./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapavg3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapavg3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E --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 0c77653a602ef2869a70dbeec3f7f47f64eb0584e28f8389865460dcae0ce0cd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 02:59:03,527 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 02:59:03,641 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-14 02:59:03,650 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 02:59:03,651 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 02:59:03,706 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 02:59:03,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 02:59:03,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 02:59:03,707 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 02:59:03,708 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 02:59:03,709 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 02:59:03,709 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 02:59:03,709 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 02:59:03,710 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 02:59:03,711 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 02:59:03,711 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 02:59:03,711 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 02:59:03,711 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 02:59:03,712 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 02:59:03,712 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 02:59:03,713 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 02:59:03,713 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 02:59:03,714 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 02:59:03,714 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 02:59:03,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 02:59:03,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:03,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 02:59:03,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 02:59:03,717 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 02:59:03,717 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 02:59:03,717 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 02:59:03,717 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E 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 -> 0c77653a602ef2869a70dbeec3f7f47f64eb0584e28f8389865460dcae0ce0cd [2024-11-14 02:59:04,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 02:59:04,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 02:59:04,141 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 02:59:04,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 02:59:04,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 02:59:04,147 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/array-crafted/mapavg3.i Unable to find full path for "g++" [2024-11-14 02:59:06,421 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 02:59:06,797 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 02:59:06,798 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/sv-benchmarks/c/array-crafted/mapavg3.i [2024-11-14 02:59:06,813 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/data/a4dd8afb3/e6daeb41e8f24be3a752aa9ead042989/FLAG1497184d2 [2024-11-14 02:59:06,863 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/data/a4dd8afb3/e6daeb41e8f24be3a752aa9ead042989 [2024-11-14 02:59:06,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 02:59:06,867 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 02:59:06,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:06,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 02:59:06,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 02:59:06,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:06" (1/1) ... [2024-11-14 02:59:06,877 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c5ab7c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:06, skipping insertion in model container [2024-11-14 02:59:06,877 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 02:59:06" (1/1) ... [2024-11-14 02:59:06,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 02:59:07,094 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/sv-benchmarks/c/array-crafted/mapavg3.i[1320,1333] [2024-11-14 02:59:07,099 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:07,109 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 02:59:07,134 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/sv-benchmarks/c/array-crafted/mapavg3.i[1320,1333] [2024-11-14 02:59:07,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 02:59:07,153 INFO L204 MainTranslator]: Completed translation [2024-11-14 02:59:07,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07 WrapperNode [2024-11-14 02:59:07,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 02:59:07,156 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:07,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 02:59:07,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 02:59:07,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,196 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-14 02:59:07,196 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 02:59:07,197 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 02:59:07,197 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 02:59:07,198 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 02:59:07,204 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,205 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,207 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,215 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,223 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 02:59:07,224 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 02:59:07,224 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 02:59:07,224 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 02:59:07,226 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (1/1) ... [2024-11-14 02:59:07,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 02:59:07,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:07,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 02:59:07,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 02:59:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 02:59:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 02:59:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 02:59:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 02:59:07,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 02:59:07,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 02:59:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 02:59:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure mapavg [2024-11-14 02:59:07,302 INFO L138 BoogieDeclarations]: Found implementation of procedure mapavg [2024-11-14 02:59:07,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 02:59:07,400 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 02:59:07,403 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 02:59:07,632 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-14 02:59:07,632 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 02:59:07,697 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 02:59:07,697 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 02:59:07,698 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:07 BoogieIcfgContainer [2024-11-14 02:59:07,698 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 02:59:07,701 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 02:59:07,701 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 02:59:07,707 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 02:59:07,708 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 02:59:06" (1/3) ... [2024-11-14 02:59:07,708 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efa9806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:07, skipping insertion in model container [2024-11-14 02:59:07,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 02:59:07" (2/3) ... [2024-11-14 02:59:07,709 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efa9806 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 02:59:07, skipping insertion in model container [2024-11-14 02:59:07,709 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 02:59:07" (3/3) ... [2024-11-14 02:59:07,711 INFO L112 eAbstractionObserver]: Analyzing ICFG mapavg3.i [2024-11-14 02:59:07,731 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 02:59:07,734 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG mapavg3.i that has 2 procedures, 17 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-11-14 02:59:07,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 02:59:07,814 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1c23adcb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 02:59:07,814 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 02:59:07,819 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:59:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-14 02:59:07,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:07,829 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:07,830 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:07,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:07,836 INFO L85 PathProgramCache]: Analyzing trace with hash 498068024, now seen corresponding path program 1 times [2024-11-14 02:59:07,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:07,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030750470] [2024-11-14 02:59:07,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:07,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:08,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 02:59:08,288 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:08,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030750470] [2024-11-14 02:59:08,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030750470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:08,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 02:59:08,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 02:59:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949654019] [2024-11-14 02:59:08,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:08,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:59:08,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:08,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:59:08,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:59:08,326 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:59:08,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:08,395 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-14 02:59:08,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:59:08,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-14 02:59:08,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:08,408 INFO L225 Difference]: With dead ends: 33 [2024-11-14 02:59:08,408 INFO L226 Difference]: Without dead ends: 16 [2024-11-14 02:59:08,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 02:59:08,418 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:08,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:59:08,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-14 02:59:08,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-14 02:59:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:59:08,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-14 02:59:08,466 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2024-11-14 02:59:08,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:08,467 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-14 02:59:08,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-14 02:59:08,467 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-14 02:59:08,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-14 02:59:08,472 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:08,472 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:08,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 02:59:08,473 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:08,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash 732239312, now seen corresponding path program 1 times [2024-11-14 02:59:08,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:08,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716616536] [2024-11-14 02:59:08,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:08,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:08,733 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-14 02:59:08,734 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716616536] [2024-11-14 02:59:08,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716616536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:08,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883786346] [2024-11-14 02:59:08,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:08,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:08,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:08,738 