./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/reducercommutativity/rangesum05.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/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_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/reducercommutativity/rangesum05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/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_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/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 aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:29:50,080 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:29:50,221 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 05:29:50,226 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:29:50,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:29:50,257 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:29:50,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:29:50,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:29:50,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:29:50,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:29:50,261 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:29:50,262 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:29:50,263 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:29:50,263 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:29:50,264 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:29:50,264 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:29:50,265 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:29:50,266 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:29:50,266 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:29:50,267 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:29:50,268 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:29:50,269 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:29:50,270 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:29:50,270 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:29:50,271 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:29:50,271 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:29:50,272 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:29:50,276 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:29:50,277 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:29:50,278 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:29:50,278 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:29:50,279 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:29:50,279 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:29:50,279 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:29:50,280 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:29:50,283 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:29:50,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:29:50,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:29:50,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:29:50,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:29:50,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:29:50,287 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:29:50,287 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:29:50,288 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:29:50,289 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:29:50,289 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:29:50,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:29:50,290 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_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aee69f990ab81a58f1fe8cd275c8a09f43ca6a442f73810f885d3d0c9a85d2b3 [2024-11-09 05:29:50,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:29:50,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:29:50,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:29:50,688 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:29:50,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:29:50,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/reducercommutativity/rangesum05.i Unable to find full path for "g++" [2024-11-09 05:29:52,886 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:29:53,097 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:29:53,098 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/sv-benchmarks/c/reducercommutativity/rangesum05.i [2024-11-09 05:29:53,106 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/data/63986d9a5/543d32b2eab24a5fb14ad83bb9f13eab/FLAG711835e02 [2024-11-09 05:29:53,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/data/63986d9a5/543d32b2eab24a5fb14ad83bb9f13eab [2024-11-09 05:29:53,131 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:29:53,132 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:29:53,133 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:29:53,134 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:29:53,140 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:29:53,141 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,142 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e3a8142 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53, skipping insertion in model container [2024-11-09 05:29:53,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,167 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:29:53,399 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_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2024-11-09 05:29:53,404 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:29:53,415 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:29:53,444 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_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/sv-benchmarks/c/reducercommutativity/rangesum05.i[1457,1470] [2024-11-09 05:29:53,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:29:53,468 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:29:53,468 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53 WrapperNode [2024-11-09 05:29:53,469 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:29:53,470 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:29:53,470 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:29:53,471 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:29:53,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,488 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,511 INFO L138 Inliner]: procedures = 17, calls = 23, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-09 05:29:53,511 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:29:53,512 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:29:53,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:29:53,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:29:53,525 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,526 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,528 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,528 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,536 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,541 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,543 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:29:53,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:29:53,548 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:29:53,548 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:29:53,549 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (1/1) ... [2024-11-09 05:29:53,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:29:53,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:53,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:29:53,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:29:53,641 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:29:53,642 