash 235971907, now seen corresponding path program 1 times [2022-11-22 01:23:37,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:37,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067408165] [2022-11-22 01:23:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:37,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:37,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:37,215 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 01:23:37,216 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:37,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067408165] [2022-11-22 01:23:37,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067408165] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:23:37,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874445395] [2022-11-22 01:23:37,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:37,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:37,217 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:37,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:37,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 01:23:37,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:37,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:23:37,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:37,389 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 01:23:37,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:37,446 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 01:23:37,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874445395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:37,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1373879729] [2022-11-22 01:23:37,478 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-22 01:23:37,478 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:23:37,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:23:37,487 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:23:37,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:23:37,628 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 22 treesize of output 22 [2022-11-22 01:23:37,673 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 36 treesize of output 32 [2022-11-22 01:23:37,716 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 39 treesize of output 35 [2022-11-22 01:23:37,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:23:37,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 206 [2022-11-22 01:23:37,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:23:37,939 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 227 treesize of output 213 [2022-11-22 01:23:38,091 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 01:23:38,102 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 01:23:38,209 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 01:23:38,216 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 01:23:38,228 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:23:38,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1373879729] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:38,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:23:38,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-11-22 01:23:38,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535488997] [2022-11-22 01:23:38,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:38,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:23:38,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:38,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:23:38,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:23:38,596 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 01:23:38,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:38,814 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2022-11-22 01:23:38,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 01:23:38,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 01:23:38,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:38,815 INFO L225 Difference]: With dead ends: 23 [2022-11-22 01:23:38,815 INFO L226 Difference]: Without dead ends: 20 [2022-11-22 01:23:38,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2022-11-22 01:23:38,817 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:38,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 15 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-22 01:23:38,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2022-11-22 01:23:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-22 01:23:38,822 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 7 [2022-11-22 01:23:38,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:38,823 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-22 01:23:38,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 6 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 01:23:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-22 01:23:38,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 01:23:38,824 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:38,824 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:38,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:39,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:39,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:39,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:39,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1022304198, now seen corresponding path program 1 times [2022-11-22 01:23:39,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:23:39,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884860181] [2022-11-22 01:23:39,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:39,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:23:39,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:39,154 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 01:23:39,154 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 01:23:39,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884860181] [2022-11-22 01:23:39,155 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884860181] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 01:23:39,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199778281] [2022-11-22 01:23:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:39,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:39,155 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:39,158 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:39,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 01:23:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:39,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:23:39,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:39,245 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 01:23:39,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:39,280 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 01:23:39,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199778281] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:39,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [699487582] [2022-11-22 01:23:39,283 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-22 01:23:39,283 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 01:23:39,284 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 01:23:39,284 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 01:23:39,284 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 01:23:39,299 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 22 treesize of output 22 [2022-11-22 01:23:39,319 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 36 treesize of output 32 [2022-11-22 01:23:39,348 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 44 treesize of output 40 [2022-11-22 01:23:39,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:23:39,487 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 213 treesize of output 219 [2022-11-22 01:23:39,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 01:23:39,551 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 253 treesize of output 231 [2022-11-22 01:23:39,663 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 01:23:39,671 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 01:23:39,847 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 01:23:39,856 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 01:23:39,865 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 01:23:40,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [699487582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:40,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 01:23:40,346 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4, 4, 4] total 14 [2022-11-22 01:23:40,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56672643] [2022-11-22 01:23:40,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:40,347 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-22 01:23:40,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 01:23:40,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-22 01:23:40,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-11-22 01:23:40,348 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:40,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:40,518 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2022-11-22 01:23:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-22 01:23:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-22 01:23:40,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:40,519 INFO L225 Difference]: With dead ends: 13 [2022-11-22 01:23:40,519 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:23:40,519 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-11-22 01:23:40,520 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 7 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:40,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 0 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:40,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:23:40,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:23:40,522 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 01:23:40,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:23:40,522 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-11-22 01:23:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:40,522 