./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire --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 6604dbb2462dfab53c0d37d83d08add09bc53abffb53773fd7099f9e7acddff3 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:12:20,063 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:12:20,187 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-32bit-Taipan_Default.epf [2023-11-23 21:12:20,194 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:12:20,195 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:12:20,235 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:12:20,236 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:12:20,237 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:12:20,238 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:12:20,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:12:20,244 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:12:20,245 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:12:20,246 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:12:20,247 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:12:20,248 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:12:20,248 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:12:20,249 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:12:20,250 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:12:20,250 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:12:20,251 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:12:20,251 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:12:20,252 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:12:20,253 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:12:20,254 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:12:20,254 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 21:12:20,255 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:12:20,255 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 21:12:20,256 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:12:20,256 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:12:20,257 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:12:20,258 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:12:20,259 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 21:12:20,259 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:12:20,259 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:12:20,260 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:12:20,260 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:12:20,260 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:12:20,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:20,261 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:12:20,261 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:12:20,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:12:20,262 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:12:20,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:12:20,263 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:12:20,263 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:12:20,263 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:12:20,264 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:12:20,264 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_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6604dbb2462dfab53c0d37d83d08add09bc53abffb53773fd7099f9e7acddff3 [2023-11-23 21:12:20,576 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:12:20,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:12:20,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:12:20,614 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:12:20,615 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:12:20,617 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2023-11-23 21:12:23,732 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:12:23,985 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:12:23,985 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i [2023-11-23 21:12:23,995 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/data/c002e98bc/aa7c95b788a94b53b5433ed462a367ff/FLAG9e4db4498 [2023-11-23 21:12:24,015 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/data/c002e98bc/aa7c95b788a94b53b5433ed462a367ff [2023-11-23 21:12:24,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:12:24,025 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:12:24,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:24,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:12:24,035 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:12:24,036 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,037 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5745fdba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24, skipping insertion in model container [2023-11-23 21:12:24,038 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:12:24,280 WARN L240 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_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2023-11-23 21:12:24,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:24,320 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:12:24,335 WARN L240 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_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/sv-benchmarks/c/loop-crafted/simple_array_index_value_4.i[919,932] [2023-11-23 21:12:24,360 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:12:24,376 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:12:24,377 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24 WrapperNode [2023-11-23 21:12:24,377 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:12:24,378 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:24,378 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:12:24,379 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:12:24,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,441 INFO L138 Inliner]: procedures = 17, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-23 21:12:24,442 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:12:24,443 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:12:24,443 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:12:24,443 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:12:24,453 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,461 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,461 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,475 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,483 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,498 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:12:24,499 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:12:24,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:12:24,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:12:24,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (1/1) ... [2023-11-23 21:12:24,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:12:24,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:24,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:12:24,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:12:24,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:12:24,580 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:12:24,580 