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:29:53,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:29:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:29:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:29:53,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:29:53,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:29:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure rangesum [2024-11-09 05:29:53,645 INFO L138 BoogieDeclarations]: Found implementation of procedure rangesum [2024-11-09 05:29:53,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:29:53,750 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:29:53,753 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:29:54,139 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-09 05:29:54,140 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:29:54,222 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:29:54,222 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:29:54,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:54 BoogieIcfgContainer [2024-11-09 05:29:54,223 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:29:54,226 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:29:54,226 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:29:54,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:29:54,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:29:53" (1/3) ... [2024-11-09 05:29:54,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2197593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:29:54, skipping insertion in model container [2024-11-09 05:29:54,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:29:53" (2/3) ... [2024-11-09 05:29:54,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2197593a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:29:54, skipping insertion in model container [2024-11-09 05:29:54,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:54" (3/3) ... [2024-11-09 05:29:54,234 INFO L112 eAbstractionObserver]: Analyzing ICFG rangesum05.i [2024-11-09 05:29:54,257 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:29:54,257 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:29:54,321 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:29:54,329 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;@743e6d2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:29:54,329 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:29:54,333 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 05:29:54,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 05:29:54,341 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:54,342 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 05:29:54,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:29:54,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:54,349 INFO L85 PathProgramCache]: Analyzing trace with hash 462675066, now seen corresponding path program 1 times [2024-11-09 05:29:54,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:54,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999784371] [2024-11-09 05:29:54,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:54,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:54,814 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 05:29:54,815 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:54,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999784371] [2024-11-09 05:29:54,816 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999784371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:54,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:29:54,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:29:54,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639125939] [2024-11-09 05:29:54,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:54,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:29:54,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:54,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:29:54,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:29:54,854 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 05:29:54,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:54,911 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2024-11-09 05:29:54,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:29:54,914 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 05:29:54,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:54,923 INFO L225 Difference]: With dead ends: 45 [2024-11-09 05:29:54,923 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 05:29:54,926 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 05:29:54,930 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:29:54,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:29:54,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 05:29:54,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 05:29:54,974 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 05:29:54,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-09 05:29:54,978 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 25 [2024-11-09 05:29:54,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:54,978 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-09 05:29:54,979 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 05:29:54,979 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-09 05:29:54,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 05:29:54,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:54,982 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 05:29:54,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:29:54,983 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:29:54,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:54,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1462551873, now seen corresponding path program 1 times [2024-11-09 05:29:54,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:54,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054936866] [2024-11-09 05:29:54,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:54,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:55,206 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 05:29:55,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:55,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054936866] [2024-11-09 05:29:55,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054936866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:55,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695443913] [2024-11-09 05:29:55,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:55,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:55,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:55,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:29:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:55,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:29:55,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:55,393 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 05:29:55,393 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:29:55,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695443913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:55,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:55,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 05:29:55,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145527093] [2024-11-09 05:29:55,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:55,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:29:55,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:55,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:29:55,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:29:55,405 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 05:29:55,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:55,441 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2024-11-09 05:29:55,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:29:55,442 