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:08,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 02:59:08,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:08,914 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 02:59:08,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:08,964 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-14 02:59:08,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:59:08,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883786346] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:08,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:59:08,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 02:59:08,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308909918] [2024-11-14 02:59:08,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:08,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:59:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:08,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:59:08,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:08,972 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 02:59:09,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:09,008 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2024-11-14 02:59:09,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:59:09,009 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-14 02:59:09,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:09,010 INFO L225 Difference]: With dead ends: 29 [2024-11-14 02:59:09,010 INFO L226 Difference]: Without dead ends: 17 [2024-11-14 02:59:09,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:09,012 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:09,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:59:09,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-14 02:59:09,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-14 02:59:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:59:09,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-14 02:59:09,018 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2024-11-14 02:59:09,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:09,019 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-14 02:59:09,019 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 02:59:09,019 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-14 02:59:09,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-14 02:59:09,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:09,020 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:09,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 02:59:09,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:09,221 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:09,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:09,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1541433441, now seen corresponding path program 1 times [2024-11-14 02:59:09,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:09,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061004235] [2024-11-14 02:59:09,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:09,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:09,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:09,376 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 02:59:09,377 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061004235] [2024-11-14 02:59:09,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061004235] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:09,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411665830] [2024-11-14 02:59:09,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:09,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:09,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:09,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:09,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-14 02:59:09,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:09,528 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 02:59:09,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:09,546 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-14 02:59:09,547 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 02:59:09,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411665830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 02:59:09,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 02:59:09,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 02:59:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175121028] [2024-11-14 02:59:09,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 02:59:09,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 02:59:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:09,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 02:59:09,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:09,551 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 02:59:09,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:09,576 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-14 02:59:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 02:59:09,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-14 02:59:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:09,579 INFO L225 Difference]: With dead ends: 27 [2024-11-14 02:59:09,579 INFO L226 Difference]: Without dead ends: 18 [2024-11-14 02:59:09,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 02:59:09,581 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:09,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:59:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-14 02:59:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-14 02:59:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:59:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-14 02:59:09,587 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2024-11-14 02:59:09,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:09,591 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-14 02:59:09,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-14 02:59:09,591 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-14 02:59:09,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-14 02:59:09,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:09,592 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:09,614 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-14 02:59:09,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-14 02:59:09,796 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:09,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:09,797 INFO L85 PathProgramCache]: Analyzing trace with hash -139107841, now seen corresponding path program 1 times [2024-11-14 02:59:09,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:09,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610337556] [2024-11-14 02:59:09,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:09,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:09,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 02:59:09,992 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610337556] [2024-11-14 02:59:09,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610337556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610664946] [2024-11-14 02:59:09,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:09,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:09,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:09,997 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:10,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-14 02:59:10,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:10,108 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:59:10,110 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 02:59:10,153 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:10,225 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-14 02:59:10,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610664946] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:10,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1289487800] [2024-11-14 02:59:10,257 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 02:59:10,257 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:59:10,262 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:59:10,269 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:59:10,269 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:59:12,110 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 02:59:12,326 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 02:59:40,454 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '533#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_14| Int) (|v_ULTIMATE.start_main_~ret~1#1_14| Int) (|v_ULTIMATE.start_main_~ret5~0#1_14| Int)) (and (<= |v_ULTIMATE.start_main_~ret5~0#1_14| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_14| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_14| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_14| 2147483648)) (or (and (exists ((|v_#memory_int_30| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_29 Int)) (and (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_14| 4294967296) (mod (div v_mapavg_~ret~0_29 10000) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_14| (mod (div v_mapavg_~ret~0_29 10000) 4294967296))) (or (< 0 (+ v_mapavg_~ret~0_29 1)) (= (mod v_mapavg_~ret~0_29 10000) 0))))) (and (exists ((|v_#memory_int_30| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_30| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_29 Int)) (and (<= (+ v_mapavg_~ret~0_29 1) 0) (not (= (mod v_mapavg_~ret~0_29 10000) 0)) (or (= (mod (+ (div v_mapavg_~ret~0_29 10000) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_14| 4294967296)) (= (mod (+ (div v_mapavg_~ret~0_29 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_14|)))))) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_14| |v_ULTIMATE.start_main_~ret5~0#1_14|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_14| |v_ULTIMATE.start_main_~ret~1#1_14|))) (<= |v_ULTIMATE.start_main_~ret2~0#1_14| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_14| 2147483648)))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 02:59:40,455 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 02:59:40,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 02:59:40,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-14 02:59:40,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414448107] [2024-11-14 02:59:40,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 02:59:40,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 02:59:40,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 02:59:40,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 02:59:40,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=290, Unknown=15, NotChecked=0, Total=380 [2024-11-14 02:59:40,458 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 02:59:40,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 02:59:40,491 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2024-11-14 02:59:40,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 02:59:40,492 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 25 [2024-11-14 02:59:40,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 02:59:40,492 INFO L225 Difference]: With dead ends: 36 [2024-11-14 02:59:40,493 INFO L226 Difference]: Without dead ends: 21 [2024-11-14 02:59:40,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 28.2s TimeCoverageRelationStatistics Valid=75, Invalid=290, Unknown=15, NotChecked=0, Total=380 [2024-11-14 02:59:40,496 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 02:59:40,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 02:59:40,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-14 02:59:40,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-14 02:59:40,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 02:59:40,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-14 02:59:40,508 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2024-11-14 02:59:40,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 02:59:40,508 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-14 02:59:40,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 02:59:40,508 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-14 02:59:40,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-14 02:59:40,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 02:59:40,509 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 02:59:40,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-14 02:59:40,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:40,715 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 02:59:40,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 02:59:40,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1708726169, now seen corresponding path program 2 times [2024-11-14 02:59:40,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 02:59:40,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312446777] [2024-11-14 