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:23:40,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 1.5) internal successors, (9), 6 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:40,523 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:23:40,523 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:23:40,525 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:23:40,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:23:40,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:23:40,526 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:23:40,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:40,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:40,729 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:23:40,967 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:23:40,967 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-22 01:23:40,968 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (and (<= 0 |#NULL.base|) (<= 3 |~#a~0.base|) (<= |~#a~0.offset| 0) (<= 0 |~#a~0.offset|) (<= |#NULL.offset| 0) (<= |~#a~0.base| 3) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) [2022-11-22 01:23:40,969 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:23:40,969 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2022-11-22 01:23:40,969 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed. [2022-11-22 01:23:40,969 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 24) the Hoare annotation is: (and (<= 0 |#NULL.base|) (<= 3 |~#a~0.base|) (<= |~#a~0.offset| 0) (or (<= 1 |ULTIMATE.start_main_~i~0#1|) (let ((.cse0 (select |#memory_int| 1))) (and (= ((as const (Array Int Int)) 0) (select |#memory_int| |~#a~0.base|)) (= 400000 (select |#length| 3)) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| 1) 1) (= 19 (select |#length| 2)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|)))) (<= 0 |~#a~0.offset|) (<= |#NULL.offset| 0) (<= |~#a~0.base| 3) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|)) [2022-11-22 01:23:40,973 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-22 01:23:40,975 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:23:40,983 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:173) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:137) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:401) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:455) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:191) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-22 01:23:40,989 INFO L158 Benchmark]: Toolchain (without parser) took 5679.83ms. Allocated memory was 176.2MB in the beginning and 247.5MB in the end (delta: 71.3MB). Free memory was 146.7MB in the beginning and 191.3MB in the end (delta: -44.6MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-22 01:23:40,989 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:40,990 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.20ms. Allocated memory is still 176.2MB. Free memory was 146.7MB in the beginning and 136.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:23:40,990 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.81ms. Allocated memory is still 176.2MB. Free memory was 136.2MB in the beginning and 134.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:40,990 INFO L158 Benchmark]: Boogie Preprocessor took 51.10ms. Allocated memory is still 176.2MB. Free memory was 134.9MB in the beginning and 133.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:40,991 INFO L158 Benchmark]: RCFGBuilder took 474.60ms. Allocated memory is still 176.2MB. Free memory was 133.4MB in the beginning and 120.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:23:40,991 INFO L158 Benchmark]: TraceAbstraction took 4775.24ms. Allocated memory was 176.2MB in the beginning and 247.5MB in the end (delta: 71.3MB). Free memory was 120.2MB in the beginning and 191.3MB in the end (delta: -71.2MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2022-11-22 01:23:40,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 113.2MB. Free memory is still 67.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.20ms. Allocated memory is still 176.2MB. Free memory was 146.7MB in the beginning and 136.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.81ms. Allocated memory is still 176.2MB. Free memory was 136.2MB in the beginning and 134.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 51.10ms. Allocated memory is still 176.2MB. Free memory was 134.9MB in the beginning and 133.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 474.60ms. Allocated memory is still 176.2MB. Free memory was 133.4MB in the beginning and 120.9MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 4775.24ms. Allocated memory was 176.2MB in the beginning and 247.5MB in the end (delta: 71.3MB). Free memory was 120.2MB in the beginning and 191.3MB in the end (delta: -71.2MB). Peak memory consumption was 3.3MB. 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 114 IncrementalHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 14 mSDtfsCounter, 114 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=1, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 125 HoareAnnotationTreeSize, 2 FomulaSimplifications, 102 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 158 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 106 SizeOfPredicates, 2 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 8/14 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: 1.3s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 14, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 44, TOOLS_POST_TIME: 1.1s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 44, TOOLS_QUANTIFIERELIM_TIME: 1.1s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 82, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 6, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 9, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 14, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 0.9s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.9s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 9, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 156, DAG_COMPRESSION_RETAINED_NODES: 55, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:265) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-22 01:23:41,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-industry-pattern/array_range_init.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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 7359ff8b3bf57c317711b0ee6b1a3f7c05656eb593f61c55eec8877bdfa591c4 --- 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 01:23:43,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:23:43,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:23:43,657 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:23:43,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:23:43,662 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:23:43,665 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:23:43,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:23:43,671 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:23:43,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:23:43,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:23:43,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:23:43,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:23:43,681 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:23:43,682 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:23:43,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:23:43,684 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:23:43,685 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:23:43,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:23:43,689 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:23:43,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:23:43,692 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:23:43,694 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:23:43,695 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:23:43,703 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:23:43,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:23:43,704 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:23:43,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:23:43,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:23:43,707 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:23:43,707 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:23:43,708 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:23:43,709 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:23:43,710 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:23:43,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:23:43,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:23:43,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:23:43,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:23:43,713 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:23:43,714 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:23:43,715 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:23:43,720 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Bitvector.epf [2022-11-22 01:23:43,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:23:43,767 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:23:43,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:23:43,769 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:23:43,770 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:23:43,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:23:43,771 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:23:43,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:23:43,771 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:23:43,772 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:23:43,773 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:23:43,773 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:23:43,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:23:43,774 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:23:43,774 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 