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 05:29:55,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:55,443 INFO L225 Difference]: With dead ends: 41 [2024-11-09 05:29:55,443 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 05:29:55,444 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 05:29:55,445 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 05:29:55,446 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 05:29:55,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 05:29:55,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 05:29:55,456 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 05:29:55,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2024-11-09 05:29:55,459 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 27 [2024-11-09 05:29:55,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:55,459 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-11-09 05:29:55,459 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 05:29:55,460 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-11-09 05:29:55,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 05:29:55,461 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:55,461 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 05:29:55,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:29:55,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:55,667 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:29:55,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:55,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1576200379, now seen corresponding path program 1 times [2024-11-09 05:29:55,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:55,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291929471] [2024-11-09 05:29:55,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:55,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:55,883 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 05:29:55,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:55,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291929471] [2024-11-09 05:29:55,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291929471] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:55,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513534128] [2024-11-09 05:29:55,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:55,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:55,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:55,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:55,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:29:56,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:29:56,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:56,047 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 05:29:56,047 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:29:56,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513534128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:29:56,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:29:56,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 05:29:56,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280150588] [2024-11-09 05:29:56,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:29:56,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:29:56,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:29:56,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:29:56,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:29:56,052 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 05:29:56,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:29:56,092 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2024-11-09 05:29:56,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:29:56,095 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 05:29:56,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:29:56,096 INFO L225 Difference]: With dead ends: 40 [2024-11-09 05:29:56,096 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 05:29:56,097 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 05:29:56,098 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 05:29:56,100 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 05:29:56,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 05:29:56,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 05:29:56,108 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 05:29:56,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-09 05:29:56,110 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 33 [2024-11-09 05:29:56,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:29:56,113 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-09 05:29:56,113 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 05:29:56,113 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 05:29:56,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 05:29:56,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:29:56,115 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 05:29:56,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:29:56,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:56,317 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:29:56,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:29:56,318 INFO L85 PathProgramCache]: Analyzing trace with hash 139968746, now seen corresponding path program 1 times [2024-11-09 05:29:56,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:29:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306094706] [2024-11-09 05:29:56,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:29:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,492 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 05:29:56,492 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:29:56,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306094706] [2024-11-09 05:29:56,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306094706] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:29:56,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885799262] [2024-11-09 05:29:56,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:29:56,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:29:56,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:29:56,496 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:29:56,499 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:29:56,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:29:56,609 INFO L255 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:29:56,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:29:56,663 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 05:29:56,663 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:29:56,731 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 05:29:56,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885799262] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:29:56,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2061065810] [2024-11-09 05:29:56,757 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 05:29:56,757 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:29:56,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:29:56,766 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:29:56,767 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:30:00,846 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 05:30:01,450 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:31:25,473 WARN L286 SmtUtils]: Spent 1.29m 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 05:31:40,263 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '705#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_30| (Array Int (Array Int Int)))) (= |#memory_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|) 16 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 