./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum10.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:24:38,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:24:38,441 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:24:38,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:24:38,452 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:24:38,492 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:24:38,493 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:24:38,496 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:24:38,497 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:24:38,498 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:24:38,499 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:24:38,499 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:24:38,500 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:24:38,500 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:24:38,503 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:24:38,504 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:24:38,504 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:24:38,505 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:24:38,505 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:24:38,505 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:24:38,506 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:24:38,513 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:24:38,513 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:24:38,514 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:24:38,515 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:24:38,515 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:24:38,516 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:24:38,516 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:24:38,517 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:24:38,517 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:24:38,518 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:24:38,519 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:24:38,519 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:24:38,519 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:24:38,520 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:24:38,521 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:24:38,521 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:24:38,521 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:24:38,522 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:38,522 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:24:38,522 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:24:38,523 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:24:38,523 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:24:38,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:24:38,524 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:24:38,524 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:24:38,524 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:24:38,525 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 43671c88cb28f81a53d6c7fbea907e55b0f99c68f8a522c4103c0a12ddf9f652 [2024-11-09 07:24:38,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:24:38,927 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:24:38,931 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:24:38,934 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:24:38,935 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:24:38,937 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/reducercommutativity/rangesum10.i Unable to find full path for "g++" [2024-11-09 07:24:41,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:24:41,402 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:24:41,404 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/sv-benchmarks/c/reducercommutativity/rangesum10.i [2024-11-09 07:24:41,414 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/data/60f75d11e/c5c5cf2f3761486fa8917b80c7c6af95/FLAG4b2049d70 [2024-11-09 07:24:41,439 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/data/60f75d11e/c5c5cf2f3761486fa8917b80c7c6af95 [2024-11-09 07:24:41,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:24:41,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:24:41,451 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:41,452 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:24:41,463 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:24:41,466 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,467 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@97e9ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41, skipping insertion in model container [2024-11-09 07:24:41,468 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,501 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:24:41,778 WARN L250 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_e57b5242-23f1-430a-90b9-8b6a1f392969/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2024-11-09 07:24:41,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:41,795 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:24:41,825 WARN L250 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_e57b5242-23f1-430a-90b9-8b6a1f392969/sv-benchmarks/c/reducercommutativity/rangesum10.i[1465,1478] [2024-11-09 07:24:41,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:24:41,849 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:24:41,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41 WrapperNode [2024-11-09 07:24:41,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:24:41,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:41,852 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:24:41,852 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:24:41,862 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,871 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,898 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-09 07:24:41,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:24:41,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:24:41,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:24:41,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:24:41,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,916 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,919 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,929 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,934 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,939 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:24:41,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:24:41,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:24:41,941 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:24:41,942 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (1/1) ... [2024-11-09 07:24:41,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:24:41,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:41,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:24:41,981 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:24:42,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:24:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:24:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:24:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:24:42,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:24:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:24:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:24:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-11-09 07:24:42,023 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-11-09 07:24:42,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:24:42,133 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:24:42,138 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:24:42,454 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 07:24:42,454 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:24:42,553 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:24:42,555 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:24:42,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:42 BoogieIcfgContainer [2024-11-09 07:24:42,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:24:42,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:24:42,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:24:42,567 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:24:42,567 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:24:41" (1/3) ... [2024-11-09 07:24:42,569 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb5cf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:42, skipping insertion in model container [2024-11-09 07:24:42,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:24:41" (2/3) ... [2024-11-09 07:24:42,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fb5cf6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:24:42, skipping insertion in model container [2024-11-09 