./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array07_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-15/array07_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 94e9a459f78c3121054dddbd02ed369b162f8ff75bebed614a4cadba488d510f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:45:53,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:45:53,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:45:53,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:45:53,228 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:45:53,229 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:45:53,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:45:53,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:45:53,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:45:53,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:45:53,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:45:53,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:45:53,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:45:53,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:45:53,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:45:53,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:45:53,238 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:45:53,239 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:45:53,241 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:45:53,242 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:45:53,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:45:53,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:45:53,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:45:53,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:45:53,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:45:53,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:45:53,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:45:53,250 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:45:53,251 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:45:53,252 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:45:53,252 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:45:53,253 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:45:53,253 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:45:53,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:45:53,255 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:45:53,255 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:45:53,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:45:53,256 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:45:53,256 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:45:53,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:45:53,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:45:53,258 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:45:53,277 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:45:53,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:45:53,277 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:45:53,277 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:45:53,278 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:45:53,278 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:45:53,278 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:45:53,278 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:45:53,279 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:45:53,280 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:45:53,280 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:45:53,280 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:45:53,280 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:45:53,281 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:45:53,281 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:45:53,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:45:53,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:45:53,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:45:53,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:45:53,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:45:53,283 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:45:53,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:53,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:45:53,283 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:45:53,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:45:53,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:45:53,284 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:45:53,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:45:53,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:45:53,284 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:45:53,284 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_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94e9a459f78c3121054dddbd02ed369b162f8ff75bebed614a4cadba488d510f [2022-12-14 05:45:53,469 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:45:53,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:45:53,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:45:53,492 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:45:53,492 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:45:53,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/termination-15/array07_alloca.i [2022-12-14 05:45:56,039 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:45:56,206 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:45:56,207 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/sv-benchmarks/c/termination-15/array07_alloca.i [2022-12-14 05:45:56,213 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/data/55da5e0e6/5d77c1c09f8e4292b3b3f6117b064bbb/FLAGb629e7408 [2022-12-14 05:45:56,226 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/data/55da5e0e6/5d77c1c09f8e4292b3b3f6117b064bbb [2022-12-14 05:45:56,228 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:45:56,230 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:45:56,231 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:56,231 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:45:56,235 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:45:56,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd7108b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56, skipping insertion in model container [2022-12-14 05:45:56,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:45:56,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:45:56,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:56,508 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:45:56,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:45:56,563 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:45:56,564 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56 WrapperNode [2022-12-14 05:45:56,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:45:56,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:56,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:45:56,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:45:56,572 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,600 INFO L138 Inliner]: procedures = 151, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2022-12-14 05:45:56,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:45:56,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:45:56,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:45:56,601 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:45:56,609 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,609 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,619 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,620 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:45:56,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:45:56,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:45:56,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:45:56,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (1/1) ... [2022-12-14 05:45:56,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:45:56,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:56,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:45:56,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:45:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:45:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:45:56,685 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 05:45:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:45:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:45:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:45:56,757 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:45:56,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:45:56,847 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:45:56,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:45:56,875 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-14 05:45:56,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:56 BoogieIcfgContainer [2022-12-14 05:45:56,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:45:56,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:45:56,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:45:56,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:45:56,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:45:56" (1/3) ... [2022-12-14 05:45:56,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@901c412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:56, skipping insertion in model container [2022-12-14 05:45:56,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:45:56" (2/3) ... [2022-12-14 05:45:56,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@901c412 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:45:56, skipping insertion in model container [2022-12-14 05:45:56,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:56" (3/3) ... [2022-12-14 05:45:56,886 INFO L112 eAbstractionObserver]: Analyzing ICFG array07_alloca.i [2022-12-14 05:45:56,906 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:45:56,906 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-14 05:45:56,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:45:56,947 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;@13e743c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:45:56,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-14 