16))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (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 05:31:40,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:31:40,264 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:31:40,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-09 05:31:40,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593647452] [2024-11-09 05:31:40,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:31:40,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:31:40,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:31:40,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:31:40,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=473, Unknown=30, NotChecked=0, Total=600 [2024-11-09 05:31:40,267 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 05:31:40,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:31:40,338 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2024-11-09 05:31:40,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:31:40,340 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 05:31:40,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:31:40,342 INFO L225 Difference]: With dead ends: 54 [2024-11-09 05:31:40,342 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 05:31:40,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 98.8s TimeCoverageRelationStatistics Valid=97, Invalid=473, Unknown=30, NotChecked=0, Total=600 [2024-11-09 05:31:40,345 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 05:31:40,348 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 05:31:40,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 05:31:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-09 05:31:40,356 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 05:31:40,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-09 05:31:40,358 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 35 [2024-11-09 05:31:40,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:31:40,359 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-09 05:31:40,359 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 05:31:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-09 05:31:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 05:31:40,362 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:31:40,362 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 05:31:40,385 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:31:40,562 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:40,563 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:31:40,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:31:40,564 INFO L85 PathProgramCache]: Analyzing trace with hash 917990713, now seen corresponding path program 2 times [2024-11-09 05:31:40,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:31:40,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324408861] [2024-11-09 05:31:40,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:31:40,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:31:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:31:40,713 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 05:31:40,713 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:31:40,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324408861] [2024-11-09 05:31:40,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324408861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:31:40,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286842397] [2024-11-09 05:31:40,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:31:40,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:31:40,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:31:40,718 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:31:40,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:31:40,801 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 05:31:40,802 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:31:40,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:31:40,808 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:31:40,829 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 05:31:40,829 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:31:40,866 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 05:31:40,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286842397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:31:40,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2130332380] [2024-11-09 05:31:40,870 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 05:31:40,870 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:31:40,870 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:31:40,871 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:31:40,871 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:31:43,761 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 05:31:43,869 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:32:07,318 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|) 16 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 16))))) (<= 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 05:32:07,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:32:07,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:32:07,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 05:32:07,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428991404] [2024-11-09 05:32:07,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:32:07,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:32:07,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:07,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:32:07,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=469, Unknown=33, NotChecked=0, Total=600 [2024-11-09 05:32:07,321 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 05:32:07,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:07,388 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2024-11-09 05:32:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:32:07,389 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 05:32:07,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:07,390 INFO L225 Difference]: With dead ends: 57 [2024-11-09 05:32:07,390 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 05:32:07,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 23.5s TimeCoverageRelationStatistics Valid=98, Invalid=469, Unknown=33, NotChecked=0, Total=600 [2024-11-09 05:32:07,392 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 05:32:07,392 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 05:32:07,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 05:32:07,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 05:32:07,397 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 05:32:07,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-09 05:32:07,399 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 41 [2024-11-09 05:32:07,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:07,399 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-09 05:32:07,400 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 05:32:07,400 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-09 05:32:07,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 05:32:07,401 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:07,402 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 05:32:07,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:32:07,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:07,602 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:07,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:07,603 INFO L85 PathProgramCache]: Analyzing trace with hash -743178421, now seen corresponding path program 3 times [2024-11-09 05:32:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:07,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924015113] [2024-11-09 