07:24:42,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:42" (3/3) ... [2024-11-09 07:24:42,573 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum10.i [2024-11-09 07:24:42,595 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:24:42,595 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:24:42,679 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:24:42,690 INFO L333 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, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@1132e57a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:24:42,693 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:24:42,699 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:42,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:24:42,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:42,716 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:42,717 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:24:42,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:42,730 INFO L85 PathProgramCache]: Analyzing trace with hash 462675066, now seen corresponding path program 1 times [2024-11-09 07:24:42,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:42,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809282884] [2024-11-09 07:24:42,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:42,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:43,305 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:24:43,306 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:43,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809282884] [2024-11-09 07:24:43,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809282884] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:43,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:24:43,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:24:43,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440112950] [2024-11-09 07:24:43,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:43,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:43,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:43,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:43,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:43,349 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:24:43,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:43,427 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2024-11-09 07:24:43,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:43,430 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-09 07:24:43,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:43,438 INFO L225 Difference]: With dead ends: 45 [2024-11-09 07:24:43,438 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 07:24:43,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:24:43,445 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:43,447 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:24:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 07:24:43,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 07:24:43,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:43,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-09 07:24:43,500 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 25 [2024-11-09 07:24:43,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:43,501 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-09 07:24:43,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:24:43,502 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-09 07:24:43,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 07:24:43,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:43,506 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:43,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:24:43,507 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:24:43,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:43,508 INFO L85 PathProgramCache]: Analyzing trace with hash -1462551873, now seen corresponding path program 1 times [2024-11-09 07:24:43,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:43,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554626283] [2024-11-09 07:24:43,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:43,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:43,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:43,825 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:24:43,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:43,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554626283] [2024-11-09 07:24:43,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554626283] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:43,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516525953] [2024-11-09 07:24:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:43,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:43,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:43,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:43,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:24:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:43,961 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:24:43,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:44,004 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:24:44,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:24:44,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516525953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:44,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:24:44,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 07:24:44,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272027225] [2024-11-09 07:24:44,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:44,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:44,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:44,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:44,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:44,014 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:44,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:44,054 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2024-11-09 07:24:44,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:44,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-09 07:24:44,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:44,056 INFO L225 Difference]: With dead ends: 41 [2024-11-09 07:24:44,056 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 07:24:44,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:44,059 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:44,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:44,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 07:24:44,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 07:24:44,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:44,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2024-11-09 07:24:44,071 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 27 [2024-11-09 07:24:44,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:44,071 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-11-09 07:24:44,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:44,072 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-11-09 07:24:44,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 07:24:44,075 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:44,075 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:44,098 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 07:24:44,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:44,280 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:24:44,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:44,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1576200379, now seen corresponding path program 1 times [2024-11-09 07:24:44,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:44,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098955191] [2024-11-09 07:24:44,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:44,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:44,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:44,396 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:24:44,396 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098955191] [2024-11-09 07:24:44,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098955191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:44,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825807516] [2024-11-09 07:24:44,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:44,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:44,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:44,400 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:44,403 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:24:44,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:44,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:24:44,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:44,544 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:24:44,545 