01:23:43,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:23:43,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:23:43,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:23:43,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:23:43,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:23:43,776 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:23:43,776 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:23:43,776 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 01:23:43,777 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:23:43,777 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:23:43,777 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:23:43,777 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:23:43,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:23:43,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:23:43,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:23:43,778 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:23:43,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:43,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:23:43,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:23:43,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:23:43,780 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:23:43,780 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:43,780 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:23:43,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:23:43,781 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:23:43,781 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7359ff8b3bf57c317711b0ee6b1a3f7c05656eb593f61c55eec8877bdfa591c4 [2022-11-22 01:23:44,206 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:23:44,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:23:44,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:23:44,241 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:23:44,241 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:23:44,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-industry-pattern/array_range_init.i [2022-11-22 01:23:47,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:23:48,064 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:23:48,065 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i [2022-11-22 01:23:48,074 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/b08815425/f68c61bc092a471698fecc60ef17369c/FLAG6d30d3761 [2022-11-22 01:23:48,099 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/data/b08815425/f68c61bc092a471698fecc60ef17369c [2022-11-22 01:23:48,103 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:23:48,105 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:23:48,106 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:48,107 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:23:48,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:23:48,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,113 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e03ce0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48, skipping insertion in model container [2022-11-22 01:23:48,113 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,121 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:23:48,137 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:23:48,298 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i[809,822] [2022-11-22 01:23:48,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:48,328 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:23:48,342 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_f3a414fd-a5a9-4589-8115-74c3e8f740f0/sv-benchmarks/c/array-industry-pattern/array_range_init.i[809,822] [2022-11-22 01:23:48,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:23:48,361 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:23:48,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48 WrapperNode [2022-11-22 01:23:48,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:23:48,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:48,364 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:23:48,364 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:23:48,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,403 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 46 [2022-11-22 01:23:48,404 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:23:48,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:23:48,405 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:23:48,405 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:23:48,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,413 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,415 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,415 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,421 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,426 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,427 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:23:48,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:23:48,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:23:48,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:23:48,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (1/1) ... [2022-11-22 01:23:48,439 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:23:48,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:48,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:23:48,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:23:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:23:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:23:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-22 01:23:48,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:23:48,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:23:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-22 01:23:48,577 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:23:48,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:23:48,726 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:23:48,732 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:23:48,732 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-22 01:23:48,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:48 BoogieIcfgContainer [2022-11-22 01:23:48,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:23:48,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:23:48,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:23:48,740 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:23:48,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:23:48" (1/3) ... [2022-11-22 01:23:48,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270e2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:48, skipping insertion in model container [2022-11-22 01:23:48,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:23:48" (2/3) ... [2022-11-22 01:23:48,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@270e2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:23:48, skipping insertion in model container [2022-11-22 01:23:48,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:48" (3/3) ... [2022-11-22 01:23:48,744 INFO L112 eAbstractionObserver]: Analyzing ICFG array_range_init.i [2022-11-22 01:23:48,774 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:23:48,774 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 01:23:48,841 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:23:48,850 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;@384c842c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:23:48,850 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 01:23:48,855 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:48,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 01:23:48,868 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:48,869 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 01:23:48,869 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:48,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:48,874 INFO L85 PathProgramCache]: Analyzing trace with hash 889661671, now seen corresponding path program 1 times [2022-11-22 01:23:48,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:23:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [557083337] [2022-11-22 01:23:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:48,889 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:48,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:23:48,895 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:23:48,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:23:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:49,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:23:49,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:49,172 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 01:23:49,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:23:49,173 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:23:49,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [557083337] [2022-11-22 01:23:49,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [557083337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:49,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:23:49,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-22 01:23:49,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470213721] [2022-11-22 01:23:49,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:49,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:49,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:23:49,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:49,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 01:23:49,234 INFO L87 Difference]: Start difference. First operand has 23 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:23:49,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:49,367 INFO L93 Difference]: Finished difference Result 55 states and 76 transitions. [2022-11-22 01:23:49,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:49,371 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:23:49,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:49,380 INFO L225 Difference]: With dead ends: 55 [2022-11-22 01:23:49,381 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 01:23:49,385 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 01:23:49,391 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 