05:32:07,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:07,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:07,778 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 05:32:07,778 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:07,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924015113] [2024-11-09 05:32:07,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924015113] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:07,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807128500] [2024-11-09 05:32:07,779 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:32:07,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:07,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:07,781 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:07,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:32:07,882 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:32:07,882 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:32:07,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:32:07,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:07,974 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 05:32:07,975 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:08,068 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 05:32:08,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807128500] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:32:08,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [55681128] [2024-11-09 05:32:08,072 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 05:32:08,072 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:08,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:08,073 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:08,073 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:09,662 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 05:32:10,077 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:32:21,827 WARN L286 SmtUtils]: Spent 10.64s 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 05:32:28,109 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1604#(and (<= 1 |#StackHeapBarrier|) (<= 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|))))) (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|) 16 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 16))))))' at error location [2024-11-09 05:32:28,110 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:32:28,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:32:28,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 9 [2024-11-09 05:32:28,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368445259] [2024-11-09 05:32:28,110 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:32:28,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:32:28,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:32:28,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:32:28,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=569, Unknown=30, NotChecked=0, Total=702 [2024-11-09 05:32:28,113 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 05:32:28,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:32:28,208 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2024-11-09 05:32:28,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:32:28,209 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 05:32:28,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:32:28,209 INFO L225 Difference]: With dead ends: 66 [2024-11-09 05:32:28,210 INFO L226 Difference]: Without dead ends: 41 [2024-11-09 05:32:28,211 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 148 SyntacticMatches, 6 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=103, Invalid=569, Unknown=30, NotChecked=0, Total=702 [2024-11-09 05:32:28,212 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:32:28,212 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 106 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:32:28,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-09 05:32:28,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-09 05:32:28,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 36 states have internal predecessors, (40), 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 05:32:28,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2024-11-09 05:32:28,220 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 59 [2024-11-09 05:32:28,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:32:28,220 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2024-11-09 05:32:28,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 9 states have internal predecessors, (39), 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 05:32:28,221 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2024-11-09 05:32:28,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-09 05:32:28,223 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:32:28,223 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 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 05:32:28,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:32:28,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:28,424 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:32:28,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:32:28,424 INFO L85 PathProgramCache]: Analyzing trace with hash -132771850, now seen corresponding path program 4 times [2024-11-09 05:32:28,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:32:28,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547599108] [2024-11-09 05:32:28,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:32:28,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:32:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:28,755 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-09 05:32:28,755 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:32:28,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547599108] [2024-11-09 05:32:28,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547599108] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:32:28,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056980052] [2024-11-09 05:32:28,756 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:32:28,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:32:28,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:32:28,758 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:32:28,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:32:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:32:28,877 INFO L255 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 05:32:28,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:32:28,915 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-09 05:32:28,915 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:32:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 287 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2024-11-09 05:32:29,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056980052] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:32:29,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [482894746] [2024-11-09 05:32:29,008 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 05:32:29,009 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:32:29,009 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:32:29,009 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:32:29,010 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:32:37,549 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 05:32:37,777 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:33:02,471 WARN L286 SmtUtils]: Spent 20.62s on a formula simplification. DAG size of input: 115 DAG size of output: 57 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:33:46,430 WARN L286 SmtUtils]: Spent 38.93s on a formula simplification. DAG size of input: 79 DAG size of output: 62 