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:24:44,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825807516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:24:44,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:24:44,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 07:24:44,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064775177] [2024-11-09 07:24:44,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:24:44,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:24:44,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:24:44,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:24:44,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:44,549 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:44,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:24:44,583 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2024-11-09 07:24:44,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:24:44,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-09 07:24:44,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:24:44,585 INFO L225 Difference]: With dead ends: 40 [2024-11-09 07:24:44,585 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 07:24:44,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:24:44,587 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:24:44,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 42 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:24:44,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 07:24:44,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 07:24:44,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:24:44,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-09 07:24:44,595 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 33 [2024-11-09 07:24:44,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:24:44,597 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-09 07:24:44,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:24:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 07:24:44,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 07:24:44,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:24:44,599 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:24:44,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:24:44,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:44,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:24:44,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:24:44,801 INFO L85 PathProgramCache]: Analyzing trace with hash 139968746, now seen corresponding path program 1 times [2024-11-09 07:24:44,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:24:44,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137455902] [2024-11-09 07:24:44,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:44,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:24:44,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:24:44,993 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:24:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137455902] [2024-11-09 07:24:44,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137455902] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:24:44,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992195342] [2024-11-09 07:24:44,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:24:44,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:24:44,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:24:45,000 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:24:45,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:24:45,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:24:45,128 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:24:45,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:24:45,179 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:24:45,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:24:45,239 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:24:45,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992195342] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:24:45,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1586304965] [2024-11-09 07:24:45,275 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:24:45,275 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:24:45,279 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:24:45,285 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:24:45,285 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:24:49,799 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:24:50,546 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:16,347 WARN L286 SmtUtils]: Spent 1.33m on a formula simplification. DAG size of input: 115 DAG size of output: 65 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:26:24,201 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '705#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_30| (Array Int (Array Int Int)))) (= (store |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))) |#memory_int|)) (exists ((v_rangesum_~ret~0_34 Int) (|v_ULTIMATE.start_main_~ret2~0#1_15| Int) (v_rangesum_~cnt~0_34 Int) (|v_ULTIMATE.start_main_~ret~1#1_15| Int) (|v_ULTIMATE.start_main_~ret5~0#1_15| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_15| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_15| 2147483648)) (<= 0 v_rangesum_~cnt~0_34) (<= |v_ULTIMATE.start_main_~ret5~0#1_15| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_15| 2147483648)) (or (and (= v_rangesum_~cnt~0_34 0) (= |v_ULTIMATE.start_main_~ret5~0#1_15| 0)) (and (not (= v_rangesum_~cnt~0_34 0)) (or (and (<= (+ v_rangesum_~ret~0_34 1) 0) (not (= (mod v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 0)) (or (= |v_ULTIMATE.start_main_~ret5~0#1_15| (mod (+ (div v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_15| 4294967296)))) (and (or (= (mod (div v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_15| 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_15| (mod (div v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 4294967296))) (or (< 0 (+ v_rangesum_~ret~0_34 1)) (= (mod v_rangesum_~ret~0_34 v_rangesum_~cnt~0_34) 0)))))) (<= |v_ULTIMATE.start_main_~ret~1#1_15| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_15| |v_ULTIMATE.start_main_~ret~1#1_15|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_15| |v_ULTIMATE.start_main_~ret5~0#1_15|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_15| 2147483648)))))' at error location [2024-11-09 07:26:24,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:26:24,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:26:24,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-09 07:26:24,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105023973] [2024-11-09 07:26:24,202 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:26:24,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:26:24,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:24,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:26:24,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=469, Unknown=34, NotChecked=0, Total=600 [2024-11-09 07:26:24,205 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:26:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:24,281 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2024-11-09 07:26:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:26:24,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 35 [2024-11-09 07:26:24,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:24,283 INFO L225 Difference]: With dead ends: 54 [2024-11-09 07:26:24,283 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 07:26:24,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 93.7s TimeCoverageRelationStatistics Valid=97, Invalid=469, Unknown=34, NotChecked=0, Total=600 [2024-11-09 07:26:24,285 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:24,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:26:24,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 07:26:24,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-09 07:26:24,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:26:24,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-09 07:26:24,293 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 35 [2024-11-09 07:26:24,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:24,293 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-09 07:26:24,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:26:24,294 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-09 07:26:24,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 07:26:24,295 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:24,296 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:24,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 07:26:24,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:24,497 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:24,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:24,497 INFO L85 PathProgramCache]: Analyzing trace with hash 917990713, now seen corresponding path