10 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:49,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 41 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 01:23:49,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2022-11-22 01:23:49,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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 01:23:49,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-22 01:23:49,441 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 6 [2022-11-22 01:23:49,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:49,442 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-22 01:23:49,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 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 01:23:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-22 01:23:49,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:23:49,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:49,444 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2022-11-22 01:23:49,461 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:49,655 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:49,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:49,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:49,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1505569711, now seen corresponding path program 1 times [2022-11-22 01:23:49,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:23:49,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1980960169] [2022-11-22 01:23:49,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:49,664 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:23:49,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:23:49,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:23:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:49,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:23:49,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:49,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:49,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:50,047 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:50,047 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:23:50,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1980960169] [2022-11-22 01:23:50,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1980960169] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:50,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1727155453] [2022-11-22 01:23:50,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:50,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:50,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:23:50,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:23:50,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-22 01:23:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:50,197 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:23:50,199 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:50,263 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:50,264 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:50,334 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:50,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1727155453] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:50,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1058553457] [2022-11-22 01:23:50,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:50,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:50,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:50,339 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:50,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 01:23:50,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:50,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:23:50,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:50,484 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 01:23:50,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:23:50,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1058553457] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:50,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:23:50,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 11 [2022-11-22 01:23:50,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770611283] [2022-11-22 01:23:50,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:50,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:50,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:23:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:50,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-22 01:23:50,492 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:50,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:50,596 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2022-11-22 01:23:50,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:50,598 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:23:50,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:50,599 INFO L225 Difference]: With dead ends: 31 [2022-11-22 01:23:50,599 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 01:23:50,599 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-22 01:23:50,600 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:50,601 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:50,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 01:23:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 20. [2022-11-22 01:23:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 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 01:23:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2022-11-22 01:23:50,611 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2022-11-22 01:23:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:50,612 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2022-11-22 01:23:50,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2022-11-22 01:23:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 01:23:50,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:50,614 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:50,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2022-11-22 01:23:50,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:51,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:51,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:51,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:51,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:51,216 INFO L85 PathProgramCache]: Analyzing trace with hash -1505567789, now seen corresponding path program 1 times [2022-11-22 01:23:51,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:23:51,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [524461515] [2022-11-22 01:23:51,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:51,218 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:51,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:23:51,219 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:23:51,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-22 01:23:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:51,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 01:23:51,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:51,319 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:51,428 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,429 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:23:51,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [524461515] [2022-11-22 01:23:51,429 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [524461515] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:51,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1743170204] [2022-11-22 01:23:51,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:51,430 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:51,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:23:51,432 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:23:51,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-22 01:23:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:51,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:23:51,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:51,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,570 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:51,746 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1743170204] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:51,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407198966] [2022-11-22 01:23:51,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:51,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:51,747 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:51,749 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:51,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 01:23:51,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:51,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-22 01:23:51,819 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:51,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:51,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407198966] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:51,990 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:23:51,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5, 6] total 14 [2022-11-22 01:23:51,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223137261] [2022-11-22 01:23:51,991 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:23:51,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-22 01:23:51,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:23:51,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-22 01:23:51,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-11-22 01:23:51,992 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 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 01:23:52,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:52,622 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2022-11-22 01:23:52,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-22 01:23:52,625 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-22 01:23:52,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:52,626 INFO L225 Difference]: With dead ends: 58 [2022-11-22 01:23:52,627 INFO L226 Difference]: Without dead ends: 42 [2022-11-22 01:23:52,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=157, Invalid=349, Unknown=0, NotChecked=0, Total=506 [2022-11-22 01:23:52,631 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 84 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:52,632 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 48 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 01:23:52,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-22 01:23:52,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 32. [2022-11-22 01:23:52,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 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 01:23:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 34 transitions. [2022-11-22 01:23:52,644 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 34 transitions. Word has length 11 [2022-11-22 01:23:52,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:52,644 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 34 transitions. [2022-11-22 01:23:52,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 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 01:23:52,644 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 34 transitions. [2022-11-22 01:23:52,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 01:23:52,645 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:52,645 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:52,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:52,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:53,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:53,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:53,247 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:53,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:53,247 INFO L85 PathProgramCache]: Analyzing trace with hash -909311600, now seen corresponding path program 1 times [2022-11-22 01:23:53,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:23:53,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1813206735] [2022-11-22 01:23:53,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:53,248 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:53,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:23:53,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:23:53,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-22 01:23:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:53,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:23:53,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:53,476 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:53,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:53,855 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:53,856 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:23:53,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1813206735] [2022-11-22 01:23:53,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1813206735] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:53,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1746715687] [2022-11-22 01:23:53,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:53,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:53,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:23:53,864 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:23:53,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2022-11-22 01:23:53,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:53,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:23:53,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:54,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:54,125 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 01:23:54,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1746715687] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:54,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902126983] [2022-11-22 01:23:54,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:54,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:54,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:54,128 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:54,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-22 01:23:54,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:54,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-22 01:23:54,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:54,267 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:23:54,268 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:23:54,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902126983] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:23:54,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2022-11-22 01:23:54,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [11, 11, 11, 11] total 21 [2022-11-22 01:23:54,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857006016] [2022-11-22 01:23:54,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:23:54,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 01:23:54,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:23:54,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 01:23:54,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2022-11-22 01:23:54,273 INFO L87 Difference]: Start difference. First operand 32 states and 34 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:54,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:54,361 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2022-11-22 01:23:54,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 01:23:54,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-11-22 01:23:54,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:54,363 INFO L225 Difference]: With dead ends: 39 [2022-11-22 01:23:54,364 INFO L226 Difference]: Without dead ends: 38 [2022-11-22 01:23:54,364 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2022-11-22 01:23:54,365 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:54,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 24 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 01:23:54,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-22 01:23:54,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-11-22 01:23:54,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 states have internal predecessors, (39), 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 01:23:54,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 39 transitions. [2022-11-22 01:23:54,373 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 39 transitions. Word has length 29 [2022-11-22 01:23:54,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:54,373 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 39 transitions. [2022-11-22 01:23:54,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:54,374 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 39 transitions. [2022-11-22 01:23:54,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-22 01:23:54,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:23:54,375 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:23:54,390 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:54,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:54,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:54,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:54,983 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 01:23:54,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:23:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1401141179, now seen corresponding path program 1 times [2022-11-22 01:23:54,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:23:54,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032282314] [2022-11-22 01:23:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:54,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:23:54,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:23:54,986 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:23:54,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-22 01:23:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:55,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:23:55,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:55,156 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:23:55,157 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:55,507 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:23:55,507 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:23:55,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2032282314] [2022-11-22 01:23:55,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2032282314] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:55,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1781505173] [2022-11-22 01:23:55,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:55,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-22 01:23:55,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 [2022-11-22 01:23:55,513 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-22 01:23:55,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2022-11-22 01:23:55,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:55,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-22 01:23:55,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:55,681 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:23:55,681 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:55,748 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-22 01:23:55,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1781505173] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:55,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044699488] [2022-11-22 01:23:55,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:23:55,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:55,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:23:55,752 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 01:23:55,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-22 01:23:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:23:55,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 01:23:55,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:23:55,940 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:23:55,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 