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:34:41,845 WARN L286 SmtUtils]: Spent 45.59s on a formula simplification. DAG size of input: 223 DAG size of output: 158 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:13,039 WARN L286 SmtUtils]: Spent 14.73s on a formula simplification. DAG size of input: 97 DAG size of output: 80 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 05:35:15,046 WARN L851 $PredicateComparison]: unable to prove that (and (<= 0 (+ |c_ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= |c_ULTIMATE.start_main_~ret2~0#1| 2147483647) (exists ((v_rangesum_~cnt~0_134 Int) (v_rangesum_~ret~0_134 Int)) (and (let ((.cse0 (= v_rangesum_~cnt~0_134 0))) (or (and (not .cse0) (let ((.cse14 (div v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134))) (let ((.cse22 (mod (+ .cse14 4294967295) 4294967296)) (.cse15 (= (mod v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 0)) (.cse16 (+ v_rangesum_~ret~0_134 1))) (let ((.cse11 (+ |c_ULTIMATE.start_main_~ret5~0#1| 4294967296)) (.cse17 (<= .cse16 0)) (.cse18 (not .cse15)) (.cse10 (<= .cse22 2147483647)) (.cse8 (<= 2147483648 .cse22)) (.cse20 (mod (+ .cse14 1) 4294967296))) (let ((.cse6 (<= .cse20 2147483647)) (.cse5 (and .cse17 .cse18 (let ((.cse21 (= |c_ULTIMATE.start_main_~ret5~0#1| .cse20))) (or (and .cse10 .cse21) (and .cse21 .cse8))))) (.cse2 (<= 2147483648 .cse20)) (.cse3 (and .cse17 .cse18 (let ((.cse19 (= .cse20 .cse11))) (or (and .cse19 .cse8) (and .cse10 .cse19))))) (.cse7 (or .cse15 (< 0 .cse16))) (.cse1 (mod .cse14 4294967296))) (or (and (<= 2147483648 .cse1) (let ((.cse4 (and .cse7 (let ((.cse9 (= .cse1 .cse11))) (or (and .cse8 .cse9) (and .cse10 .cse9)))))) (or (and .cse2 (or .cse3 .cse4)) (and (or .cse5 .cse4) .cse6)))) (and (let ((.cse12 (and (let ((.cse13 (= |c_ULTIMATE.start_main_~ret5~0#1| .cse1))) (or (and .cse13 .cse10) (and .cse13 .cse8))) .cse7))) (or (and .cse6 (or .cse5 .cse12)) (and .cse2 (or .cse3 .cse12)))) (<= .cse1 2147483647)))))))) (and .cse0 (= |c_ULTIMATE.start_main_~ret5~0#1| 0)))) (<= 0 v_rangesum_~cnt~0_134))) (<= |c_ULTIMATE.start_main_~ret5~0#1| 2147483647) (<= 1 |c_#StackHeapBarrier|) (<= 0 (+ |c_ULTIMATE.start_main_~ret~1#1| 2147483648)) (<= 0 (+ |c_ULTIMATE.start_main_~ret5~0#1| 2147483648)) (<= 2 |c_ULTIMATE.start_main_~#x~0#1.base|) (<= |c_ULTIMATE.start_main_~ret~1#1| 2147483647) (= |c_ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_#memory_int_66| (Array Int (Array Int Int)))) (= (store |v_#memory_int_66| |c_ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_66| |c_ULTIMATE.start_main_~#x~0#1.base|) 16 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#x~0#1.base|) 16))) |c_#memory_int|))) is different from false [2024-11-09 05:35:15,050 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2182#(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|) 16 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 16))))) (<= 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_134 Int) (v_rangesum_~ret~0_134 Int)) (and (or (and (= v_rangesum_~cnt~0_134 0) (= |v_ULTIMATE.start_main_~ret5~0#1_22| 0)) (and (or (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296) (mod (+ (div v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 1) 4294967296)) (<= (+ v_rangesum_~ret~0_134 1) 0) (not (= (mod v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 0))) (and (<= (+ v_rangesum_~ret~0_134 1) 0) (not (= (mod v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_22| (mod (+ (div v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 1) 4294967296))) (and (or (= (mod v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 0) (< 0 (+ v_rangesum_~ret~0_134 1))) (= (mod (div v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296))) (and (= (mod (div v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|) (or (= (mod v_rangesum_~ret~0_134 v_rangesum_~cnt~0_134) 0) (< 0 (+ v_rangesum_~ret~0_134 1))))) (not (= v_rangesum_~cnt~0_134 0)))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |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_rangesum_~cnt~0_134) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)))))' at error location [2024-11-09 05:35:15,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:35:15,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:35:15,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 7] total 8 [2024-11-09 05:35:15,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680313308] [2024-11-09 05:35:15,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:35:15,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 05:35:15,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:15,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 05:35:15,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=472, Unknown=31, NotChecked=46, Total=650 [2024-11-09 05:35:15,053 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 05:35:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:15,108 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2024-11-09 05:35:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:35:15,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 67 [2024-11-09 05:35:15,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:15,110 INFO L225 Difference]: With dead ends: 74 [2024-11-09 05:35:15,110 INFO L226 Difference]: Without dead ends: 43 [2024-11-09 05:35:15,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 176 SyntacticMatches, 6 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 157.4s TimeCoverageRelationStatistics Valid=101, Invalid=472, Unknown=31, NotChecked=46, Total=650 [2024-11-09 05:35:15,112 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:15,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 40 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:35:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-09 05:35:15,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-09 05:35:15,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.105263157894737) internal successors, (42), 38 states have internal predecessors, (42), 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 05:35:15,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2024-11-09 05:35:15,120 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 67 [2024-11-09 05:35:15,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:15,120 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2024-11-09 05:35:15,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 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 05:35:15,121 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2024-11-09 05:35:15,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-09 05:35:15,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:15,123 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:15,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:35:15,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:15,324 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:15,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:15,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1474480123, now seen corresponding path program 5 times [2024-11-09 05:35:15,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:15,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254590826] [2024-11-09 05:35:15,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:15,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-09 05:35:15,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:15,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254590826] [2024-11-09 05:35:15,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254590826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:35:15,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535448540] [2024-11-09 