program 2 times [2024-11-09 07:26:24,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:24,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285270364] [2024-11-09 07:26:24,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:24,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:26:24,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:24,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285270364] [2024-11-09 07:26:24,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285270364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:24,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936177856] [2024-11-09 07:26:24,705 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:26:24,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:24,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:24,709 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:24,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:26:24,809 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:26:24,809 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:26:24,814 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:26:24,820 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:26:24,846 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:26:24,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936177856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:24,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [721838357] [2024-11-09 07:26:24,904 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:26:24,904 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:24,905 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:24,908 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:24,909 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:28,518 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:26:28,668 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:49,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1093#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_38| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_17| Int) (|v_ULTIMATE.start_main_~ret2~0#1_16| Int) (|v_ULTIMATE.start_main_~ret~1#1_16| Int) (v_rangesum_~cnt~0_60 Int) (v_rangesum_~ret~0_60 Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret~1#1_16| |v_ULTIMATE.start_main_~ret5~0#1_17|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_16| |v_ULTIMATE.start_main_~ret~1#1_16|))) (<= |v_ULTIMATE.start_main_~ret~1#1_16| 2147483647) (or (and (not (= v_rangesum_~cnt~0_60 0)) (or (and (or (< 0 (+ v_rangesum_~ret~0_60 1)) (= (mod v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 4294967296) (mod (div v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 4294967296))) (and (not (= (mod v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 0)) (= (mod (+ (div v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_17|) (<= (+ v_rangesum_~ret~0_60 1) 0)) (and (not (= (mod v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 0)) (= (mod (+ (div v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 4294967296)) (<= (+ v_rangesum_~ret~0_60 1) 0)) (and (or (< 0 (+ v_rangesum_~ret~0_60 1)) (= (mod v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 0)) (= (mod (div v_rangesum_~ret~0_60 v_rangesum_~cnt~0_60) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_17|)))) (and (= v_rangesum_~cnt~0_60 0) (= |v_ULTIMATE.start_main_~ret5~0#1_17| 0))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_17| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_17| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_16| 2147483648)) (<= 0 v_rangesum_~cnt~0_60) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_16| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_16| 2147483647))))' at error location [2024-11-09 07:26:49,954 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:26:49,955 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:26:49,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 07:26:49,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [648192154] [2024-11-09 07:26:49,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:26:49,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:26:49,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:49,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:26:49,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=506, Unknown=49, NotChecked=0, Total=650 [2024-11-09 07:26:49,958 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:26:50,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:50,030 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2024-11-09 07:26:50,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:26:50,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-11-09 07:26:50,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:50,032 INFO L225 Difference]: With dead ends: 57 [2024-11-09 07:26:50,032 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 07:26:50,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=95, Invalid=506, Unknown=49, NotChecked=0, Total=650 [2024-11-09 07:26:50,034 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 102 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:50,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 102 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:26:50,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 07:26:50,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 07:26:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:26:50,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-09 07:26:50,043 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 41 [2024-11-09 07:26:50,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:50,043 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-09 07:26:50,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:26:50,044 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-09 07:26:50,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 07:26:50,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:50,046 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:50,073 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 07:26:50,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:50,247 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:26:50,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:50,248 INFO L85 PathProgramCache]: Analyzing trace with hash -743178421, now seen corresponding path program 3 times [2024-11-09 07:26:50,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:50,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477519918] [2024-11-09 07:26:50,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:50,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:50,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:50,445 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-09 07:26:50,445 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:50,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477519918] [2024-11-09 07:26:50,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477519918] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:50,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903449568] [2024-11-09 07:26:50,446 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:26:50,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:50,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:50,450 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:50,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:26:50,564 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:26:50,564 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:26:50,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:26:50,568 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:50,659 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 84 proven. 