02:59:40,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 02:59:40,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 02:59:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 02:59:40,883 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 02:59:40,883 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 02:59:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312446777] [2024-11-14 02:59:40,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312446777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 02:59:40,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561411493] [2024-11-14 02:59:40,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 02:59:40,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 02:59:40,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 02:59:40,890 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 02:59:40,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-14 02:59:41,001 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-14 02:59:41,002 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 02:59:41,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-14 02:59:41,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 02:59:41,033 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 02:59:41,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 02:59:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-14 02:59:41,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561411493] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 02:59:41,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [637280778] [2024-11-14 02:59:41,092 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 02:59:41,092 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 02:59:41,093 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 02:59:41,093 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 02:59:41,093 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 02:59:43,098 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 02:59:43,139 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:00:11,516 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '809#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_15| Int) (|v_ULTIMATE.start_main_~ret~1#1_15| Int) (|v_ULTIMATE.start_main_~ret5~0#1_16| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_15| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_15| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_16| 2147483647) (or (and (exists ((v_mapavg_~ret~0_51 Int)) (and (or (and (or (< 0 (+ v_mapavg_~ret~0_51 1)) (= (mod v_mapavg_~ret~0_51 10000) 0)) (= (mod (div v_mapavg_~ret~0_51 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 4294967296))) (and (= |v_ULTIMATE.start_main_~ret5~0#1_16| (mod (+ (div v_mapavg_~ret~0_51 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_51 1) 0) (not (= (mod v_mapavg_~ret~0_51 10000) 0))) (and (or (< 0 (+ v_mapavg_~ret~0_51 1)) (= (mod v_mapavg_~ret~0_51 10000) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_16| (mod (div v_mapavg_~ret~0_51 10000) 4294967296)))) (<= (mod (+ (div v_mapavg_~ret~0_51 10000) 1) 4294967296) 2147483647))) (exists ((|v_#memory_int_38| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996)))))) (and (exists ((|v_#memory_int_38| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_38| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_51 Int)) (and (or (and (or (< 0 (+ v_mapavg_~ret~0_51 1)) (= (mod v_mapavg_~ret~0_51 10000) 0)) (= (mod (div v_mapavg_~ret~0_51 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 4294967296))) (and (<= (+ v_mapavg_~ret~0_51 1) 0) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 4294967296) (mod (+ (div v_mapavg_~ret~0_51 10000) 1) 4294967296)) (not (= (mod v_mapavg_~ret~0_51 10000) 0))) (and (or (< 0 (+ v_mapavg_~ret~0_51 1)) (= (mod v_mapavg_~ret~0_51 10000) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_16| (mod (div v_mapavg_~ret~0_51 10000) 4294967296)))) (<= 2147483648 (mod (+ (div v_mapavg_~ret~0_51 10000) 1) 4294967296)))))) (<= |v_ULTIMATE.start_main_~ret~1#1_15| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_15| |v_ULTIMATE.start_main_~ret~1#1_15|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_15| |v_ULTIMATE.start_main_~ret5~0#1_16|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_15| 2147483648)))))' at error location [2024-11-14 03:00:11,516 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:00:11,517 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:00:11,517 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-14 03:00:11,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354636566] [2024-11-14 03:00:11,518 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:00:11,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-14 03:00:11,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:11,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-14 03:00:11,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=290, Unknown=15, NotChecked=0, Total=380 [2024-11-14 03:00:11,522 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:00:11,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:11,563 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2024-11-14 03:00:11,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-14 03:00:11,564 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), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 28 [2024-11-14 03:00:11,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:11,565 INFO L225 Difference]: With dead ends: 38 [2024-11-14 03:00:11,565 INFO L226 Difference]: Without dead ends: 24 [2024-11-14 03:00:11,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=75, Invalid=290, Unknown=15, NotChecked=0, Total=380 [2024-11-14 03:00:11,568 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:11,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:00:11,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-14 03:00:11,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-14 03:00:11,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:00:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-14 03:00:11,576 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2024-11-14 03:00:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:11,577 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-14 03:00:11,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:00:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-14 03:00:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-14 03:00:11,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:11,578 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:00:11,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-14 03:00:11,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:11,783 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:00:11,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:11,784 INFO L85 PathProgramCache]: Analyzing trace with hash -595388188, now seen corresponding path program 3 times [2024-11-14 03:00:11,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:11,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804221039] [2024-11-14 03:00:11,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:11,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:11,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:11,950 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-14 03:00:11,950 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:11,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804221039] [2024-11-14 03:00:11,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1804221039] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:00:11,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [363256875] [2024-11-14 03:00:11,950 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:00:11,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:11,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:11,953 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:00:11,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-14 03:00:12,085 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:00:12,086 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:00:12,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:00:12,090 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:00:12,163 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:00:12,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:00:12,298 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-14 03:00:12,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [363256875] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:00:12,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1322570419] [2024-11-14 03:00:12,301 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:00:12,302 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:00:12,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:00:12,302 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:00:12,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:00:13,677 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:00:13,728 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:00:37,944 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1156#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_18| Int) (|v_ULTIMATE.start_main_~ret2~0#1_17| Int) (|v_ULTIMATE.start_main_~ret~1#1_17| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_17| |v_ULTIMATE.start_main_~ret~1#1_17|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_17| |v_ULTIMATE.start_main_~ret5~0#1_18|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_17| 2147483648)) (or (and (exists ((|v_#memory_int_53| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_53| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_53| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_80 Int)) (and (or (and (= (mod (div v_mapavg_~ret~0_80 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296)) (or (= (mod v_mapavg_~ret~0_80 10000) 0) (< 0 (+ v_mapavg_~ret~0_80 1)))) (and (not (= (mod v_mapavg_~ret~0_80 10000) 0)) (= (mod (+ (div v_mapavg_~ret~0_80 10000) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296)) (<= (+ v_mapavg_~ret~0_80 1) 0)) (and (= |v_ULTIMATE.start_main_~ret5~0#1_18| (mod (div v_mapavg_~ret~0_80 10000) 4294967296)) (or (= (mod v_mapavg_~ret~0_80 10000) 0) (< 0 (+ v_mapavg_~ret~0_80 1))))) (<= 2147483648 (mod (+ (div v_mapavg_~ret~0_80 10000) 1) 4294967296))))) (and (exists ((v_mapavg_~ret~0_80 Int)) (and (or (and (= (mod (div v_mapavg_~ret~0_80 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296)) (or (= (mod v_mapavg_~ret~0_80 10000) 0) (< 0 (+ v_mapavg_~ret~0_80 1)))) (and (not (= (mod v_mapavg_~ret~0_80 10000) 0)) (<= (+ v_mapavg_~ret~0_80 1) 0) (= (mod (+ (div v_mapavg_~ret~0_80 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_18|)) (and (= |v_ULTIMATE.start_main_~ret5~0#1_18| (mod (div v_mapavg_~ret~0_80 10000) 4294967296)) (or (= (mod v_mapavg_~ret~0_80 10000) 0) (< 0 (+ v_mapavg_~ret~0_80 1))))) (<= (mod (+ (div v_mapavg_~ret~0_80 10000) 1) 4294967296) 2147483647))) (exists ((|v_#memory_int_53| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_53| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_53| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_17| 2147483647))))' at error location [2024-11-14 03:00:37,944 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:00:37,944 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:00:37,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 14 [2024-11-14 03:00:37,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654101952] [2024-11-14 03:00:37,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:00:37,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-14 03:00:37,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:00:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-14 03:00:37,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=564, Unknown=13, NotChecked=0, Total=702 [2024-11-14 03:00:37,946 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:00:38,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:00:38,001 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2024-11-14 03:00:38,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-14 03:00:38,001 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 37 [2024-11-14 03:00:38,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:00:38,002 INFO L225 Difference]: With dead ends: 49 [2024-11-14 03:00:38,002 INFO L226 Difference]: Without dead ends: 31 [2024-11-14 03:00:38,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 24.4s TimeCoverageRelationStatistics Valid=125, Invalid=564, Unknown=13, NotChecked=0, Total=702 [2024-11-14 03:00:38,003 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-14 03:00:38,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 63 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-14 03:00:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-14 03:00:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-14 