05:35:15,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:35:15,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:15,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:15,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:35:15,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:35:15,668 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 05:35:15,669 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:35:15,670 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:35:15,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:35:15,705 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 128 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 05:35:15,706 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:35:15,775 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2024-11-09 05:35:15,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535448540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:35:15,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1587859719] [2024-11-09 05:35:15,779 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 05:35:15,780 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:35:15,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:35:15,781 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:35:15,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:35:18,491 INFO L197 IcfgInterpreter]: Interpreting procedure rangesum with input of size 10 for LOIs [2024-11-09 05:35:18,579 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:35:33,258 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2786#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_#memory_int_77| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_77| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_77| |ULTIMATE.start_main_~#x~0#1.base|) 16 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 16))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((v_rangesum_~ret~0_170 Int) (v_rangesum_~cnt~0_170 Int) (|v_ULTIMATE.start_main_~ret~1#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_23| 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_ULTIMATE.start_main_~ret2~0#1_23| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_22| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483648)) (<= 0 v_rangesum_~cnt~0_170) (<= |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_22| 2147483648)) (or (and (or (and (not (= (mod v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 0)) (<= (+ v_rangesum_~ret~0_170 1) 0) (or (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (+ (div v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 1) 4294967296)) (= (mod (+ (div v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)))) (and (or (= (mod v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 0) (< 0 (+ v_rangesum_~ret~0_170 1))) (or (= (mod (div v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (div v_rangesum_~ret~0_170 v_rangesum_~cnt~0_170) 4294967296))))) (not (= v_rangesum_~cnt~0_170 0))) (and (= v_rangesum_~cnt~0_170 0) (= |v_ULTIMATE.start_main_~ret5~0#1_24| 0))))))' at error location [2024-11-09 05:35:33,258 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:35:33,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:35:33,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-09 05:35:33,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116066497] [2024-11-09 05:35:33,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:35:33,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 05:35:33,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:33,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 05:35:33,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=472, Unknown=30, NotChecked=0, Total=600 [2024-11-09 05:35:33,260 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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 05:35:33,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:33,342 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2024-11-09 05:35:33,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:35:33,343 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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 69 [2024-11-09 05:35:33,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:33,344 INFO L225 Difference]: With dead ends: 66 [2024-11-09 05:35:33,344 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 05:35:33,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 184 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=98, Invalid=472, Unknown=30, NotChecked=0, Total=600 [2024-11-09 05:35:33,346 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 1 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:33,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 88 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:35:33,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 05:35:33,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 05:35:33,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.0731707317073171) internal successors, (44), 41 states have internal predecessors, (44), 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 05:35:33,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2024-11-09 05:35:33,353 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 69 [2024-11-09 05:35:33,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:33,354 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2024-11-09 05:35:33,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.714285714285714) internal successors, (33), 7 states have internal predecessors, (33), 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 05:35:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2024-11-09 05:35:33,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 05:35:33,356 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:33,356 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:33,374 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 05:35:33,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:33,561 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:33,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:33,561 INFO L85 PathProgramCache]: Analyzing trace with hash -138930939, now seen corresponding path program 6 times [2024-11-09 05:35:33,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111208753] [2024-11-09 05:35:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:33,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:35:34,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610220471] [2024-11-09 05:35:34,076 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:35:34,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:34,076 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:35:34,078 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:35:34,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:35:34,479 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:35:34,480 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-09 05:35:34,480 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 05:35:35,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 05:35:35,302 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2024-11-09 05:35:35,302 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 05:35:35,304 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 05:35:35,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:35:35,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:35:35,509 INFO L407 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1] [2024-11-09 05:35:35,575 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:35:35,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:35:35 BoogieIcfgContainer [2024-11-09 05:35:35,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:35:35,579 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:35:35,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:35:35,580 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:35:35,580 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:29:54" (3/4) ... [2024-11-09 05:35:35,581 INFO L136 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-09 05:35:35,697 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:35:35,697 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:35:35,698 INFO L158 Benchmark]: Toolchain (without parser) took 342565.95ms. Allocated memory was 123.7MB in the beginning and 388.0MB in the end (delta: 264.2MB). Free memory was 85.9MB in the beginning and 232.1MB in the end (delta: -146.2MB). Peak memory consumption was 119.7MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,698 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 69.