05:45:56,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:45:56,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:56,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:45:56,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 05:45:56,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:56,962 INFO L85 PathProgramCache]: Analyzing trace with hash 2905004, now seen corresponding path program 1 times [2022-12-14 05:45:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:56,971 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850192908] [2022-12-14 05:45:56,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:57,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:57,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:57,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850192908] [2022-12-14 05:45:57,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850192908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:57,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:57,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:45:57,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399852879] [2022-12-14 05:45:57,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:57,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:45:57,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:57,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:45:57,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:45:57,238 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.8181818181818181) internal successors, (20), 17 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:57,296 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2022-12-14 05:45:57,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:45:57,298 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:45:57,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:57,306 INFO L225 Difference]: With dead ends: 34 [2022-12-14 05:45:57,306 INFO L226 Difference]: Without dead ends: 28 [2022-12-14 05:45:57,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:45:57,312 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:57,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 37 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:45:57,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-14 05:45:57,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 19. [2022-12-14 05:45:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 18 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-14 05:45:57,342 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 4 [2022-12-14 05:45:57,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:57,342 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-14 05:45:57,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,342 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-14 05:45:57,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:45:57,343 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:57,343 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:45:57,343 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:45:57,343 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 05:45:57,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:57,344 INFO L85 PathProgramCache]: Analyzing trace with hash 90060467, now seen corresponding path program 1 times [2022-12-14 05:45:57,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:57,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087869321] [2022-12-14 05:45:57,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:57,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:57,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:57,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:57,419 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:57,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087869321] [2022-12-14 05:45:57,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087869321] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:57,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:45:57,420 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:45:57,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232338420] [2022-12-14 05:45:57,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:57,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:45:57,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:57,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:45:57,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:45:57,422 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:57,451 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-12-14 05:45:57,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 05:45:57,452 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:45:57,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:57,452 INFO L225 Difference]: With dead ends: 29 [2022-12-14 05:45:57,452 INFO L226 Difference]: Without dead ends: 19 [2022-12-14 05:45:57,453 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:45:57,454 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 3 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:57,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 35 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:45:57,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-14 05:45:57,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-14 05:45:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 18 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-12-14 05:45:57,458 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 5 [2022-12-14 05:45:57,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:57,459 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-12-14 05:45:57,459 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,459 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-12-14 05:45:57,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:45:57,460 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:57,460 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-12-14 05:45:57,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:45:57,460 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 05:45:57,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:57,461 INFO L85 PathProgramCache]: Analyzing trace with hash 643686766, now seen corresponding path program 1 times [2022-12-14 05:45:57,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:57,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399170971] [2022-12-14 05:45:57,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:57,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:57,549 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:57,549 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:57,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399170971] [2022-12-14 05:45:57,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399170971] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:45:57,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975270986] [2022-12-14 05:45:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:57,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:57,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:57,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:57,553 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:45:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:57,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:45:57,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:57,643 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:57,644 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:45:57,644 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975270986] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:45:57,644 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 05:45:57,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-12-14 05:45:57,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917757607] [2022-12-14 05:45:57,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:45:57,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:45:57,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:57,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:45:57,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:45:57,646 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 6 states, 5 states have (on average 1.4) 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) [2022-12-14 05:45:57,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:57,676 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-12-14 05:45:57,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:45:57,676 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) 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 [2022-12-14 05:45:57,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:57,677 INFO L225 Difference]: With dead ends: 19 [2022-12-14 05:45:57,677 INFO L226 Difference]: Without dead ends: 18 [2022-12-14 05:45:57,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:45:57,678 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 17 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:57,678 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 30 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:45:57,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-12-14 05:45:57,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-12-14 05:45:57,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 17 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:57,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-12-14 05:45:57,682 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 7 [2022-12-14 05:45:57,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:57,682 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-12-14 05:45:57,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) 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) [2022-12-14 05:45:57,682 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-12-14 05:45:57,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:45:57,683 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:57,683 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-12-14 05:45:57,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:45:57,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-12-14 05:45:57,885 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 