03:00:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:00:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-14 03:00:38,009 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2024-11-14 03:00:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:00:38,009 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-14 03:00:38,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-14 03:00:38,009 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-14 03:00:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-14 03:00:38,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:00:38,011 INFO L215 NwaCegarLoop]: trace histogram [12, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:00:38,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-14 03:00:38,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:38,211 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:00:38,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:00:38,212 INFO L85 PathProgramCache]: Analyzing trace with hash -867766024, now seen corresponding path program 4 times [2024-11-14 03:00:38,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:00:38,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613889085] [2024-11-14 03:00:38,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:00:38,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:00:38,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:38,645 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 03:00:38,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:00:38,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613889085] [2024-11-14 03:00:38,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613889085] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:00:38,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484292257] [2024-11-14 03:00:38,646 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:00:38,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:00:38,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:00:38,648 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:00:38,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-14 03:00:38,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:00:38,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-14 03:00:38,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:00:38,828 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 03:00:38,828 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:00:39,151 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 03:00:39,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484292257] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:00:39,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1974489914] [2024-11-14 03:00:39,154 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:00:39,155 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:00:39,155 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:00:39,156 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:00:39,156 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:00:39,717 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:00:39,755 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:01:01,409 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1592#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_19| Int) (|v_ULTIMATE.start_main_~ret5~0#1_20| Int) (|v_ULTIMATE.start_main_~ret~1#1_19| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_19| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_20| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_19| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_19| 2147483647) (or (and (exists ((|v_#memory_int_75| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_109 Int)) (and (or (= (mod v_mapavg_~ret~0_109 10000) 0) (< 0 (+ v_mapavg_~ret~0_109 1))) (or (= (mod (div v_mapavg_~ret~0_109 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 4294967296)) (= (mod (div v_mapavg_~ret~0_109 10000) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_20|))))) (and (exists ((|v_#memory_int_75| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_75| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_109 Int)) (and (<= (+ v_mapavg_~ret~0_109 1) 0) (or (= |v_ULTIMATE.start_main_~ret5~0#1_20| (mod (+ (div v_mapavg_~ret~0_109 10000) 1) 4294967296)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 4294967296) (mod (+ (div v_mapavg_~ret~0_109 10000) 1) 4294967296))) (not (= (mod v_mapavg_~ret~0_109 10000) 0)))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_19| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_19| |v_ULTIMATE.start_main_~ret~1#1_19|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_19| |v_ULTIMATE.start_main_~ret5~0#1_20|))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:01:01,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:01:01,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:01,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 25 [2024-11-14 03:01:01,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734154336] [2024-11-14 03:01:01,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:01:01,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-14 03:01:01,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:01,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-14 03:01:01,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=1031, Unknown=27, NotChecked=0, Total=1406 [2024-11-14 03:01:01,412 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:01:01,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:01,487 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-14 03:01:01,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-14 03:01:01,488 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-14 03:01:01,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:01,489 INFO L225 Difference]: With dead ends: 62 [2024-11-14 03:01:01,489 INFO L226 Difference]: Without dead ends: 43 [2024-11-14 03:01:01,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 22.0s TimeCoverageRelationStatistics Valid=348, Invalid=1031, Unknown=27, NotChecked=0, Total=1406 [2024-11-14 03:01:01,491 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:01,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:01,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-14 03:01:01,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-14 03:01:01,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:01:01,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2024-11-14 03:01:01,498 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 44 [2024-11-14 03:01:01,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:01,498 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2024-11-14 03:01:01,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:01:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-11-14 03:01:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-14 03:01:01,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:01,501 INFO L215 NwaCegarLoop]: trace histogram [22, 12, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:01,519 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-14 03:01:01,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-14 03:01:01,701 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:01,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:01,702 INFO L85 PathProgramCache]: Analyzing trace with hash 632709880, now seen corresponding path program 5 times [2024-11-14 03:01:01,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:01,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258819095] [2024-11-14 03:01:01,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:01,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:01,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:02,827 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-14 03:01:02,828 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258819095] [2024-11-14 03:01:02,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258819095] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:02,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122688202] [2024-11-14 03:01:02,828 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:01:02,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:02,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:02,830 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:02,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-14 03:01:02,957 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:01:02,957 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:01:02,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-14 03:01:02,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-14 03:01:03,070 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:01:03,227 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-14 03:01:03,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122688202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:01:03,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2049105728] [2024-11-14 03:01:03,229 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:01:03,229 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:01:03,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:01:03,230 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:01:03,230 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:01:04,106 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:01:04,158 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:01:24,743 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2160#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_20| Int) (|v_ULTIMATE.start_main_~ret5~0#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_20| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_20| |v_ULTIMATE.start_main_~ret~1#1_20|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_20| |v_ULTIMATE.start_main_~ret5~0#1_22|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (or (and (exists ((|v_#memory_int_83| (Array Int (Array Int Int)))) (= (store |v_#memory_int_83| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_83| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))) |#memory_int|)) (exists ((v_mapavg_~ret~0_143 Int)) (and (or (and (or (= (mod v_mapavg_~ret~0_143 10000) 0) (< 0 (+ v_mapavg_~ret~0_143 1))) (= |v_ULTIMATE.start_main_~ret5~0#1_22| (mod (div v_mapavg_~ret~0_143 10000) 4294967296))) (and (not (= (mod v_mapavg_~ret~0_143 10000) 0)) (= (mod (+ (div v_mapavg_~ret~0_143 10000) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296)) (<= (+ v_mapavg_~ret~0_143 1) 0)) (and (= (mod (+ (div v_mapavg_~ret~0_143 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|) (not (= (mod v_mapavg_~ret~0_143 10000) 0)) (<= (+ v_mapavg_~ret~0_143 1) 0))) (<= (mod (div v_mapavg_~ret~0_143 10000) 4294967296) 2147483647)))) (and (exists ((|v_#memory_int_83| (Array Int (Array Int Int)))) (= (store |v_#memory_int_83| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_83| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))) |#memory_int|)) (exists ((v_mapavg_~ret~0_143 Int)) (and (or (and (or (= (mod v_mapavg_~ret~0_143 10000) 0) (< 0 (+ v_mapavg_~ret~0_143 1))) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296) (mod (div v_mapavg_~ret~0_143 10000) 4294967296))) (and (not (= (mod v_mapavg_~ret~0_143 10000) 0)) (= (mod (+ (div v_mapavg_~ret~0_143 10000) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296)) (<= (+ v_mapavg_~ret~0_143 1) 0)) (and (= (mod (+ (div v_mapavg_~ret~0_143 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|) (not (= (mod v_mapavg_~ret~0_143 10000) 0)) (<= (+ v_mapavg_~ret~0_143 1) 0))) (<= 2147483648 (mod (div v_mapavg_~ret~0_143 10000) 4294967296)))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_20| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_20| 2147483647))))' at error location [2024-11-14 03:01:24,744 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:01:24,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:24,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 7, 7] total 35 [2024-11-14 03:01:24,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757991565] [2024-11-14 03:01:24,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:01:24,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-14 03:01:24,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:24,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-14 03:01:24,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1814, Unknown=29, NotChecked=0, Total=2256 [2024-11-14 03:01:24,747 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:01:24,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:24,837 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2024-11-14 03:01:24,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-14 03:01:24,838 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-14 03:01:24,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:24,838 INFO L225 Difference]: With dead ends: 69 [2024-11-14 03:01:24,838 INFO L226 Difference]: Without dead ends: 50 [2024-11-14 03:01:24,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 