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:35:35,699 INFO L158 Benchmark]: CACSL2BoogieTranslator took 335.80ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 72.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,699 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.24ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 71.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,699 INFO L158 Benchmark]: Boogie Preprocessor took 34.51ms. Allocated memory is still 123.7MB. Free memory was 71.2MB in the beginning and 69.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,700 INFO L158 Benchmark]: RCFGBuilder took 676.16ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 69.8MB in the beginning and 143.4MB in the end (delta: -73.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,700 INFO L158 Benchmark]: TraceAbstraction took 341352.68ms. Allocated memory was 178.3MB in the beginning and 388.0MB in the end (delta: 209.7MB). Free memory was 142.4MB in the beginning and 236.3MB in the end (delta: -93.9MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,701 INFO L158 Benchmark]: Witness Printer took 118.24ms. Allocated memory is still 388.0MB. Free memory was 236.3MB in the beginning and 232.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 05:35:35,702 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 123.7MB. Free memory was 70.1MB in the beginning and 69.9MB in the end (delta: 125.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 335.80ms. Allocated memory is still 123.7MB. Free memory was 85.6MB in the beginning and 72.9MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.24ms. Allocated memory is still 123.7MB. Free memory was 72.9MB in the beginning and 71.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.51ms. Allocated memory is still 123.7MB. Free memory was 71.2MB in the beginning and 69.8MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 676.16ms. Allocated memory was 123.7MB in the beginning and 178.3MB in the end (delta: 54.5MB). Free memory was 69.8MB in the beginning and 143.4MB in the end (delta: -73.7MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 341352.68ms. Allocated memory was 178.3MB in the beginning and 388.0MB in the end (delta: 209.7MB). Free memory was 142.4MB in the beginning and 236.3MB in the end (delta: -93.9MB). Peak memory consumption was 114.8MB. Max. memory is 16.1GB. * Witness Printer took 118.24ms. Allocated memory is still 388.0MB. Free memory was 236.3MB in the beginning and 232.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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[5]; [L43] CALL init_nondet(x) [L16] int i; [L17] i = 0 VAL [i=0, x={3:0}] [L17] COND FALSE !(i < 5) VAL [i=0, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=1, x={3:0}] [L17] COND FALSE !(i < 5) VAL [i=1, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=2, x={3:0}] [L17] COND FALSE !(i < 5) VAL [i=2, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=3, x={3:0}] [L17] COND FALSE !(i < 5) VAL [i=3, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=4, x={3:0}] [L17] COND FALSE !(i < 5) VAL [i=4, x={3:0}] [L17] COND TRUE i < 5 [L18] x[i] = __VERIFIER_nondet_int() [L17] i++ VAL [i=5, x={3:0}] [L17] COND TRUE i < 5 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 < 5) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=1, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=1, i=4, ret=1, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=6, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=2, ret=6, 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=3, 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 < 5) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=1, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=1, i=4, ret=1, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=6, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=2, ret=6, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L52] RET, EXPR rangesum(x) VAL [ret=3, x={3:0}] [L52] ret2 = rangesum(x) [L53] EXPR x[0] [L53] temp=x[0] [L54] int i =0 ; VAL [i=0, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND FALSE !(i<5 -1) VAL [i=0, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=1, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND FALSE !(i<5 -1) VAL [i=1, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=2, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND FALSE !(i<5 -1) VAL [i=2, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=3, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND FALSE !(i<5 -1) VAL [i=3, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND TRUE i<5 -1 [L55] EXPR x[i+1] [L55] x[i] = x[i+1] [L54] i++ VAL [i=4, ret2=3, ret=3, temp=-2, x={3:0}] [L54] COND TRUE i<5 -1 VAL [ret2=3, ret=3, temp=-2, x={3:0}] [L57] x[5 -1] = temp VAL [ret2=3, ret=3, 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 < 5) VAL [\old(x)={3:0}, cnt=0, i=0, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=1, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=2, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND FALSE !(i > 5/2) [L28] i++ VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=0, i=3, ret=0, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=1, i=4, ret=5, x={3:0}] [L28] COND FALSE !(i < 5) VAL [\old(x)={3:0}, cnt=1, i=4, ret=5, x={3:0}] [L28] COND TRUE i < 5 [L29] COND TRUE i > 5/2 [L30] EXPR x[i] [L30] ret = ret + x[i] [L31] cnt = cnt + 1 [L28] i++ VAL [\old(x)={3:0}, cnt=2, i=5, ret=3, x={3:0}] [L28] COND TRUE i < 5 VAL [\old(x)={3:0}, cnt=2, ret=3, x={3:0}] [L34] COND TRUE cnt !=0 [L35] return ret / cnt; [L58] RET, EXPR rangesum(x) VAL [ret2=3, ret=3, 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: 341.2s, OverallIterations: 9, TraceHistogramMax: 15, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 550 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 374 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 188 IncrementalHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 176 mSDtfsCounter, 188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 896 GetRequests, 754 SyntacticMatches, 17 SemanticMatches, 125 ConstructedPredicates, 1 IntricatePredicates, 5 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 312.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=8, InterpolantAutomatonStates: 43, 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, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 833 NumberOfCodeBlocks, 773 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 938 ConstructedInterpolants, 0 QuantifiedInterpolants, 1118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1125 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 20 InterpolantComputations, 3 PerfectInterpolantSequences, 2452/2653 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 05:35:35,917 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 05:35:35,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec1c5c7d-dba7-418f-bbd5-51fa5c2df120/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