16 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-09 07:26:50,659 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:50,784 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-09 07:26:50,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903449568] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:50,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1086177917] [2024-11-09 07:26:50,788 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:26:50,789 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:50,789 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:50,789 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:50,790 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:52,747 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:26:53,221 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:05,256 WARN L286 SmtUtils]: Spent 10.79s on a formula simplification. DAG size of input: 111 DAG size of output: 59 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:15,061 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1610#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_50| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_50| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_18| Int) (|v_ULTIMATE.start_main_~ret5~0#1_19| Int) (v_rangesum_~ret~0_98 Int) (v_rangesum_~cnt~0_98 Int) (|v_ULTIMATE.start_main_~ret~1#1_18| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_18| 2147483647) (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_19| 0) (= v_rangesum_~cnt~0_98 0)) (and (or (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 4294967296) (mod (+ (div v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 1) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_19| (mod (+ (div v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 1) 4294967296))) (<= (+ v_rangesum_~ret~0_98 1) 0) (not (= (mod v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 0))) (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_19| 4294967296) (mod (div v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_19| (mod (div v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 4294967296))) (or (= (mod v_rangesum_~ret~0_98 v_rangesum_~cnt~0_98) 0) (< 0 (+ v_rangesum_~ret~0_98 1))))) (not (= v_rangesum_~cnt~0_98 0)))) (<= |v_ULTIMATE.start_main_~ret5~0#1_19| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_18| 2147483647) (<= 0 v_rangesum_~cnt~0_98) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_18| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_18| |v_ULTIMATE.start_main_~ret5~0#1_19|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_18| |v_ULTIMATE.start_main_~ret~1#1_18|))))))' at error location [2024-11-09 07:27:15,061 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:15,062 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:27:15,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-09 07:27:15,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103148164] [2024-11-09 07:27:15,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:15,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:27:15,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:15,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:27:15,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=812, Unknown=32, NotChecked=0, Total=992 [2024-11-09 07:27:15,064 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:27:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:15,187 INFO L93 Difference]: Finished difference Result 76 states and 95 transitions. [2024-11-09 07:27:15,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:27:15,188 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2024-11-09 07:27:15,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:15,190 INFO L225 Difference]: With dead ends: 76 [2024-11-09 07:27:15,190 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 07:27:15,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 401 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=148, Invalid=812, Unknown=32, NotChecked=0, Total=992 [2024-11-09 07:27:15,192 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:15,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 106 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:15,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 07:27:15,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 07:27:15,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:27:15,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-09 07:27:15,203 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 59 [2024-11-09 07:27:15,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:15,203 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-09 07:27:15,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-09 07:27:15,204 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-09 07:27:15,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 07:27:15,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:15,207 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:15,231 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 07:27:15,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:15,412 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:15,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:15,413 INFO L85 PathProgramCache]: Analyzing trace with hash -1703999916, now seen corresponding path program 4 times [2024-11-09 07:27:15,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:15,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500755263] [2024-11-09 07:27:15,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:15,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-11-09 07:27:15,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500755263] [2024-11-09 07:27:15,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500755263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:15,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054955978] [2024-11-09 07:27:15,855 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:27:15,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:15,856 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:15,858 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:15,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:27:16,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:16,042 INFO L255 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:27:16,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:16,096 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-11-09 07:27:16,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:16,208 INFO L134 CoverageAnalysis]: Checked inductivity of 992 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-11-09 07:27:16,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054955978] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:16,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [189494162] [2024-11-09 07:27:16,212 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:27:16,212 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:16,212 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:16,213 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:16,213 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:17,890 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:27:18,021 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:26,528 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2403#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_66| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_66| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_66| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_21| Int) (|v_ULTIMATE.start_main_~ret2~0#1_21| Int) (|v_ULTIMATE.start_main_~ret5~0#1_22| Int) (v_rangesum_~cnt~0_149 Int) (v_rangesum_~ret~0_149 Int)) (and (<= 0 v_rangesum_~cnt~0_149) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (or (and (= v_rangesum_~cnt~0_149 0) (= |v_ULTIMATE.start_main_~ret5~0#1_22| 0)) (and (not (= v_rangesum_~cnt~0_149 0)) (or (and (not (= (mod v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 0)) (or (= (mod (+ (div v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|) (= (mod (+ (div v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296))) (<= (+ v_rangesum_~ret~0_149 1) 0)) (and (or (= (mod (div v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296)) (= (mod (div v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|)) (or (< 0 (+ v_rangesum_~ret~0_149 1)) (= (mod v_rangesum_~ret~0_149 v_rangesum_~cnt~0_149) 0)))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_21| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_21| |v_ULTIMATE.start_main_~ret~1#1_21|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_21| |v_ULTIMATE.start_main_~ret5~0#1_22|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_21| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))))' at error location [2024-11-09 07:27:26,528 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:26,528 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:27:26,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 13 [2024-11-09 07:27:26,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780131567] [2024-11-09 07:27:26,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:26,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-09 07:27:26,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:26,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-09 07:27:26,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=746, Unknown=30, NotChecked=0, Total=930 [2024-11-09 07:27:26,531 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:27:26,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:26,623 INFO L93 Difference]: Finished difference Result 104 states and 119 transitions. [2024-11-09 07:27:26,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 07:27:26,624 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 97 [2024-11-09 07:27:26,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:26,626 INFO L225 Difference]: With dead ends: 104 [2024-11-09 07:27:26,626 INFO L226 Difference]: Without dead ends: 63 [2024-11-09 07:27:26,628 