21.2s TimeCoverageRelationStatistics Valid=413, Invalid=1814, Unknown=29, NotChecked=0, Total=2256 [2024-11-14 03:01:24,840 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:24,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 76 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:24,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-14 03:01:24,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-14 03:01:24,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 45 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:01:24,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-11-14 03:01:24,853 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 56 [2024-11-14 03:01:24,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:24,853 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-11-14 03:01:24,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:01:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2024-11-14 03:01:24,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-14 03:01:24,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:24,858 INFO L215 NwaCegarLoop]: trace histogram [30, 23, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:24,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-14 03:01:25,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-14 03:01:25,058 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:25,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:25,059 INFO L85 PathProgramCache]: Analyzing trace with hash -475070480, now seen corresponding path program 6 times [2024-11-14 03:01:25,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:25,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889923526] [2024-11-14 03:01:25,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:25,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:25,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:26,049 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:01:26,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889923526] [2024-11-14 03:01:26,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889923526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:26,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [938684164] [2024-11-14 03:01:26,050 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:01:26,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:26,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:26,052 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:26,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-14 03:01:26,226 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:01:26,226 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:01:26,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-14 03:01:26,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:26,289 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:01:26,289 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:01:27,459 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:01:27,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [938684164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:01:27,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [150527720] [2024-11-14 03:01:27,462 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:01:27,463 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:01:27,464 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:01:27,464 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:01:27,464 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:01:28,336 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:01:28,380 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:01:52,886 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2886#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret~1#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_22| Int) (|v_ULTIMATE.start_main_~ret5~0#1_24| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_22| |v_ULTIMATE.start_main_~ret~1#1_22|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_22| |v_ULTIMATE.start_main_~ret5~0#1_24|))) (<= |v_ULTIMATE.start_main_~ret2~0#1_22| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_22| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483648)) (or (and (exists ((|v_#memory_int_118| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_118| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_118| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_190 Int)) (and (or (and (or (= (mod v_mapavg_~ret~0_190 10000) 0) (< 0 (+ v_mapavg_~ret~0_190 1))) (= (mod (div v_mapavg_~ret~0_190 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296))) (and (not (= (mod v_mapavg_~ret~0_190 10000) 0)) (= (mod (+ (div v_mapavg_~ret~0_190 10000) 1) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296)) (<= (+ v_mapavg_~ret~0_190 1) 0)) (and (or (= (mod v_mapavg_~ret~0_190 10000) 0) (< 0 (+ v_mapavg_~ret~0_190 1))) (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (div v_mapavg_~ret~0_190 10000) 4294967296)))) (<= 2147483648 (mod (+ (div v_mapavg_~ret~0_190 10000) 1) 4294967296))))) (and (exists ((|v_#memory_int_118| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_118| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_118| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_190 Int)) (and (<= (mod (+ (div v_mapavg_~ret~0_190 10000) 1) 4294967296) 2147483647) (or (and (or (= (mod v_mapavg_~ret~0_190 10000) 0) (< 0 (+ v_mapavg_~ret~0_190 1))) (= (mod (div v_mapavg_~ret~0_190 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296))) (and (not (= (mod v_mapavg_~ret~0_190 10000) 0)) (<= (+ v_mapavg_~ret~0_190 1) 0) (= (mod (+ (div v_mapavg_~ret~0_190 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_24|)) (and (or (= (mod v_mapavg_~ret~0_190 10000) 0) (< 0 (+ v_mapavg_~ret~0_190 1))) (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod (div v_mapavg_~ret~0_190 10000) 4294967296)))))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_22| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_22| 2147483648)))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:01:52,887 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:01:52,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:01:52,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 26] total 51 [2024-11-14 03:01:52,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009581447] [2024-11-14 03:01:52,888 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:01:52,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-14 03:01:52,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:01:52,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-14 03:01:52,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1323, Invalid=2685, Unknown=24, NotChecked=0, Total=4032 [2024-11-14 03:01:52,891 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand has 51 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:01:53,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:01:53,030 INFO L93 Difference]: Finished difference Result 100 states and 132 transitions. [2024-11-14 03:01:53,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-14 03:01:53,031 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 75 [2024-11-14 03:01:53,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:01:53,032 INFO L225 Difference]: With dead ends: 100 [2024-11-14 03:01:53,032 INFO L226 Difference]: Without dead ends: 75 [2024-11-14 03:01:53,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1061 ImplicationChecksByTransitivity, 26.0s TimeCoverageRelationStatistics Valid=1323, Invalid=2685, Unknown=24, NotChecked=0, Total=4032 [2024-11-14 03:01:53,035 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-14 03:01:53,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-14 03:01:53,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-14 03:01:53,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-14 03:01:53,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.042857142857143) internal successors, (73), 70 states have internal predecessors, (73), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:01:53,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 79 transitions. [2024-11-14 03:01:53,044 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 79 transitions. Word has length 75 [2024-11-14 03:01:53,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:01:53,044 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 79 transitions. [2024-11-14 03:01:53,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 1.2745098039215685) internal successors, (65), 51 states have internal predecessors, (65), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:01:53,045 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 79 transitions. [2024-11-14 03:01:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-14 03:01:53,046 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:01:53,047 INFO L215 NwaCegarLoop]: trace histogram [48, 30, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:01:53,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-14 03:01:53,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:53,252 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:01:53,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:01:53,252 INFO L85 PathProgramCache]: Analyzing trace with hash 318410072, now seen corresponding path program 7 times [2024-11-14 03:01:53,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:01:53,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646060716] [2024-11-14 03:01:53,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:01:53,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:01:53,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:56,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:01:56,588 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:01:56,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646060716] [2024-11-14 03:01:56,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646060716] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:01:56,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639295133] [2024-11-14 03:01:56,588 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:01:56,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:01:56,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:01:56,591 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:01:56,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-14 03:01:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:01:56,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-14 03:01:56,874 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:01:56,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:01:56,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1713 backedges. 0 proven. 1176 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:02:00,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639295133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:02:00,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1372884555] [2024-11-14 03:02:00,761 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:02:00,761 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:02:00,761 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:02:00,761 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:02:00,761 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:02:01,100 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:02:01,120 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:02:27,232 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3924#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_24| Int) (|v_ULTIMATE.start_main_~ret~1#1_24| Int) (|v_ULTIMATE.start_main_~ret5~0#1_26| Int)) (and (or (and (exists ((v_mapavg_~ret~0_237 Int)) (and (not (= (mod v_mapavg_~ret~0_237 10000) 0)) (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296) (mod (+ (div v_mapavg_~ret~0_237 10000) 1) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_26| (mod (+ (div v_mapavg_~ret~0_237 10000) 1) 4294967296))) (<= (+ v_mapavg_~ret~0_237 1) 0))) (exists ((|v_#memory_int_178| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_178| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_178| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996)))))) (and (exists ((v_mapavg_~ret~0_237 Int)) (and (or (= (mod v_mapavg_~ret~0_237 10000) 0) (< 0 (+ v_mapavg_~ret~0_237 1))) (or (= (mod (div v_mapavg_~ret~0_237 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296)) (= (mod (div v_mapavg_~ret~0_237 10000) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_26|)))) (exists ((|v_#memory_int_178| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_178| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_178| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_24| |v_ULTIMATE.start_main_~ret5~0#1_26|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_24| |v_ULTIMATE.start_main_~ret~1#1_24|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_24| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_24| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:02:27,232 