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:12:24,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:12:24,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:12:24,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:12:24,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:12:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:12:24,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:12:24,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 21:12:24,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 21:12:24,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:12:24,662 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:12:24,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:12:24,860 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:12:24,901 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:12:24,901 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 21:12:24,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:24 BoogieIcfgContainer [2023-11-23 21:12:24,904 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:12:24,906 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:12:24,907 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:12:24,910 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:12:24,911 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:12:24" (1/3) ... [2023-11-23 21:12:24,911 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795cb0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:24, skipping insertion in model container [2023-11-23 21:12:24,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:12:24" (2/3) ... [2023-11-23 21:12:24,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@795cb0b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:12:24, skipping insertion in model container [2023-11-23 21:12:24,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:24" (3/3) ... [2023-11-23 21:12:24,914 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_4.i [2023-11-23 21:12:24,936 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:12:24,936 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:12:24,990 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:12:24,999 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@79bf6840, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:12:24,999 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:12:25,004 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:12:25,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-23 21:12:25,013 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:25,014 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:25,016 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:25,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:25,027 INFO L85 PathProgramCache]: Analyzing trace with hash -287451926, now seen corresponding path program 1 times [2023-11-23 21:12:25,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:25,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641437827] [2023-11-23 21:12:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:25,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:25,370 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:25,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641437827] [2023-11-23 21:12:25,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641437827] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:25,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:12:25,372 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:12:25,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586843102] [2023-11-23 21:12:25,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:25,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:12:25,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:25,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:12:25,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:12:25,414 INFO L87 Difference]: Start difference. First operand has 24 states, 15 states have (on average 1.4) internal successors, (21), 17 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:12:25,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:25,468 INFO L93 Difference]: Finished difference Result 47 states and 63 transitions. [2023-11-23 21:12:25,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:12:25,471 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-23 21:12:25,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:25,478 INFO L225 Difference]: With dead ends: 47 [2023-11-23 21:12:25,479 INFO L226 Difference]: Without dead ends: 23 [2023-11-23 21:12:25,482 INFO L412 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 [2023-11-23 21:12:25,486 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:25,487 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:25,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-23 21:12:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2023-11-23 21:12:25,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:12:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2023-11-23 21:12:25,527 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 14 [2023-11-23 21:12:25,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:25,528 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2023-11-23 21:12:25,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:12:25,529 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2023-11-23 21:12:25,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 21:12:25,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:25,531 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:25,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:12:25,531 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:25,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:25,533 INFO L85 PathProgramCache]: Analyzing trace with hash 735697347, now seen corresponding path program 1 times [2023-11-23 21:12:25,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:25,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971729740] [2023-11-23 21:12:25,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:25,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:25,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:25,823 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:25,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:25,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971729740] [2023-11-23 21:12:25,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971729740] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:12:25,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [138100969] [2023-11-23 21:12:25,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:25,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:25,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:25,834 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:25,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 21:12:25,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:25,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-23 21:12:25,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:26,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 21:12:26,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [138100969] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:26,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 21:12:26,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2023-11-23 21:12:26,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556129819] [2023-11-23 