05:45:57,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:57,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1520546676, now seen corresponding path program 1 times [2022-12-14 05:45:57,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:57,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303017955] [2022-12-14 05:45:57,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:57,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:57,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:58,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:58,071 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:45:58,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303017955] [2022-12-14 05:45:58,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303017955] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:45:58,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309305691] [2022-12-14 05:45:58,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:45:58,073 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:45:58,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:45:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:45:58,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 05:45:58,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:45:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:58,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:45:58,165 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:45:58,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309305691] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:45:58,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1665470801] [2022-12-14 05:45:58,181 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2022-12-14 05:45:58,182 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:45:58,185 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:45:58,190 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:45:58,190 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:45:58,249 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 9 [2022-12-14 05:45:58,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 17 [2022-12-14 05:45:58,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 05:45:58,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:45:58,359 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 32 treesize of output 27 [2022-12-14 05:45:58,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-12-14 05:45:58,427 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:45:58,598 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '278#(and (<= |ULTIMATE.start_main_~length~0#1| 2147483647) (< 2147483646 |ULTIMATE.start_main_#t~post207#1|) (<= 0 |ULTIMATE.start_main_#t~malloc206#1.base|) (<= |ULTIMATE.start_main_~arr~0#1.offset| 0) (= |ULTIMATE.start_main_#t~malloc206#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= 1 |ULTIMATE.start_main_~length~0#1|) (<= 0 |ULTIMATE.start_main_~arr~0#1.base|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~arr~0#1.offset|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-12-14 05:45:58,598 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:45:58,598 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:45:58,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-14 05:45:58,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518273808] [2022-12-14 05:45:58,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:45:58,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-12-14 05:45:58,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:45:58,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-12-14 05:45:58,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:45:58,601 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:58,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:45:58,680 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2022-12-14 05:45:58,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:45:58,681 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-14 05:45:58,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:45:58,681 INFO L225 Difference]: With dead ends: 55 [2022-12-14 05:45:58,681 INFO L226 Difference]: Without dead ends: 54 [2022-12-14 05:45:58,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2022-12-14 05:45:58,682 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 52 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:45:58,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 101 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:45:58,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-12-14 05:45:58,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 27. [2022-12-14 05:45:58,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:58,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-12-14 05:45:58,685 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 8 [2022-12-14 05:45:58,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:45:58,686 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-12-14 05:45:58,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 12 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:45:58,686 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-14 05:45:58,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 05:45:58,686 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:45:58,686 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:45:58,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 05:45:58,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:45:58,887 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-14 05:45:58,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:45:58,888 INFO L85 PathProgramCache]: Analyzing trace with hash -1520541391, now seen corresponding path program 1 times [2022-12-14 05:45:58,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:45:58,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135052878] [2022-12-14 05:45:58,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:45:58,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:45:58,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:45:58,900 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:45:58,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:45:58,930 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:45:58,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:45:58,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-14 05:45:58,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-14 05:45:58,934 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-14 05:45:58,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-14 05:45:58,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-14 05:45:58,935 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-14 05:45:58,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:45:58,940 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-12-14 05:45:58,946 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:45:58,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:45:58 BoogieIcfgContainer [2022-12-14 05:45:58,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:45:58,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:45:58,971 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:45:58,971 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:45:58,971 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:45:56" (3/4) ... [2022-12-14 05:45:58,974 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 05:45:59,012 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7d1403a-1b82-49d8-93db-f6b3bda60d0b/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:45:59,013 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:45:59,013 INFO L158 Benchmark]: Toolchain (without parser) took 2783.56ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 78.0MB in the beginning and 72.1MB in the end (delta: 6.0MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,014 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:45:59,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.96ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 60.7MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.69ms. Allocated memory is still 119.5MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,014 INFO L158 Benchmark]: Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 58.9MB in the beginning and 57.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,015 INFO L158 Benchmark]: RCFGBuilder took 255.00ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 57.4MB in the beginning and 146.6MB in the end (delta: -89.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,015 INFO L158 Benchmark]: TraceAbstraction took 2090.55ms. Allocated memory is still 182.5MB. Free memory was 145.8MB in the beginning and 74.1MB in the end (delta: 71.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,015 INFO L158 Benchmark]: Witness Printer took 42.28ms. Allocated memory is still 182.5MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:45:59,017 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 119.5MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.96ms. Allocated memory is still 119.5MB. Free memory was 77.7MB in the beginning and 60.7MB in the end (delta: 17.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.69ms. Allocated memory is still 119.5MB. Free memory was 60.7MB in the beginning and 58.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.57ms. Allocated memory is still 119.5MB. Free memory was 58.9MB in the beginning and 57.7MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 255.00ms. Allocated memory was 119.5MB in the beginning and 182.5MB in the end (delta: 62.9MB). Free memory was 57.4MB in the beginning and 146.6MB in the end (delta: -89.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2090.55ms. Allocated memory is still 182.5MB. Free memory was 145.8MB in the beginning and 74.1MB in the end (delta: 71.6MB). Peak memory consumption was 72.2MB. Max. memory is 16.1GB. * Witness Printer took 42.28ms. Allocated memory is still 182.5MB. Free memory was 74.1MB in the beginning and 72.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 375]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [__builtin_alloca(length*sizeof(int))={2:0}, arr={2:0}, i=0, length=1] [L370] COND TRUE i