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:02:27,232 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:02:27,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50, 51] total 101 [2024-11-14 03:02:27,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411502373] [2024-11-14 03:02:27,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:02:27,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2024-11-14 03:02:27,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:02:27,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2024-11-14 03:02:27,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5104, Invalid=7764, Unknown=14, NotChecked=0, Total=12882 [2024-11-14 03:02:27,240 INFO L87 Difference]: Start difference. First operand 75 states and 79 transitions. Second operand has 101 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 101 states have internal predecessors, (115), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:02:27,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:02:27,479 INFO L93 Difference]: Finished difference Result 150 states and 207 transitions. [2024-11-14 03:02:27,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2024-11-14 03:02:27,480 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 101 states have internal predecessors, (115), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 100 [2024-11-14 03:02:27,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:02:27,482 INFO L225 Difference]: With dead ends: 150 [2024-11-14 03:02:27,482 INFO L226 Difference]: Without dead ends: 125 [2024-11-14 03:02:27,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2145 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=5104, Invalid=7764, Unknown=14, NotChecked=0, Total=12882 [2024-11-14 03:02:27,487 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:02:27,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:02:27,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-14 03:02:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2024-11-14 03:02:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 120 states have (on average 1.025) internal successors, (123), 120 states have internal predecessors, (123), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:02:27,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 129 transitions. [2024-11-14 03:02:27,511 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 129 transitions. Word has length 100 [2024-11-14 03:02:27,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:02:27,511 INFO L471 AbstractCegarLoop]: Abstraction has 125 states and 129 transitions. [2024-11-14 03:02:27,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 1.1386138613861385) internal successors, (115), 101 states have internal predecessors, (115), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:02:27,512 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 129 transitions. [2024-11-14 03:02:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-14 03:02:27,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:02:27,514 INFO L215 NwaCegarLoop]: trace histogram [98, 30, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:02:27,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-14 03:02:27,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-14 03:02:27,715 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:02:27,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:02:27,715 INFO L85 PathProgramCache]: Analyzing trace with hash -946616232, now seen corresponding path program 8 times [2024-11-14 03:02:27,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:02:27,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569536549] [2024-11-14 03:02:27,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:02:27,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:02:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:02:36,547 INFO L134 CoverageAnalysis]: Checked inductivity of 5388 backedges. 0 proven. 4851 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-14 03:02:36,548 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:02:36,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569536549] [2024-11-14 03:02:36,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569536549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:02:36,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478474876] [2024-11-14 03:02:36,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:02:36,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:02:36,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:02:36,550 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:02:36,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-14 03:02:36,821 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-14 03:02:36,821 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:02:36,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-14 03:02:36,828 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:02:37,034 INFO L134 CoverageAnalysis]: Checked inductivity of 5388 backedges. 246 proven. 3 refuted. 0 times theorem prover too weak. 5139 trivial. 0 not checked. [2024-11-14 03:02:37,034 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:02:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5388 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5385 trivial. 0 not checked. [2024-11-14 03:02:37,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478474876] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:02:37,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1733831212] [2024-11-14 03:02:37,268 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:02:37,268 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:02:37,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:02:37,268 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:02:37,268 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:02:38,493 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:02:38,541 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:03:03,831 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5468#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_28| Int) (|v_ULTIMATE.start_main_~ret2~0#1_26| Int) (|v_ULTIMATE.start_main_~ret~1#1_25| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483648)) (or (and (exists ((|v_#memory_int_189| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_189| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_189| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_284 Int)) (and (<= 2147483648 (mod (div v_mapavg_~ret~0_284 10000) 4294967296)) (or (and (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod (div v_mapavg_~ret~0_284 10000) 4294967296)) (or (= (mod v_mapavg_~ret~0_284 10000) 0) (< 0 (+ v_mapavg_~ret~0_284 1)))) (and (not (= (mod v_mapavg_~ret~0_284 10000) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod (+ (div v_mapavg_~ret~0_284 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_284 1) 0)) (and (= (mod (+ (div v_mapavg_~ret~0_284 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_28|) (not (= (mod v_mapavg_~ret~0_284 10000) 0)) (<= (+ v_mapavg_~ret~0_284 1) 0)))))) (and (exists ((|v_#memory_int_189| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_189| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_189| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_284 Int)) (and (or (and (= |v_ULTIMATE.start_main_~ret5~0#1_28| (mod (div v_mapavg_~ret~0_284 10000) 4294967296)) (or (= (mod v_mapavg_~ret~0_284 10000) 0) (< 0 (+ v_mapavg_~ret~0_284 1)))) (and (not (= (mod v_mapavg_~ret~0_284 10000) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod (+ (div v_mapavg_~ret~0_284 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_284 1) 0)) (and (= (mod (+ (div v_mapavg_~ret~0_284 10000) 1) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_28|) (not (= (mod v_mapavg_~ret~0_284 10000) 0)) (<= (+ v_mapavg_~ret~0_284 1) 0))) (<= (mod (div v_mapavg_~ret~0_284 10000) 4294967296) 2147483647))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_28| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_26| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_25| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_26| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_25| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_25| |v_ULTIMATE.start_main_~ret5~0#1_28|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_26| |v_ULTIMATE.start_main_~ret~1#1_25|))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:03:03,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:03:03,832 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:03:03,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 5, 5] total 107 [2024-11-14 03:03:03,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610772889] [2024-11-14 03:03:03,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:03:03,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2024-11-14 03:03:03,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:03:03,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2024-11-14 03:03:03,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5125, Invalid=9128, Unknown=27, NotChecked=0, Total=14280 [2024-11-14 03:03:03,839 INFO L87 Difference]: Start difference. First operand 125 states and 129 transitions. Second operand has 107 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 107 states have internal predecessors, (125), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:03:04,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:03:04,103 INFO L93 Difference]: Finished difference Result 155 states and 167 transitions. [2024-11-14 03:03:04,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2024-11-14 03:03:04,104 INFO L78 Accepts]: Start accepts. Automaton has has 107 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 107 states have internal predecessors, (125), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 150 [2024-11-14 03:03:04,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:03:04,105 INFO L225 Difference]: With dead ends: 155 [2024-11-14 03:03:04,106 INFO L226 Difference]: Without dead ends: 130 [2024-11-14 03:03:04,109 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1985 ImplicationChecksByTransitivity, 30.8s TimeCoverageRelationStatistics Valid=5125, Invalid=9128, Unknown=27, NotChecked=0, Total=14280 [2024-11-14 03:03:04,110 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-14 03:03:04,110 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 115 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-14 03:03:04,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2024-11-14 03:03:04,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2024-11-14 03:03:04,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.024) internal successors, (128), 125 states have internal predecessors, (128), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:03:04,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 134 transitions. [2024-11-14 03:03:04,124 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 134 transitions. Word has length 150 [2024-11-14 03:03:04,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:03:04,124 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 134 transitions. [2024-11-14 03:03:04,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.1682242990654206) internal successors, (125), 107 states have internal predecessors, (125), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:03:04,125 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 134 transitions. [2024-11-14 03:03:04,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-14 03:03:04,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:03:04,127 INFO L215 NwaCegarLoop]: trace histogram [99, 30, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:03:04,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-14 03:03:04,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-14 03:03:04,328 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:03:04,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:03:04,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1338367216, now seen corresponding path program 9 times [2024-11-14 03:03:04,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:03:04,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148004440] [2024-11-14 03:03:04,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:03:04,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:03:04,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:03:15,097 INFO L134 CoverageAnalysis]: Checked inductivity of 5505 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:03:15,097 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:03:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148004440] [2024-11-14 03:03:15,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148004440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:03:15,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2017165780] [2024-11-14 03:03:15,098 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:03:15,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:03:15,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:03:15,100 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:03:15,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-14 03:03:15,574 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:03:15,575 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:03:15,581 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-11-14 03:03:15,586 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:03:15,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5505 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:03:15,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:03:35,588 INFO L134 CoverageAnalysis]: Checked inductivity of 5505 backedges. 