01:23:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-11-22 01:23:56,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044699488] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 01:23:56,185 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-22 01:23:56,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11, 11, 5, 5] total 26 [2022-11-22 01:23:56,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957513291] [2022-11-22 01:23:56,185 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-22 01:23:56,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 01:23:56,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:23:56,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 01:23:56,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=543, Unknown=0, NotChecked=0, Total=650 [2022-11-22 01:23:56,187 INFO L87 Difference]: Start difference. First operand 37 states and 39 transitions. Second operand has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:57,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:23:57,870 INFO L93 Difference]: Finished difference Result 94 states and 110 transitions. [2022-11-22 01:23:57,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-11-22 01:23:57,871 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2022-11-22 01:23:57,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:23:57,871 INFO L225 Difference]: With dead ends: 94 [2022-11-22 01:23:57,871 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 01:23:57,872 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=393, Invalid=1413, Unknown=0, NotChecked=0, Total=1806 [2022-11-22 01:23:57,873 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 193 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 551 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-22 01:23:57,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 130 Invalid, 608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 551 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-22 01:23:57,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 01:23:57,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 01:23:57,875 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 01:23:57,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 01:23:57,875 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-11-22 01:23:57,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:23:57,875 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 01:23:57,875 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.230769230769231) internal successors, (84), 26 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 01:23:57,875 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 01:23:57,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 01:23:57,878 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 01:23:57,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 01:23:57,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 01:23:57,879 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 01:23:57,887 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:58,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:58,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-22 01:23:58,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/cvc4 --incremental --print-success --lang smt,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 01:23:58,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-22 01:23:58,534 INFO L899 garLoopResultBuilder]: For program point L20(lines 20 23) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L902 garLoopResultBuilder]: At program point L29(lines 15 30) the Hoare annotation is: true [2022-11-22 01:23:58,535 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 25 28) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L899 garLoopResultBuilder]: For program point L25-3(line 25) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L899 garLoopResultBuilder]: For program point L25-4(line 25) no Hoare annotation was computed. [2022-11-22 01:23:58,535 INFO L895 garLoopResultBuilder]: At program point L25-5(lines 25 28) the Hoare annotation is: (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_main_~i~0#1|) (_ bv1 33)) (_ bv2147483647 33)) [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L25-6(lines 25 28) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L13(line 13) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L13-3(line 13) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L18-2(lines 18 24) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L18-3(line 18) no Hoare annotation was computed. [2022-11-22 01:23:58,536 INFO L899 garLoopResultBuilder]: For program point L18-4(line 18) no Hoare annotation was computed. [2022-11-22 01:23:58,537 INFO L895 garLoopResultBuilder]: At program point L18-5(lines 18 24) the Hoare annotation is: (bvsle (bvadd ((_ sign_extend 1) |ULTIMATE.start_main_~i~0#1|) (_ bv1 33)) (_ bv2147483647 33)) [2022-11-22 01:23:58,537 INFO L899 garLoopResultBuilder]: For program point L18-6(lines 18 24) no Hoare annotation was computed. [2022-11-22 01:23:58,540 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-22 01:23:58,548 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:23:58,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:23:58 BoogieIcfgContainer [2022-11-22 01:23:58,562 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:23:58,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:23:58,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:23:58,563 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:23:58,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:23:48" (3/4) ... [2022-11-22 01:23:58,567 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 01:23:58,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-22 01:23:58,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-22 01:23:58,580 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-22 01:23:58,580 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 01:23:58,606 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 01:23:58,606 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:23:58,607 INFO L158 Benchmark]: Toolchain (without parser) took 10502.26ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 32.9MB in the beginning and 51.2MB in the end (delta: -18.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:58,607 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 40.1MB in the beginning and 40.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:23:58,607 INFO L158 Benchmark]: CACSL2BoogieTranslator took 256.49ms. Allocated memory is still 62.9MB. Free memory was 32.8MB in the beginning and 40.3MB in the end (delta: -7.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,608 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.42ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 38.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,608 INFO L158 Benchmark]: Boogie Preprocessor took 25.05ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 37.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,608 INFO L158 Benchmark]: RCFGBuilder took 304.20ms. Allocated memory is still 62.9MB. Free memory was 37.3MB in the beginning and 26.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,609 INFO L158 Benchmark]: TraceAbstraction took 9825.20ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 54.0MB in the end (delta: -27.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,609 INFO L158 Benchmark]: Witness Printer took 43.68ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 51.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:23:58,611 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 62.9MB. Free memory was 40.1MB in the beginning and 40.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 256.49ms. Allocated memory is still 62.9MB. Free memory was 32.8MB in the beginning and 40.3MB in the end (delta: -7.6MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.42ms. Allocated memory is still 62.9MB. Free memory was 40.3MB in the beginning and 38.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.05ms. Allocated memory is still 62.9MB. Free memory was 38.7MB in the beginning and 37.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 304.20ms. Allocated memory is still 62.9MB. Free memory was 37.3MB in the beginning and 26.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 9825.20ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 26.2MB in the beginning and 54.0MB in the end (delta: -27.8MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 43.68ms. Allocated memory is still 75.5MB. Free memory was 54.0MB in the beginning and 51.2MB in the end (delta: 2.8MB). 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 9.7s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 304 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 304 mSDsluCounter, 270 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 215 mSDsCounter, 84 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 728 IncrementalHoareTripleChecker+Invalid, 812 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 84 mSolverCounterUnsat, 55 mSDtfsCounter, 728 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 491 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 330 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=4, InterpolantAutomatonStates: 53, 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, 5 MinimizatonAttempts, 29 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 18 NumberOfFragments, 13 HoareAnnotationTreeSize, 3 FomulaSimplifications, 65 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 51 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 264 NumberOfCodeBlocks, 264 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 459 ConstructedInterpolants, 0 QuantifiedInterpolants, 1443 SizeOfPredicates, 35 NumberOfNonLiveVariables, 690 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 134/448 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: NULL - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: NULL RESULT: Ultimate proved your program to be correct! [2022-11-22 01:23:58,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3a414fd-a5a9-4589-8115-74c3e8f740f0/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