21:12:26,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:26,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:12:26,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:26,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:12:26,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-23 21:12:26,128 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:12:26,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:26,289 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-11-23 21:12:26,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 21:12:26,290 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2023-11-23 21:12:26,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:26,293 INFO L225 Difference]: With dead ends: 32 [2023-11-23 21:12:26,293 INFO L226 Difference]: Without dead ends: 30 [2023-11-23 21:12:26,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2023-11-23 21:12:26,296 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:26,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:12:26,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-11-23 21:12:26,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2023-11-23 21:12:26,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:12:26,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2023-11-23 21:12:26,309 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 15 [2023-11-23 21:12:26,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:26,309 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2023-11-23 21:12:26,310 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-23 21:12:26,310 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-11-23 21:12:26,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-23 21:12:26,311 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:26,311 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:26,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:26,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:26,532 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:26,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:26,533 INFO L85 PathProgramCache]: Analyzing trace with hash 656486795, now seen corresponding path program 1 times [2023-11-23 21:12:26,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:26,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84196702] [2023-11-23 21:12:26,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:26,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:26,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:26,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84196702] [2023-11-23 21:12:26,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84196702] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:12:26,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [121358337] [2023-11-23 21:12:26,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:26,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:26,759 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:26,760 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:26,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 21:12:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:26,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:12:26,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:26,858 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:26,858 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:26,903 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-23 21:12:26,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [121358337] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:26,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1748293280] [2023-11-23 21:12:26,926 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2023-11-23 21:12:26,926 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:12:26,931 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:12:26,938 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:12:26,939 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:12:27,465 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 9 for LOIs [2023-11-23 21:12:27,468 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:12:27,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1748293280] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:12:27,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:12:27,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 3, 4] total 14 [2023-11-23 21:12:27,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519413183] [2023-11-23 21:12:27,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:12:27,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-23 21:12:27,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:27,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-23 21:12:27,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:12:27,715 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:12:27,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:27,879 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2023-11-23 21:12:27,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-23 21:12:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-11-23 21:12:27,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:27,881 INFO L225 Difference]: With dead ends: 42 [2023-11-23 21:12:27,882 INFO L226 Difference]: Without dead ends: 32 [2023-11-23 21:12:27,882 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2023-11-23 21:12:27,884 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 4 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:27,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 63 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 21:12:27,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2023-11-23 21:12:27,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2023-11-23 21:12:27,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:12:27,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-11-23 21:12:27,895 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2023-11-23 21:12:27,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:27,896 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-11-23 21:12:27,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-23 21:12:27,896 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-11-23 21:12:27,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-23 21:12:27,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:27,897 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:27,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:28,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:28,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:28,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1785926894, now seen corresponding path program 1 times [2023-11-23 21:12:28,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:28,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675676128] [2023-11-23 21:12:28,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:28,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:28,333 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:12:28,333 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:28,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675676128] [2023-11-23 21:12:28,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675676128] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:12:28,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1065564023] [2023-11-23 