0 proven. 4950 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:03:35,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2017165780] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:03:35,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1466753839] [2024-11-14 03:03:35,590 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:03:35,590 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:03:35,590 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:03:35,590 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:03:35,590 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:03:35,874 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:03:35,916 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:04:01,844 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7158#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret5~0#1_30| Int) (|v_ULTIMATE.start_main_~ret2~0#1_28| Int) (|v_ULTIMATE.start_main_~ret~1#1_27| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_27| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_30| 2147483648)) (or (and (exists ((|v_#memory_int_304| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_304| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_304| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_331 Int)) (and (<= (+ v_mapavg_~ret~0_331 1) 0) (or (= |v_ULTIMATE.start_main_~ret5~0#1_30| (mod (+ (div v_mapavg_~ret~0_331 10000) 1) 4294967296)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_30| 4294967296) (mod (+ (div v_mapavg_~ret~0_331 10000) 1) 4294967296))) (not (= (mod v_mapavg_~ret~0_331 10000) 0))))) (and (exists ((|v_#memory_int_304| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_304| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_304| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_331 Int)) (and (or (= |v_ULTIMATE.start_main_~ret5~0#1_30| (mod (div v_mapavg_~ret~0_331 10000) 4294967296)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_30| 4294967296) (mod (div v_mapavg_~ret~0_331 10000) 4294967296))) (or (= (mod v_mapavg_~ret~0_331 10000) 0) (< 0 (+ v_mapavg_~ret~0_331 1))))))) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_28| |v_ULTIMATE.start_main_~ret~1#1_27|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_27| |v_ULTIMATE.start_main_~ret5~0#1_30|))) (<= |v_ULTIMATE.start_main_~ret5~0#1_30| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_28| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_27| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:04:01,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:04:01,844 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:04:01,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 101, 102] total 203 [2024-11-14 03:04:01,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859534295] [2024-11-14 03:04:01,845 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:04:01,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2024-11-14 03:04:01,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:04:01,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2024-11-14 03:04:01,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20557, Invalid=25870, Unknown=13, NotChecked=0, Total=46440 [2024-11-14 03:04:01,857 INFO L87 Difference]: Start difference. First operand 130 states and 134 transitions. Second operand has 203 states, 203 states have (on average 1.0689655172413792) internal successors, (217), 203 states have internal predecessors, (217), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:04:02,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:04:02,643 INFO L93 Difference]: Finished difference Result 260 states and 368 transitions. [2024-11-14 03:04:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-14 03:04:02,644 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 1.0689655172413792) internal successors, (217), 203 states have internal predecessors, (217), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 155 [2024-11-14 03:04:02,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:04:02,647 INFO L225 Difference]: With dead ends: 260 [2024-11-14 03:04:02,648 INFO L226 Difference]: Without dead ends: 231 [2024-11-14 03:04:02,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 351 SyntacticMatches, 0 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 4339 ImplicationChecksByTransitivity, 52.5s TimeCoverageRelationStatistics Valid=20557, Invalid=25870, Unknown=13, NotChecked=0, Total=46440 [2024-11-14 03:04:02,665 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-14 03:04:02,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-14 03:04:02,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-14 03:04:02,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2024-11-14 03:04:02,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 226 states have (on average 1.0132743362831858) internal successors, (229), 226 states have internal predecessors, (229), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:04:02,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 235 transitions. [2024-11-14 03:04:02,723 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 235 transitions. Word has length 155 [2024-11-14 03:04:02,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:04:02,727 INFO L471 AbstractCegarLoop]: Abstraction has 231 states and 235 transitions. [2024-11-14 03:04:02,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 1.0689655172413792) internal successors, (217), 203 states have internal predecessors, (217), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:04:02,728 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 235 transitions. [2024-11-14 03:04:02,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2024-11-14 03:04:02,737 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:04:02,737 INFO L215 NwaCegarLoop]: trace histogram [200, 30, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:04:02,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-14 03:04:02,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-14 03:04:02,938 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:04:02,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:04:02,938 INFO L85 PathProgramCache]: Analyzing trace with hash -2086523816, now seen corresponding path program 10 times [2024-11-14 03:04:02,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:04:02,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095005805] [2024-11-14 03:04:02,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:04:02,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:04:03,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20655 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:04:35,849 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:04:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095005805] [2024-11-14 03:04:35,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095005805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:04:35,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [844092021] [2024-11-14 03:04:35,850 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-14 03:04:35,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:04:35,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:04:35,855 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:04:35,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-14 03:04:36,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:04:36,610 INFO L255 TraceCheckSpWp]: Trace formula consists of 2112 conjuncts, 202 conjuncts are in the unsatisfiable core [2024-11-14 03:04:36,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:04:37,081 INFO L134 CoverageAnalysis]: Checked inductivity of 20655 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:04:37,081 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:05:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 20655 backedges. 0 proven. 20100 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:05:39,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [844092021] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:05:39,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1982495294] [2024-11-14 03:05:39,853 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:05:39,853 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:05:39,853 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:05:39,853 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:05:39,854 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:05:40,884 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:05:40,910 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:06:07,788 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10068#(and (exists ((|v_ULTIMATE.start_main_~ret5~0#1_32| Int) (|v_ULTIMATE.start_main_~ret~1#1_29| Int) (|v_ULTIMATE.start_main_~ret2~0#1_30| Int)) (and (or (and (exists ((v_mapavg_~ret~0_378 Int)) (and (<= 2147483648 (mod (div v_mapavg_~ret~0_378 10000) 4294967296)) (or (and (not (= (mod v_mapavg_~ret~0_378 10000) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_32| (mod (+ (div v_mapavg_~ret~0_378 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_378 1) 0)) (and (or (= (mod v_mapavg_~ret~0_378 10000) 0) (< 0 (+ v_mapavg_~ret~0_378 1))) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_32| 4294967296) (mod (div v_mapavg_~ret~0_378 10000) 4294967296))) (and (not (= (mod v_mapavg_~ret~0_378 10000) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_32| 4294967296) (mod (+ (div v_mapavg_~ret~0_378 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_378 1) 0))))) (exists ((|v_#memory_int_520| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_520| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_520| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996)))))) (and (exists ((v_mapavg_~ret~0_378 Int)) (and (or (and (not (= (mod v_mapavg_~ret~0_378 10000) 0)) (= |v_ULTIMATE.start_main_~ret5~0#1_32| (mod (+ (div v_mapavg_~ret~0_378 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_378 1) 0)) (and (or (= (mod v_mapavg_~ret~0_378 10000) 0) (< 0 (+ v_mapavg_~ret~0_378 1))) (= |v_ULTIMATE.start_main_~ret5~0#1_32| (mod (div v_mapavg_~ret~0_378 10000) 4294967296))) (and (not (= (mod v_mapavg_~ret~0_378 10000) 0)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_32| 4294967296) (mod (+ (div v_mapavg_~ret~0_378 10000) 1) 4294967296)) (<= (+ v_mapavg_~ret~0_378 1) 0))) (<= (mod (div v_mapavg_~ret~0_378 10000) 4294967296) 2147483647))) (exists ((|v_#memory_int_520| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_520| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_520| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_30| |v_ULTIMATE.start_main_~ret~1#1_29|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_29| |v_ULTIMATE.start_main_~ret5~0#1_32|))) (<= |v_ULTIMATE.start_main_~ret~1#1_29| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_32| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_30| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_32| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_30| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_29| 2147483648)))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-14 03:06:07,789 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:06:07,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:06:07,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [203, 202, 203] total 405 [2024-11-14 03:06:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1470193832] [2024-11-14 03:06:07,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:06:07,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 405 states [2024-11-14 03:06:07,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:06:07,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 405 interpolants. [2024-11-14 03:06:07,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81864, Invalid=92430, Unknown=12, NotChecked=0, Total=174306 [2024-11-14 03:06:07,809 INFO L87 Difference]: Start difference. First operand 231 states and 235 transitions. Second operand has 405 states, 405 states have (on average 1.0345679012345679) internal successors, (419), 405 states have internal predecessors, (419), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:06:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:06:10,365 