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 266 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=154, Invalid=746, Unknown=30, NotChecked=0, Total=930 [2024-11-09 07:27:26,630 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:26,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-09 07:27:26,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-09 07:27:26,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.0689655172413792) internal successors, (62), 58 states have internal predecessors, (62), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:27:26,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2024-11-09 07:27:26,642 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 97 [2024-11-09 07:27:26,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:26,643 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2024-11-09 07:27:26,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.3076923076923075) internal successors, (43), 13 states have internal predecessors, (43), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:27:26,643 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2024-11-09 07:27:26,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-09 07:27:26,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:26,648 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:26,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:27:26,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:26,848 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:26,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:26,849 INFO L85 PathProgramCache]: Analyzing trace with hash -1507297486, now seen corresponding path program 5 times [2024-11-09 07:27:26,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:26,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529809525] [2024-11-09 07:27:26,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:26,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:26,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:27,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-09 07:27:27,205 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529809525] [2024-11-09 07:27:27,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529809525] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:27,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243630591] [2024-11-09 07:27:27,206 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:27:27,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:27,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:27,209 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:27,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:27:27,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:27:27,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:27:27,370 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:27:27,373 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 448 proven. 4 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-09 07:27:27,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:27,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-09 07:27:27,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243630591] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:27,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [49095508] [2024-11-09 07:27:27,486 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:27:27,486 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:27,487 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:27,487 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:27,488 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:28,630 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:27:28,798 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:40,036 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3324#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_78| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_78| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_78| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (exists ((|v_ULTIMATE.start_main_~ret~1#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_23| Int) (v_rangesum_~cnt~0_200 Int) (v_rangesum_~ret~0_200 Int) (|v_ULTIMATE.start_main_~ret5~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_23| |v_ULTIMATE.start_main_~ret~1#1_22|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_22| |v_ULTIMATE.start_main_~ret5~0#1_24|))) (<= 0 v_rangesum_~cnt~0_200) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483648)) (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_24| 0) (= v_rangesum_~cnt~0_200 0)) (and (or (and (or (= (mod v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 0) (< 0 (+ v_rangesum_~ret~0_200 1))) (or (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (div v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 4294967296)) (= (mod (div v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)))) (and (<= (+ v_rangesum_~ret~0_200 1) 0) (not (= (mod v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 0)) (or (= (mod (+ (div v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_200 v_rangesum_~cnt~0_200) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_24|)))) (not (= v_rangesum_~cnt~0_200 0)))) (<= |v_ULTIMATE.start_main_~ret~1#1_22| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_22| 2147483648)))))' at error location [2024-11-09 07:27:40,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:27:40,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:27:40,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-11-09 07:27:40,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52241057] [2024-11-09 07:27:40,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:27:40,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 07:27:40,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:40,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 07:27:40,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=598, Unknown=48, NotChecked=0, Total=756 [2024-11-09 07:27:40,038 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:27:40,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:40,110 INFO L93 Difference]: Finished difference Result 100 states and 112 transitions. [2024-11-09 07:27:40,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 07:27:40,111 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 109 [2024-11-09 07:27:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:40,112 INFO L225 Difference]: With dead ends: 100 [2024-11-09 07:27:40,112 INFO L226 Difference]: Without dead ends: 70 [2024-11-09 07:27:40,113 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 11.3s TimeCoverageRelationStatistics Valid=110, Invalid=598, Unknown=48, NotChecked=0, Total=756 [2024-11-09 07:27:40,114 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:40,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 88 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:27:40,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-11-09 07:27:40,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-11-09 07:27:40,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.0461538461538462) internal successors, (68), 65 states have internal predecessors, (68), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:27:40,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2024-11-09 07:27:40,122 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 109 [2024-11-09 07:27:40,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:40,123 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2024-11-09 07:27:40,123 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:27:40,123 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2024-11-09 07:27:40,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 07:27:40,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:40,125 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:40,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:27:40,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:40,326 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:27:40,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:40,326 INFO L85 PathProgramCache]: Analyzing trace with hash -629098938, now seen corresponding path program 6 times [2024-11-09 07:27:40,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:40,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129982131] [2024-11-09 07:27:40,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:40,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-09 07:27:40,780 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:40,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129982131] [2024-11-09 07:27:40,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129982131] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:40,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [338049119] [2024-11-09 07:27:40,780 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:27:40,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:40,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:40,784 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:40,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:27:41,023 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:27:41,024 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:27:41,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 07:27:41,031 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:41,084 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 448 proven. 