21:12:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:28,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:28,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:28,336 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:28,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 21:12:28,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:28,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 21:12:28,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:28,425 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-11-23 21:12:28,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:12:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:12:28,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1065564023] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:12:28,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1953547583] [2023-11-23 21:12:28,475 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-23 21:12:28,475 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:12:28,476 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:12:28,476 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:12:28,476 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:12:31,493 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 120 for LOIs [2023-11-23 21:12:32,078 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2023-11-23 21:12:32,080 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:12:40,801 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '649#(and (or (exists ((|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_29| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_25| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_30| Int)) (and (<= (+ (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_30| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_25| 4294967296)) (<= 100000 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_25| 4294967296)) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_29| 1))) (exists ((|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| Int) (|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_23| Int) (|v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| Int) (|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_23| Int)) (and (or (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| 4294967296)) (= |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_23|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_23| (- 17179869184) (* 4 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| 4294967296)))))) (and (<= (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| 4294967296) 2147483647) (= |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_23|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_23| (* 4 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| 4294967296))))))) (not (= (mod |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| 4294967296) (mod |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_1| 4294967296))) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_23| 1) (<= (+ 1 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_19| 4294967296)) (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296)) (or (and (<= (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296) 2147483647) (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_23|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_23| (* (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296) 4))))) (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296)) (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_1| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_23|) (+ |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_23| (- 17179869184) (* (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_24| 4294967296) 4))))))))) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0))' at error location [2023-11-23 21:12:40,801 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:12:40,802 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:12:40,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2023-11-23 21:12:40,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622689024] [2023-11-23 21:12:40,804 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:12:40,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 21:12:40,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:12:40,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 21:12:40,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=394, Unknown=2, NotChecked=0, Total=462 [2023-11-23 21:12:40,811 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:12:40,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:12:40,905 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2023-11-23 21:12:40,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-23 21:12:40,907 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 28 [2023-11-23 21:12:40,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:12:40,908 INFO L225 Difference]: With dead ends: 56 [2023-11-23 21:12:40,909 INFO L226 Difference]: Without dead ends: 31 [2023-11-23 21:12:40,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=73, Invalid=431, Unknown=2, NotChecked=0, Total=506 [2023-11-23 21:12:40,912 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 21:12:40,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 21:12:40,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-23 21:12:40,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-23 21:12:40,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-11-23 21:12:40,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2023-11-23 21:12:40,937 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 28 [2023-11-23 21:12:40,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:12:40,937 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2023-11-23 21:12:40,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 1 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-23 21:12:40,938 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2023-11-23 21:12:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-23 21:12:40,940 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:12:40,941 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:12:40,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 21:12:41,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:41,157 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:12:41,157 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:12:41,157 INFO L85 PathProgramCache]: Analyzing trace with hash -163528437, now seen corresponding path program 2 times [2023-11-23 21:12:41,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:12:41,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984078399] [2023-11-23 21:12:41,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:12:41,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:12:41,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:12:41,430 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-23 21:12:41,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:12:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984078399] [2023-11-23 21:12:41,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984078399] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 21:12:41,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935642726] [2023-11-23 21:12:41,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 21:12:41,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:12:41,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:12:41,434 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 21:12:41,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 21:12:41,624 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-23 21:12:41,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 21:12:41,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-23 21:12:41,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 21:12:41,668 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 1 [2023-11-23 21:12:42,450 INFO L349 Elim1Store]: treesize reduction 112, result has 5.9 percent of original size [2023-11-23 21:12:42,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 107 treesize of output 52 [2023-11-23 21:12:42,690 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-23 21:12:42,690 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 21:13:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-23 21:13:03,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935642726] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 21:13:03,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1118049494] [2023-11-23 21:13:03,743 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2023-11-23 21:13:03,744 INFO L166 IcfgInterpreter]: Building call graph [2023-11-23 21:13:03,744 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-11-23 21:13:03,744 INFO L176 IcfgInterpreter]: Starting interpretation [2023-11-23 21:13:03,744 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-11-23 21:13:04,597 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 100 for LOIs [2023-11-23 21:13:04,758 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 1 for LOIs [2023-11-23 21:13:04,760 INFO L180 IcfgInterpreter]: Interpretation finished [2023-11-23 21:13:10,206 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1005#(and (= |__VERIFIER_assert_#in~cond| 0) (or (exists ((|v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_49| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_51| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| Int) (|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| Int) (|v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_48| Int) (|v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| Int)) (and (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_48| 1) (not (= (mod |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| 4294967296) (mod |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3| 4294967296))) (or (and (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_49|) (+ (- 17179869184) (* (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| 4294967296) 4)))) (<= 2147483648 (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| 4294967296))) (and (= |v_ULTIMATE.start_main_#t~mem9#1_BEFORE_CALL_3| (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_49|) (* (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| 4294967296) 4))) (<= (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| 4294967296) 2147483647))) (<= (+ (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_55| 4294967296)) (= |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_51| 0) (or (and (<= 2147483648 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| 4294967296)) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_49|) (+ (- 17179869184) (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| 4294967296) 4))) |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3|)) (and (<= (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| 4294967296) 2147483647) (= (select (select |#memory_int| |v_ULTIMATE.start_main_~#array~0#1.base_BEFORE_CALL_49|) (* (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_45| 4294967296) 4)) |v_ULTIMATE.start_main_#t~mem10#1_BEFORE_CALL_3|))))) (and (exists ((|v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_54| Int) (|v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_57| Int)) (or (and (= |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_57| 0) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_54| 1)) (and (= |v_ULTIMATE.start_main_~#array~0#1.offset_BEFORE_CALL_57| 0) (= |v_ULTIMATE.start_main_~loop_entered~0#1_BEFORE_CALL_54| 0)))) (exists ((|v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_61| Int) (|v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_51| Int)) (and (<= 100000 (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_51| 4294967296)) (<= (+ (mod |v_ULTIMATE.start_main_~index1~0#1_BEFORE_CALL_61| 4294967296) 1) (mod |v_ULTIMATE.start_main_~index2~0#1_BEFORE_CALL_51| 4294967296)))))) (= __VERIFIER_assert_~cond 0))' at error location [2023-11-23 21:13:10,206 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-11-23 21:13:10,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 21:13:10,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 15, 13] total 29 [2023-11-23 21:13:10,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576109427] [2023-11-23 21:13:10,207 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 21:13:10,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-23 21:13:10,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:13:10,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-23 21:13:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=1707, Unknown=1, NotChecked=0, Total=1892 [2023-11-23 21:13:10,211 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 29 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 24 states have internal predecessors, (51), 8 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-23 21:13:14,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:13:14,780 INFO L93 Difference]: Finished difference Result 69 states and 81 transitions. [2023-11-23 21:13:14,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 21:13:14,781 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 24 states have internal predecessors, (51), 8 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 31 [2023-11-23 21:13:14,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:13:14,781 INFO L225 Difference]: With dead ends: 69 [2023-11-23 21:13:14,781 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 21:13:14,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 737 ImplicationChecksByTransitivity, 14.9s TimeCoverageRelationStatistics Valid=302, Invalid=2667, Unknown=1, NotChecked=0, Total=2970 [2023-11-23 21:13:14,784 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 20 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:13:14,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 152 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-11-23 21:13:14,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 21:13:14,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 21:13:14,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 21:13:14,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 21:13:14,786 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2023-11-23 21:13:14,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:13:14,787 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 21:13:14,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 22 states have (on average 2.3181818181818183) internal successors, (51), 24 states have internal predecessors, (51), 8 states have call successors, (14), 4 states have call predecessors, (14), 5 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-11-23 21:13:14,787 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 21:13:14,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 21:13:14,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 21:13:14,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 21:13:15,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 21:13:15,008 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 21:13:15,468 INFO L895 garLoopResultBuilder]: At program point L40-3(lines 40 42) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~loop_entered~0#1| 0)) (.cse1 (<= 1 |#StackHeapBarrier|)) (.cse2 (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) (.cse3 (<= 2 |ULTIMATE.start_main_~#array~0#1.base|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~0#1| 0) .cse2 .cse3) (and .cse0 .cse1 (<= (mod (+ 4294967295 |ULTIMATE.start_main_~i~0#1|) 4294967296) 99999) (<= 0 |ULTIMATE.start_main_~i~0#1|) .cse2 .cse3))) [2023-11-23 21:13:15,469 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 63) no Hoare annotation was computed. [2023-11-23 21:13:15,469 INFO L895 garLoopResultBuilder]: At program point L49-1(lines 49 55) the Hoare annotation is: (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296))) (<= (+ .cse2 1) .cse0))) (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (<= (mod |ULTIMATE.start_main_~index1~0#1| 4294967296) 99999) (exists ((|v_ULTIMATE.start_main_~i~0#1_29| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~i~0#1_29|) (<= 100000 (mod |v_ULTIMATE.start_main_~i~0#1_29| 4294967296)) (<= 2 |ULTIMATE.start_main_~#array~0#1.base|))) (<= (mod |ULTIMATE.start_main_~index2~0#1| 4294967296) 99999) (= |ULTIMATE.start_main_~#array~0#1.offset| 0))) [2023-11-23 21:13:15,469 INFO L899 garLoopResultBuilder]: For program point L49-2(lines 34 65) no Hoare annotation was computed. [2023-11-23 21:13:15,470 INFO L895 garLoopResultBuilder]: At program point L45(line 45) the Hoare annotation is: (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (exists ((|v_ULTIMATE.start_main_~i~0#1_29| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 100000 (mod |v_ULTIMATE.start_main_~i~0#1_29| 4294967296)) (<= 1 |v_ULTIMATE.start_main_~i~0#1_29|) (<= 2 |ULTIMATE.start_main_~#array~0#1.base|))) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) [2023-11-23 21:13:15,470 INFO L899 garLoopResultBuilder]: For program point L45-1(line 45) no Hoare annotation was computed. [2023-11-23 21:13:15,470 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 21:13:15,470 INFO L895 garLoopResultBuilder]: At program point L58-2(lines 58 62) the Hoare annotation is: (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (or (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296)) (<= (+ .cse2 1) .cse0))) (let ((.cse3 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296)) (.cse4 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (= (mod (select .cse1 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse3 4))) 4294967296) (mod (select .cse1 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse4 4))) 4294967296)) (<= (+ .cse3 1) .cse4) (<= .cse4 99999))))) [2023-11-23 21:13:15,470 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296))) (and (<= (+ (mod |ULTIMATE.start_main_~index1~0#1| 4294967296) 1) .cse0) (<= .cse0 99999))) [2023-11-23 21:13:15,471 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-11-23 21:13:15,471 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 21:13:15,471 INFO L895 garLoopResultBuilder]: At program point L59(line 59) the Hoare annotation is: (let ((.cse2 (mod (+ |ULTIMATE.start_main_~index1~0#1| 4294967295) 4294967296)) (.cse0 (mod (+ |ULTIMATE.start_main_~index2~0#1| 1) 4294967296))) (and (<= .cse0 99999) (let ((.cse1 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|))) (= (mod (select .cse1 (+ (* 4 .cse0) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296) (mod (select .cse1 (+ (* .cse2 4) |ULTIMATE.start_main_~#array~0#1.offset|)) 4294967296))) (= (mod |ULTIMATE.start_main_#t~mem9#1| 4294967296) (mod |ULTIMATE.start_main_#t~mem10#1| 4294967296)) (<= (+ .cse2 1) .cse0))) [2023-11-23 21:13:15,471 INFO L899 garLoopResultBuilder]: For program point L59-1(line 59) no Hoare annotation was computed. [2023-11-23 21:13:15,471 INFO L895 garLoopResultBuilder]: At program point L51(line 51) the Hoare annotation is: (let ((.cse1 (mod |ULTIMATE.start_main_~index2~0#1| 4294967296)) (.cse2 (select |#memory_int| |ULTIMATE.start_main_~#array~0#1.base|)) (.cse0 (mod |ULTIMATE.start_main_~index1~0#1| 4294967296))) (and (<= (+ .cse0 1) .cse1) (= (select .cse2 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse1 4))) |ULTIMATE.start_main_#t~mem6#1|) (<= .cse1 99999) (= |ULTIMATE.start_main_#t~mem5#1| (select .cse2 (+ |ULTIMATE.start_main_~#array~0#1.offset| (* .cse0 4)))))) [2023-11-23 21:13:15,472 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2023-11-23 21:13:15,472 INFO L895 garLoopResultBuilder]: At program point L47(line 47) the Hoare annotation is: (and (= |ULTIMATE.start_main_~loop_entered~0#1| 0) (<= (mod |ULTIMATE.start_main_~index1~0#1| 4294967296) 99999) (exists ((|v_ULTIMATE.start_main_~i~0#1_29| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 0 |v_ULTIMATE.start_main_~i~0#1_29|) (<= 100000 (mod |v_ULTIMATE.start_main_~i~0#1_29| 4294967296)) (<= 2 |ULTIMATE.start_main_~#array~0#1.base|))) (= |ULTIMATE.start_main_~#array~0#1.offset| 0)) [2023-11-23 21:13:15,472 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 20 22) the Hoare annotation is: true [2023-11-23 21:13:15,472 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 20 22) no Hoare annotation was computed. [2023-11-23 21:13:15,472 INFO L899 garLoopResultBuilder]: For program point L26(line 26) no Hoare annotation was computed. [2023-11-23 21:13:15,473 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 23 29) no Hoare annotation was computed. [2023-11-23 21:13:15,473 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 23 29) the Hoare annotation is: true [2023-11-23 21:13:15,473 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 27) no Hoare annotation was computed. [2023-11-23 21:13:15,473 INFO L899 garLoopResultBuilder]: For program point L25-2(lines 23 29) no Hoare annotation was computed. [2023-11-23 21:13:15,473 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 26) no Hoare annotation was computed. [2023-11-23 21:13:15,477 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2023-11-23 21:13:15,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 21:13:15,497 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated [2023-11-23 21:13:15,498 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated [2023-11-23 21:13:15,499 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~0#1_29 : int :: ((1 <= #StackHeapBarrier && 0 <= v_ULTIMATE.start_main_~i~0#1_29) && 100000 <= v_ULTIMATE.start_main_~i~0#1_29 % 4294967296) && 2 <= ~#array~0!base) could not be translated [2023-11-23 21:13:15,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated [2023-11-23 21:13:15,500 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated [2023-11-23 21:13:15,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~#array~0!offset + ~index1~0 % 4294967296 * 4] could not be translated [2023-11-23 21:13:15,501 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~#array~0!offset + ~index2~0 % 4294967296 * 4] could not be translated [2023-11-23 21:13:15,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 09:13:15 BoogieIcfgContainer [2023-11-23 21:13:15,502 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 21:13:15,502 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 21:13:15,502 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 21:13:15,503 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 21:13:15,503 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:12:24" (3/4) ... [2023-11-23 21:13:15,506 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 21:13:15,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-23 21:13:15,510 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-23 21:13:15,514 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-23 21:13:15,515 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 21:13:15,515 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 21:13:15,515 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 21:13:15,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/witness.graphml [2023-11-23 21:13:15,615 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/witness.yml [2023-11-23 21:13:15,615 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 21:13:15,616 INFO L158 Benchmark]: Toolchain (without parser) took 51591.75ms. Allocated memory was 188.7MB in the beginning and 474.0MB in the end (delta: 285.2MB). Free memory was 143.9MB in the beginning and 406.4MB in the end (delta: -262.5MB). Peak memory consumption was 23.5MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,617 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:15,617 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.51ms. Allocated memory is still 188.7MB. Free memory was 143.9MB in the beginning and 132.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,617 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.86ms. Allocated memory is still 188.7MB. Free memory was 132.0MB in the beginning and 130.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,618 INFO L158 Benchmark]: Boogie Preprocessor took 55.89ms. Allocated memory is still 188.7MB. Free memory was 130.6MB in the beginning and 129.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,618 INFO L158 Benchmark]: RCFGBuilder took 404.31ms. Allocated memory is still 188.7MB. Free memory was 129.2MB in the beginning and 115.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,619 INFO L158 Benchmark]: TraceAbstraction took 50595.25ms. Allocated memory was 188.7MB in the beginning and 474.0MB in the end (delta: 285.2MB). Free memory was 114.5MB in the beginning and 411.6MB in the end (delta: -297.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 21:13:15,619 INFO L158 Benchmark]: Witness Printer took 113.38ms. Allocated memory is still 474.0MB. Free memory was 411.6MB in the beginning and 406.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 21:13:15,621 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 127.9MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.51ms. Allocated memory is still 188.7MB. Free memory was 143.9MB in the beginning and 132.0MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.86ms. Allocated memory is still 188.7MB. Free memory was 132.0MB in the beginning and 130.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.89ms. Allocated memory is still 188.7MB. Free memory was 130.6MB in the beginning and 129.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 404.31ms. Allocated memory is still 188.7MB. Free memory was 129.2MB in the beginning and 115.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 50595.25ms. Allocated memory was 188.7MB in the beginning and 474.0MB in the end (delta: 285.2MB). Free memory was 114.5MB in the beginning and 411.6MB in the end (delta: -297.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 113.38ms. Allocated memory is still 474.0MB. Free memory was 411.6MB in the beginning and 406.4MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~i~0#1_29 : int :: ((1 <= #StackHeapBarrier && 0 <= v_ULTIMATE.start_main_~i~0#1_29) && 100000 <= v_ULTIMATE.start_main_~i~0#1_29 % 4294967296) && 2 <= ~#array~0!base) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][4 * ((~index2~0 + 1) % 4294967296) + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][(~index1~0 + 4294967295) % 4294967296 * 4 + ~#array~0!offset] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~#array~0!offset + ~index1~0 % 4294967296 * 4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int[~#array~0!base][~#array~0!offset + ~index2~0 % 4294967296 * 4] could not be translated * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 26]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.5s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 39 SdHoareTripleChecker+Valid, 3.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 384 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 298 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 633 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 86 mSDtfsCounter, 633 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 271 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 909 ImplicationChecksByTransitivity, 24.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=4, InterpolantAutomatonStates: 52, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 32 PreInvPairs, 51 NumberOfFragments, 389 HoareAnnotationTreeSize, 32 FomulaSimplifications, 246 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 631 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.5s InterpolantComputationTime, 196 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 260 ConstructedInterpolants, 4 QuantifiedInterpolants, 8645 SizeOfPredicates, 14 NumberOfNonLiveVariables, 344 ConjunctsInSsa, 63 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 84/104 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: OVERALL_TIME: 0.5s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 11, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.2s, TOOLS_POST_CALL_APPLICATIONS: 6, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 4, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 20, TOOLS_QUANTIFIERELIM_TIME: 0.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.1s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 36, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 5, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 11, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 4, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 117, DAG_COMPRESSION_RETAINED_NODES: 37, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: (((loop_entered == 0) && (i == 0)) || (((loop_entered == 0) && (((4294967295 + i) % 4294967296) <= 99999)) && (0 <= i))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || (((loop_entered == 0) && ((index1 % 4294967296) <= 99999)) && ((index2 % 4294967296) <= 99999))) - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (((((index2 + 1) % 4294967296) <= 99999) && ((((index1 + 4294967295) % 4294967296) + 1) <= ((index2 + 1) % 4294967296))) || ((((index1 % 4294967296) + 1) <= (index2 % 4294967296)) && ((index2 % 4294967296) <= 99999))) RESULT: Ultimate proved your program to be correct! [2023-11-23 21:13:15,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87b4d2b2-0e84-40a2-bf43-c0dbb5e0b842/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0