INFO L93 Difference]: Finished difference Result 462 states and 671 transitions. [2024-11-14 03:06:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 404 states. [2024-11-14 03:06:10,367 INFO L78 Accepts]: Start accepts. Automaton has has 405 states, 405 states have (on average 1.0345679012345679) internal successors, (419), 405 states have internal predecessors, (419), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 256 [2024-11-14 03:06:10,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:06:10,370 INFO L225 Difference]: With dead ends: 462 [2024-11-14 03:06:10,371 INFO L226 Difference]: Without dead ends: 433 [2024-11-14 03:06:10,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 416 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 8682 ImplicationChecksByTransitivity, 112.4s TimeCoverageRelationStatistics Valid=81864, Invalid=92430, Unknown=12, NotChecked=0, Total=174306 [2024-11-14 03:06:10,384 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-14 03:06:10,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-14 03:06:10,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-14 03:06:10,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2024-11-14 03:06:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 428 states have (on average 1.0070093457943925) internal successors, (431), 428 states have internal predecessors, (431), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:06:10,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 437 transitions. [2024-11-14 03:06:10,412 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 437 transitions. Word has length 256 [2024-11-14 03:06:10,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:06:10,413 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 437 transitions. [2024-11-14 03:06:10,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 405 states, 405 states have (on average 1.0345679012345679) internal successors, (419), 405 states have internal predecessors, (419), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-14 03:06:10,414 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 437 transitions. [2024-11-14 03:06:10,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-11-14 03:06:10,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:06:10,424 INFO L215 NwaCegarLoop]: trace histogram [402, 30, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:06:10,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-14 03:06:10,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:06:10,628 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:06:10,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:06:10,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1969392472, now seen corresponding path program 11 times [2024-11-14 03:06:10,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:06:10,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267904321] [2024-11-14 03:06:10,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:06:10,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:06:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:08:34,140 INFO L134 CoverageAnalysis]: Checked inductivity of 81558 backedges. 0 proven. 81003 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2024-11-14 03:08:34,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:08:34,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267904321] [2024-11-14 03:08:34,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267904321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:08:34,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [900402541] [2024-11-14 03:08:34,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-14 03:08:34,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:08:34,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:08:34,145 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:08:34,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-14 03:08:35,067 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-14 03:08:35,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:08:35,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-14 03:08:35,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:08:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 81558 backedges. 246 proven. 21 refuted. 0 times theorem prover too weak. 81291 trivial. 0 not checked. [2024-11-14 03:08:37,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-14 03:08:39,089 INFO L134 CoverageAnalysis]: Checked inductivity of 81558 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 81537 trivial. 0 not checked. [2024-11-14 03:08:39,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [900402541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-14 03:08:39,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [564062759] [2024-11-14 03:08:39,092 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-14 03:08:39,092 INFO L166 IcfgInterpreter]: Building call graph [2024-11-14 03:08:39,092 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-14 03:08:39,092 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-14 03:08:39,092 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-14 03:08:39,538 INFO L197 IcfgInterpreter]: Interpreting procedure mapavg with input of size 10 for LOIs [2024-11-14 03:08:39,620 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-14 03:09:12,048 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15012#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_30| Int) (|v_ULTIMATE.start_main_~ret5~0#1_34| Int) (|v_ULTIMATE.start_main_~ret2~0#1_32| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_32| 2147483647) (or (and (exists ((|v_#memory_int_535| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_535| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_535| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapavg_~ret~0_425 Int)) (and (or (= (mod (div v_mapavg_~ret~0_425 10000) 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_34| 4294967296)) (= (mod (div v_mapavg_~ret~0_425 10000) 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_34|)) (or (< 0 (+ v_mapavg_~ret~0_425 1)) (= (mod v_mapavg_~ret~0_425 10000) 0))))) (and (exists ((v_mapavg_~ret~0_425 Int)) (and (not (= (mod v_mapavg_~ret~0_425 10000) 0)) (<= (+ v_mapavg_~ret~0_425 1) 0) (or (= (+ |v_ULTIMATE.start_main_~ret5~0#1_34| 4294967296) (mod (+ (div v_mapavg_~ret~0_425 10000) 1) 4294967296)) (= |v_ULTIMATE.start_main_~ret5~0#1_34| (mod (+ (div v_mapavg_~ret~0_425 10000) 1) 4294967296))))) (exists ((|v_#memory_int_535| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_535| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_535| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_34| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_30| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_34| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_32| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_30| |v_ULTIMATE.start_main_~ret5~0#1_34|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_32| |v_ULTIMATE.start_main_~ret~1#1_30|))) (<= |v_ULTIMATE.start_main_~ret~1#1_30| 2147483647))))' at error location [2024-11-14 03:09:12,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-14 03:09:12,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-14 03:09:12,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [405, 9, 9] total 419 [2024-11-14 03:09:12,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124387224] [2024-11-14 03:09:12,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-14 03:09:12,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 419 states [2024-11-14 03:09:12,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 03:09:12,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 419 interpolants. [2024-11-14 03:09:12,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81977, Invalid=104187, Unknown=28, NotChecked=0, Total=186192 [2024-11-14 03:09:12,072 INFO L87 Difference]: Start difference. First operand 433 states and 437 transitions. Second operand has 419 states, 419 states have (on average 1.0429594272076372) internal successors, (437), 419 states have internal predecessors, (437), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:09:15,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 03:09:15,076 INFO L93 Difference]: Finished difference Result 471 states and 487 transitions. [2024-11-14 03:09:15,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 419 states. [2024-11-14 03:09:15,078 INFO L78 Accepts]: Start accepts. Automaton has has 419 states, 419 states have (on average 1.0429594272076372) internal successors, (437), 419 states have internal predecessors, (437), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 458 [2024-11-14 03:09:15,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 03:09:15,082 INFO L225 Difference]: With dead ends: 471 [2024-11-14 03:09:15,083 INFO L226 Difference]: Without dead ends: 442 [2024-11-14 03:09:15,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1777 GetRequests, 1347 SyntacticMatches, 0 SemanticMatches, 430 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11129 ImplicationChecksByTransitivity, 139.6s TimeCoverageRelationStatistics Valid=81977, Invalid=104187, Unknown=28, NotChecked=0, Total=186192 [2024-11-14 03:09:15,099 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-14 03:09:15,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 114 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-14 03:09:15,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2024-11-14 03:09:15,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2024-11-14 03:09:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 437 states have (on average 1.0068649885583525) internal successors, (440), 437 states have internal predecessors, (440), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-14 03:09:15,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 446 transitions. [2024-11-14 03:09:15,130 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 446 transitions. Word has length 458 [2024-11-14 03:09:15,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 03:09:15,131 INFO L471 AbstractCegarLoop]: Abstraction has 442 states and 446 transitions. [2024-11-14 03:09:15,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 419 states, 419 states have (on average 1.0429594272076372) internal successors, (437), 419 states have internal predecessors, (437), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-14 03:09:15,133 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 446 transitions. [2024-11-14 03:09:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-14 03:09:15,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 03:09:15,144 INFO L215 NwaCegarLoop]: trace histogram [403, 30, 14, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 03:09:15,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-14 03:09:15,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:09:15,345 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 03:09:15,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 03:09:15,346 INFO L85 PathProgramCache]: Analyzing trace with hash 978776816, now seen corresponding path program 12 times [2024-11-14 03:09:15,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 03:09:15,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490132418] [2024-11-14 03:09:15,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 03:09:15,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 03:09:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 03:11:45,785 INFO L134 CoverageAnalysis]: Checked inductivity of 82045 backedges. 0 proven. 81406 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-14 03:11:45,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 03:11:45,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490132418] [2024-11-14 03:11:45,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490132418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 03:11:45,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86001534] [2024-11-14 03:11:45,786 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-14 03:11:45,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 03:11:45,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 03:11:45,788 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 03:11:45,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7672ade8-85b9-4650-9d8c-56a73832dd6b/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-14 03:11:47,384 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-14 03:11:47,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-14 03:11:47,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 3995 conjuncts, 405 conjuncts are in the unsatisfiable core [2024-11-14 03:11:47,451 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 03:11:48,412 INFO L134 CoverageAnalysis]: Checked inductivity of 82045 backedges. 0 proven. 81406 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2024-11-14 03:11:48,412 INFO L311 TraceCheckSpWp]: Computing backward predicates...