36 refuted. 0 times theorem prover too weak. 624 trivial. 0 not checked. [2024-11-09 07:27:41,084 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:41,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1108 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2024-11-09 07:27:41,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [338049119] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:41,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1472393937] [2024-11-09 07:27:41,204 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:27:41,204 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:41,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:41,205 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:41,205 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:46,110 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 07:27:46,205 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:00,610 WARN L286 SmtUtils]: Spent 12.34s on a formula simplification. DAG size of input: 81 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:27,583 WARN L286 SmtUtils]: Spent 19.57s on a formula simplification. DAG size of input: 269 DAG size of output: 172 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:43,624 WARN L286 SmtUtils]: Spent 8.68s on a formula simplification. DAG size of input: 99 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:28:49,079 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4303#(and (exists ((|v_#memory_int_94| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_94| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_94| |ULTIMATE.start_main_~#x~0#1.base|) 36 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 36))))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_23| Int) (|v_ULTIMATE.start_main_~ret2~0#1_25| Int) (v_rangesum_~cnt~0_251 Int) (v_rangesum_~ret~0_251 Int) (|v_ULTIMATE.start_main_~ret5~0#1_26| Int)) (and (<= |v_ULTIMATE.start_main_~ret~1#1_23| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_23| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_23| |v_ULTIMATE.start_main_~ret5~0#1_26|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_25| |v_ULTIMATE.start_main_~ret~1#1_23|))) (<= 0 v_rangesum_~cnt~0_251) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483647) (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_26| 0) (= v_rangesum_~cnt~0_251 0)) (and (or (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296) (mod (+ (div v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 1) 4294967296)) (not (= (mod v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 0)) (<= (+ v_rangesum_~ret~0_251 1) 0)) (and (= |v_ULTIMATE.start_main_~ret5~0#1_26| (mod (div v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_251 1)) (= (mod v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 0))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_26| (mod (+ (div v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 1) 4294967296)) (not (= (mod v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 0)) (<= (+ v_rangesum_~ret~0_251 1) 0)) (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296) (mod (div v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 4294967296)) (or (< 0 (+ v_rangesum_~ret~0_251 1)) (= (mod v_rangesum_~ret~0_251 v_rangesum_~cnt~0_251) 0)))) (not (= v_rangesum_~cnt~0_251 0)))) (<= |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483647))))' at error location [2024-11-09 07:28:49,079 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:49,079 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:28:49,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2024-11-09 07:28:49,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886422462] [2024-11-09 07:28:49,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:49,080 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:28:49,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:28:49,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=741, Unknown=49, NotChecked=0, Total=930 [2024-11-09 07:28:49,082 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:28:49,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:49,166 INFO L93 Difference]: Finished difference Result 106 states and 113 transitions. [2024-11-09 07:28:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 07:28:49,166 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 117 [2024-11-09 07:28:49,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:49,168 INFO L225 Difference]: With dead ends: 106 [2024-11-09 07:28:49,168 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 07:28:49,169 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 324 SyntacticMatches, 5 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 63.0s TimeCoverageRelationStatistics Valid=140, Invalid=741, Unknown=49, NotChecked=0, Total=930 [2024-11-09 07:28:49,170 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:49,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 71 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:28:49,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 07:28:49,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-09 07:28:49,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 71 states have (on average 1.0422535211267605) internal successors, (74), 71 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:28:49,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 80 transitions. [2024-11-09 07:28:49,191 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 80 transitions. Word has length 117 [2024-11-09 07:28:49,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:49,191 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 80 transitions. [2024-11-09 07:28:49,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5833333333333335) internal successors, (43), 12 states have internal predecessors, (43), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 07:28:49,192 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 80 transitions. [2024-11-09 07:28:49,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-09 07:28:49,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:49,198 INFO L215 NwaCegarLoop]: trace histogram [30, 30, 10, 10, 9, 9, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:49,217 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:28:49,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:49,398 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:28:49,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:49,399 INFO L85 PathProgramCache]: Analyzing trace with hash 381462133, now seen corresponding path program 7 times [2024-11-09 07:28:49,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:49,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927186514] [2024-11-09 07:28:49,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:49,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 07:28:50,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1860496376] [2024-11-09 07:28:50,549 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:28:50,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:50,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:50,551 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:50,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:28:51,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:28:51,452 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 07:28:51,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 07:28:51,990 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 07:28:51,990 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 07:28:51,991 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 07:28:52,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:28:52,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:28:52,198 INFO L407 BasicCegarLoop]: Path program histogram: [7, 1, 1, 1] [2024-11-09 07:28:52,317 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:28:52,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:28:52 BoogieIcfgContainer [2024-11-09 07:28:52,321 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:28:52,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:28:52,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:28:52,322 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:28:52,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:24:42" (3/4) ... [2024-11-09 07:28:52,324 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 07:28:52,472 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:28:52,472 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:28:52,473 INFO L158 Benchmark]: Toolchain (without parser) took 251026.79ms. Allocated memory was 159.4MB in the beginning and 520.1MB in the end (delta: 360.7MB). Free memory was 126.8MB in the beginning and 449.0MB in the end (delta: -322.2MB). Peak memory consumption was 40.5MB. Max. memory is 16.1GB. [2024-11-09 07:28:52,474 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 159.4MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:28:52,474 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.20ms. Allocated memory is still 159.4MB. Free memory was 126.8MB in the beginning and 113.5MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 07:28:52,474 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.84ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:28:52,475 INFO L158 Benchmark]: Boogie Preprocessor took 39.54ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:28:52,475 INFO L158 Benchmark]: RCFGBuilder took 616.50ms. Allocated memory is still 159.4MB. Free memory was 110.7MB in the beginning and 94.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-09 07:28:52,475 INFO L158 Benchmark]: TraceAbstraction took 249758.42ms. Allocated memory was 159.4MB in the beginning and 520.1MB in the end (delta: 360.7MB). Free memory was 94.0MB in the beginning and 456.3MB in the end (delta: -362.3MB). Peak memory consumption was 637.5kB. Max. memory is 16.1GB. [2024-11-09 07:28:52,476 INFO L158 Benchmark]: Witness Printer took 151.14ms. Allocated memory is still 520.1MB. Free memory was 456.3MB in the beginning and 449.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 07:28:52,477 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 159.4MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.20ms. Allocated memory is still 159.4MB. Free memory was 126.8MB in the beginning and 113.5MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.84ms. Allocated memory is still 159.4MB. Free memory was 113.5MB in the beginning and 112.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.54ms. Allocated memory is still 159.4MB. Free memory was 112.2MB in the beginning and 110.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 616.50ms. Allocated memory is still 159.4MB. Free memory was 110.7MB in the beginning and 94.6MB in the end (delta: 16.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 249758.42ms. Allocated memory was 159.4MB in the beginning and 520.1MB in the end (delta: 360.7MB). Free memory was 94.0MB in the beginning and 456.3MB in the end (delta: -362.3MB). Peak memory consumption was 637.5kB. Max. memory is 16.1GB. * Witness Printer took 151.14ms. Allocated memory is still 520.1MB. Free memory was 456.3MB in the beginning and 449.0MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. 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 - CounterExampleResult [Line: 61]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L42] int x[10]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=0, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=1, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=2, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=3, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=4, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=5, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=6, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=6, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=7, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=7, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=8, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=8, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=9, x={3:0}] [L17] COND FALSE !(i < 10) VAL [i=9, x={3:0}] [L17] COND TRUE i < 10 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=10, x={3:0}] [L17] COND TRUE i < 10 VAL [x={3:0}] [L43] RET init_nondet(x) [L44] int temp; [L45] int ret; [L46] int ret2; [L47] int ret5; VAL [x={3:0}] [L49] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=-36, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=1, i=7, ret=-36, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=-33, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=2, i=8, ret=-33, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=-31, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=3, i=9, ret=-31, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=-3, x={3:0}] [L28] COND TRUE i < 10 VAL [\old(x)={3:0}, cnt=4, ret=-3, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L49] RET, EXPR rangesum(x) VAL [x={3:0}] [L49] ret = rangesum(x) [L51] EXPR x[0] [L51] temp=x[0] [L51] EXPR x[1] [L51] x[0] = x[1] [L51] x[1] = temp VAL [ret=0, x={3:0}] [L52] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=-36, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=1, i=7, ret=-36, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=-33, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=2, i=8, ret=-33, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=-31, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=3, i=9, ret=-31, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=-3, x={3:0}] [L28] COND TRUE i < 10 VAL [\old(x)={3:0}, cnt=4, ret=-3, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L52] RET, EXPR rangesum(x) VAL [ret=0, x={3:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=0, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=1, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=2, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=3, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=4, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=5, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=5, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=6, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=6, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=7, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=7, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=8, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND FALSE !(i<10 -1) VAL [i=8, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=9, ret2=0, ret=0, temp=2, x={3:0}] [L54] COND TRUE i<10 -1 VAL [ret2=0, ret=0, temp=2, x={3:0}] [L57] x[10 -1] = temp VAL [ret2=0, ret=0, x={3:0}] [L58] CALL, EXPR rangesum(x) VAL [\old(x)={3:0}] [L24] int i; [L25] long long ret; [L26] ret = 0 [L27] int cnt = 0; [L28] i = 0 VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=4, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=5, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND FALSE !(i > 10/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=0, i=6, ret=0, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=7, ret=3, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=1, i=7, ret=3, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=8, ret=5, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=2, i=8, ret=5, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=3, i=9, ret=33, x={3:0}] [L28] COND FALSE !(i < 10) VAL [\old(x)={3:0}, cnt=3, i=9, ret=33, x={3:0}] [L28] COND TRUE i < 10 [L29] COND TRUE i > 10/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=4, i=10, ret=35, x={3:0}] [L28] COND TRUE i < 10 VAL [\old(x)={3:0}, cnt=4, ret=35, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L58] RET, EXPR rangesum(x) VAL [ret2=0, ret=0, x={3:0}] [L58] ret5 = rangesum(x) [L60] COND TRUE ret != ret2 || ret !=ret5 VAL [x={3:0}] [L61] reach_error() VAL [x={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 249.5s, OverallIterations: 10, TraceHistogramMax: 30, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 621 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 425 mSDsCounter, 25 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 249 IncrementalHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 25 mSolverCounterUnsat, 196 mSDtfsCounter, 249 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1464 GetRequests, 1288 SyntacticMatches, 8 SemanticMatches, 168 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 1913 ImplicationChecksByTransitivity, 219.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=9, InterpolantAutomatonStates: 66, 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, 9 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1307 NumberOfCodeBlocks, 1207 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 1496 ConstructedInterpolants, 0 QuantifiedInterpolants, 1754 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1626 ConjunctsInSsa, 34 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 10123/10432 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 RESULT: Ultimate proved your program to be incorrect! [2024-11-09 07:28:52,705 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 07:28:52,769 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e57b5242-23f1-430a-90b9-8b6a1f392969/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE