./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapsum4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapsum4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d00a4e4676c9051eb624340f361fec0d607bdb13ab2955b117561fab63156730 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:16:26,767 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:16:26,871 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 07:16:26,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:16:26,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:16:26,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:16:26,920 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:16:26,921 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:16:26,922 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:16:26,922 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:16:26,923 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:16:26,923 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:16:26,924 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:16:26,924 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:16:26,926 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:16:26,927 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:16:26,930 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:16:26,931 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:16:26,931 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:16:26,932 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:16:26,932 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:16:26,933 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:16:26,938 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:16:26,938 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:16:26,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:16:26,939 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:16:26,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:16:26,940 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:16:26,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:16:26,941 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:16:26,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:16:26,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:16:26,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:16:26,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:16:26,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:16:26,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:16:26,947 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:16:26,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:16:26,948 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:16:26,948 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:16:26,949 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:16:26,949 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:16:26,950 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:16:26,951 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:16:26,951 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:16:26,952 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:16:26,952 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:16:26,952 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d00a4e4676c9051eb624340f361fec0d607bdb13ab2955b117561fab63156730 [2024-11-09 07:16:27,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:16:27,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:16:27,352 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:16:27,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:16:27,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:16:27,359 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-crafted/mapsum4.i Unable to find full path for "g++" [2024-11-09 07:16:29,982 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:16:30,231 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:16:30,232 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/sv-benchmarks/c/array-crafted/mapsum4.i [2024-11-09 07:16:30,243 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/data/2f8821095/666e18e60e834f2287455fba268f6ee8/FLAG9a0238bfd [2024-11-09 07:16:30,592 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/data/2f8821095/666e18e60e834f2287455fba268f6ee8 [2024-11-09 07:16:30,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:16:30,598 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:16:30,599 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:30,600 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:16:30,606 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:16:30,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:30,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ffcb8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30, skipping insertion in model container [2024-11-09 07:16:30,609 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:30,643 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:16:30,909 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_5316cf04-4c13-4c0f-8973-31b43d32e94c/sv-benchmarks/c/array-crafted/mapsum4.i[1318,1331] [2024-11-09 07:16:30,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:30,927 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:16:30,962 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_5316cf04-4c13-4c0f-8973-31b43d32e94c/sv-benchmarks/c/array-crafted/mapsum4.i[1318,1331] [2024-11-09 07:16:30,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:16:30,985 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:16:30,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30 WrapperNode [2024-11-09 07:16:30,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:16:30,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:30,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:16:30,987 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:16:30,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,004 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,025 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-09 07:16:31,026 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:16:31,027 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:16:31,027 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:16:31,027 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:16:31,037 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,041 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,041 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,048 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,056 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,059 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:16:31,060 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:16:31,060 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:16:31,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:16:31,062 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (1/1) ... [2024-11-09 07:16:31,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:16:31,098 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:31,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:16:31,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:16:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:16:31,161 INFO L130 BoogieDeclarations]: Found specification of procedure mapsum [2024-11-09 07:16:31,162 INFO L138 BoogieDeclarations]: Found implementation of procedure mapsum [2024-11-09 07:16:31,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:16:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:16:31,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:16:31,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:16:31,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:16:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:16:31,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:16:31,256 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:16:31,258 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:16:31,551 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-09 07:16:31,551 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:16:31,590 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:16:31,590 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:16:31,591 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:16:31 BoogieIcfgContainer [2024-11-09 07:16:31,591 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:16:31,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:16:31,595 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:16:31,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:16:31,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:16:30" (1/3) ... [2024-11-09 07:16:31,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3bc726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:16:31, skipping insertion in model container [2024-11-09 07:16:31,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:16:30" (2/3) ... [2024-11-09 07:16:31,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f3bc726 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:16:31, skipping insertion in model container [2024-11-09 07:16:31,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:16:31" (3/3) ... [2024-11-09 07:16:31,605 INFO L112 eAbstractionObserver]: Analyzing ICFG mapsum4.i [2024-11-09 07:16:31,632 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:16:31,633 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:16:31,717 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:16:31,726 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;@29785040, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:16:31,726 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:16:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:31,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-09 07:16:31,740 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:31,741 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:31,741 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:31,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:31,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1043786021, now seen corresponding path program 1 times [2024-11-09 07:16:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:31,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90118989] [2024-11-09 07:16:31,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:31,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:32,397 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:16:32,399 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:32,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90118989] [2024-11-09 07:16:32,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90118989] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:32,402 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:16:32,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:16:32,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285591388] [2024-11-09 07:16:32,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:32,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:32,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:32,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:32,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:32,464 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:32,553 INFO L93 Difference]: Finished difference Result 45 states and 61 transitions. [2024-11-09 07:16:32,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:32,557 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2024-11-09 07:16:32,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:32,567 INFO L225 Difference]: With dead ends: 45 [2024-11-09 07:16:32,568 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 07:16:32,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:16:32,582 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 1 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:32,585 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 47 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:32,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 07:16:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 07:16:32,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 18 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:32,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2024-11-09 07:16:32,646 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 25 [2024-11-09 07:16:32,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:32,647 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2024-11-09 07:16:32,648 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 07:16:32,648 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2024-11-09 07:16:32,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 07:16:32,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:32,651 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:32,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:16:32,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:32,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:32,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1205847946, now seen corresponding path program 1 times [2024-11-09 07:16:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:32,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494969765] [2024-11-09 07:16:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:32,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:16:32,906 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:32,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494969765] [2024-11-09 07:16:32,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494969765] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:32,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144101016] [2024-11-09 07:16:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:32,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:32,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:32,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:32,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:16:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:33,094 INFO L255 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:16:33,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:33,145 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 07:16:33,146 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:33,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144101016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:33,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:33,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 07:16:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837160203] [2024-11-09 07:16:33,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:33,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:33,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:33,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:33,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:33,158 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:16:33,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:33,214 INFO L93 Difference]: Finished difference Result 41 states and 57 transitions. [2024-11-09 07:16:33,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:33,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 27 [2024-11-09 07:16:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:33,219 INFO L225 Difference]: With dead ends: 41 [2024-11-09 07:16:33,219 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 07:16:33,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:33,225 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:33,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 45 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:16:33,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 07:16:33,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 07:16:33,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.3) internal successors, (26), 20 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2024-11-09 07:16:33,239 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 27 [2024-11-09 07:16:33,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:33,241 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2024-11-09 07:16:33,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:16:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-11-09 07:16:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-09 07:16:33,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:33,244 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:33,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:16:33,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:33,447 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:33,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:33,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1219304871, now seen corresponding path program 1 times [2024-11-09 07:16:33,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:33,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059512348] [2024-11-09 07:16:33,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:33,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:33,646 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-09 07:16:33,647 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:33,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059512348] [2024-11-09 07:16:33,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059512348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:33,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277898003] [2024-11-09 07:16:33,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:33,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:33,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:33,651 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:33,654 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:16:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:33,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:16:33,779 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 07:16:33,800 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:16:33,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277898003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:16:33,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:16:33,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 07:16:33,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322667533] [2024-11-09 07:16:33,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:16:33,803 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:16:33,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:33,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:16:33,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:33,805 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:16:33,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:33,839 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2024-11-09 07:16:33,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:16:33,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-11-09 07:16:33,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:33,841 INFO L225 Difference]: With dead ends: 40 [2024-11-09 07:16:33,842 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 07:16:33,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 07:16:33,844 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 1 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:33,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 44 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:16:33,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 07:16:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 07:16:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 22 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2024-11-09 07:16:33,854 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 33 [2024-11-09 07:16:33,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:33,856 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2024-11-09 07:16:33,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 07:16:33,857 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2024-11-09 07:16:33,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-09 07:16:33,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:33,859 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:33,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:16:34,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:34,061 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:34,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2011294562, now seen corresponding path program 1 times [2024-11-09 07:16:34,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:34,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525269463] [2024-11-09 07:16:34,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:34,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:34,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:34,207 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:16:34,208 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:34,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525269463] [2024-11-09 07:16:34,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525269463] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:34,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098889678] [2024-11-09 07:16:34,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:34,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:34,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:34,217 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:34,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:16:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:34,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:16:34,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:34,423 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:16:34,427 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:34,504 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 07:16:34,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098889678] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:34,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1760067565] [2024-11-09 07:16:34,535 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:16:34,554 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:16:34,559 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:16:34,566 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:16:34,567 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:35,703 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:16:35,797 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:16:39,328 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '705#(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 (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) (or (and (exists ((|v_#memory_int_26| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_26| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_26| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_25 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_14| (mod v_mapsum_~ret~0_25 4294967296)))) (and (exists ((v_mapsum_~ret~0_25 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_14| 4294967296) (mod v_mapsum_~ret~0_25 4294967296))) (exists ((|v_#memory_int_26| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_26| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_26| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))))) (<= 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 [2024-11-09 07:16:39,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:16:39,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:16:39,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-09 07:16:39,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746328959] [2024-11-09 07:16:39,330 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:16:39,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:16:39,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:39,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:16:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=448, Unknown=5, NotChecked=0, Total=552 [2024-11-09 07:16:39,333 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:16:39,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:39,394 INFO L93 Difference]: Finished difference Result 54 states and 71 transitions. [2024-11-09 07:16:39,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:16:39,395 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 35 [2024-11-09 07:16:39,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:39,396 INFO L225 Difference]: With dead ends: 54 [2024-11-09 07:16:39,397 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 07:16:39,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 84 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=99, Invalid=448, Unknown=5, NotChecked=0, Total=552 [2024-11-09 07:16:39,399 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:39,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 86 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:16:39,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 07:16:39,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-09 07:16:39,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:39,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-09 07:16:39,411 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 35 [2024-11-09 07:16:39,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:39,411 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-09 07:16:39,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:16:39,412 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-09 07:16:39,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-09 07:16:39,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:39,414 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:39,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:39,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:39,618 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:39,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:39,619 INFO L85 PathProgramCache]: Analyzing trace with hash -178343603, now seen corresponding path program 2 times [2024-11-09 07:16:39,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:39,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22764735] [2024-11-09 07:16:39,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:39,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:39,748 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:16:39,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22764735] [2024-11-09 07:16:39,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22764735] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:39,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919832958] [2024-11-09 07:16:39,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:16:39,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:39,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:39,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:39,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:16:39,871 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:16:39,872 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:16:39,874 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 07:16:39,876 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:16:39,897 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:39,948 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-09 07:16:39,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919832958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:39,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2147433061] [2024-11-09 07:16:39,952 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:16:39,952 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:16:39,953 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:16:39,953 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:16:39,954 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:40,523 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:16:40,566 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:16:45,845 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1092#(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)) (or (and (exists ((v_mapsum_~ret~0_47 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_16| (mod v_mapsum_~ret~0_47 4294967296))) (exists ((|v_#memory_int_34| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996)))))) (and (exists ((|v_#memory_int_34| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_34| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_47 Int)) (= (mod v_mapsum_~ret~0_47 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 4294967296))))) (<= |v_ULTIMATE.start_main_~ret5~0#1_16| 2147483647) (<= |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 [2024-11-09 07:16:45,845 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:16:45,846 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:16:45,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-09 07:16:45,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276032712] [2024-11-09 07:16:45,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:16:45,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:16:45,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:45,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:16:45,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=448, Unknown=5, NotChecked=0, Total=552 [2024-11-09 07:16:45,851 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:16:45,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:45,914 INFO L93 Difference]: Finished difference Result 57 states and 75 transitions. [2024-11-09 07:16:45,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:16:45,915 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 41 [2024-11-09 07:16:45,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:45,917 INFO L225 Difference]: With dead ends: 57 [2024-11-09 07:16:45,917 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 07:16:45,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=99, Invalid=448, Unknown=5, NotChecked=0, Total=552 [2024-11-09 07:16:45,919 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:45,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 07:16:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 07:16:45,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.125) internal successors, (36), 32 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:45,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-09 07:16:45,932 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 41 [2024-11-09 07:16:45,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:45,932 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-09 07:16:45,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 07:16:45,935 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-09 07:16:45,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-09 07:16:45,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:45,937 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:45,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:16:46,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:46,138 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:46,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:46,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1207660858, now seen corresponding path program 3 times [2024-11-09 07:16:46,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:46,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753508209] [2024-11-09 07:16:46,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:46,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:46,327 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 196 trivial. 0 not checked. [2024-11-09 07:16:46,328 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:46,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753508209] [2024-11-09 07:16:46,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753508209] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:46,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [745115923] [2024-11-09 07:16:46,328 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:16:46,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:46,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:46,331 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:46,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:16:46,485 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:16:46,485 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:16:46,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:16:46,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 07:16:46,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:46,703 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-11-09 07:16:46,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [745115923] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:46,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [623429387] [2024-11-09 07:16:46,708 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:16:46,709 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:16:46,710 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:16:46,711 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:16:46,711 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:47,292 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:16:47,341 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:16:51,312 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1607#(and (<= 1 |#StackHeapBarrier|) (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)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483648)) (or (and (exists ((|v_#memory_int_49| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_49| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_49| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_76 Int)) (= (mod v_mapsum_~ret~0_76 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_18|))) (and (exists ((|v_#memory_int_49| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_49| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_49| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_76 Int)) (= (mod v_mapsum_~ret~0_76 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296))))) (<= |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))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:16:51,312 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:16:51,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:16:51,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 14 [2024-11-09 07:16:51,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699667040] [2024-11-09 07:16:51,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:16:51,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 07:16:51,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:51,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 07:16:51,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=776, Unknown=4, NotChecked=0, Total=930 [2024-11-09 07:16:51,316 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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) [2024-11-09 07:16:51,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:51,424 INFO L93 Difference]: Finished difference Result 78 states and 95 transitions. [2024-11-09 07:16:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 07:16:51,425 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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 59 [2024-11-09 07:16:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:51,426 INFO L225 Difference]: With dead ends: 78 [2024-11-09 07:16:51,426 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 07:16:51,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=150, Invalid=776, Unknown=4, NotChecked=0, Total=930 [2024-11-09 07:16:51,428 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:51,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 106 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 07:16:51,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 07:16:51,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 46 states have internal predecessors, (50), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 56 transitions. [2024-11-09 07:16:51,436 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 56 transitions. Word has length 59 [2024-11-09 07:16:51,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:51,436 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 56 transitions. [2024-11-09 07:16:51,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 14 states have internal predecessors, (50), 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) [2024-11-09 07:16:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 56 transitions. [2024-11-09 07:16:51,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-09 07:16:51,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:51,438 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:51,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 07:16:51,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:51,643 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:51,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:51,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1209552861, now seen corresponding path program 4 times [2024-11-09 07:16:51,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:51,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477553027] [2024-11-09 07:16:51,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:51,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:51,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:16:52,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:16:52,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477553027] [2024-11-09 07:16:52,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477553027] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:16:52,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512299168] [2024-11-09 07:16:52,179 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:16:52,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:16:52,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:16:52,181 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:16:52,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:16:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:16:52,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-09 07:16:52,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:16:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:16:52,405 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:16:52,741 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:16:52,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512299168] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:16:52,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [827647196] [2024-11-09 07:16:52,745 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:16:52,745 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:16:52,746 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:16:52,746 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:16:52,747 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:16:53,210 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:16:53,254 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:16:58,702 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2270#(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_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) (or (and (exists ((v_mapsum_~ret~0_105 Int)) (= (mod v_mapsum_~ret~0_105 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_20|)) (exists ((|v_#memory_int_71| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_71| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_71| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996)))))) (and (exists ((|v_#memory_int_71| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_71| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_71| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_105 Int)) (= (mod v_mapsum_~ret~0_105 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 4294967296))))) (<= |v_ULTIMATE.start_main_~ret~1#1_19| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_19| 2147483647) (<= 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|))))))' at error location [2024-11-09 07:16:58,702 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:16:58,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:16:58,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 25 [2024-11-09 07:16:58,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933138279] [2024-11-09 07:16:58,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:16:58,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-09 07:16:58,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:16:58,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-09 07:16:58,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=1339, Unknown=5, NotChecked=0, Total=1722 [2024-11-09 07:16:58,707 INFO L87 Difference]: Start difference. First operand 51 states and 56 transitions. Second operand has 25 states, 25 states have (on average 2.68) internal successors, (67), 25 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:16:58,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:16:58,884 INFO L93 Difference]: Finished difference Result 104 states and 125 transitions. [2024-11-09 07:16:58,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 07:16:58,884 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 25 states have internal predecessors, (67), 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 73 [2024-11-09 07:16:58,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:16:58,885 INFO L225 Difference]: With dead ends: 104 [2024-11-09 07:16:58,886 INFO L226 Difference]: Without dead ends: 75 [2024-11-09 07:16:58,887 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 747 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=378, Invalid=1339, Unknown=5, NotChecked=0, Total=1722 [2024-11-09 07:16:58,888 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 2 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:16:58,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 82 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:16:58,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-11-09 07:16:58,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-11-09 07:16:58,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 70 states have (on average 1.0571428571428572) internal successors, (74), 70 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:16:58,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2024-11-09 07:16:58,897 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 73 [2024-11-09 07:16:58,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:16:58,898 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2024-11-09 07:16:58,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.68) internal successors, (67), 25 states have internal predecessors, (67), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:16:58,898 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2024-11-09 07:16:58,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-09 07:16:58,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:16:58,900 INFO L215 NwaCegarLoop]: trace histogram [22, 22, 12, 12, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:16:58,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 07:16:59,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:16:59,104 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:16:59,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:16:59,104 INFO L85 PathProgramCache]: Analyzing trace with hash 499268121, now seen corresponding path program 5 times [2024-11-09 07:16:59,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:16:59,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750047970] [2024-11-09 07:16:59,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:16:59,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:16:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:00,106 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2024-11-09 07:17:00,106 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750047970] [2024-11-09 07:17:00,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750047970] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:00,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104362559] [2024-11-09 07:17:00,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:17:00,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:00,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:00,108 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:00,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:17:00,222 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-11-09 07:17:00,222 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:17:00,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 07:17:00,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:00,302 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 88 proven. 4 refuted. 0 times theorem prover too weak. 576 trivial. 0 not checked. [2024-11-09 07:17:00,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 668 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2024-11-09 07:17:00,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104362559] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:00,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1436465685] [2024-11-09 07:17:00,393 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:00,393 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:00,393 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:00,394 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:00,394 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:00,840 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:17:00,882 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:06,616 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3158#(and (exists ((|v_ULTIMATE.start_main_~ret~1#1_20| Int) (|v_ULTIMATE.start_main_~ret2~0#1_21| Int) (|v_ULTIMATE.start_main_~ret5~0#1_22| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483647) (or (and (exists ((|v_#memory_int_82| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_82| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_82| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_134 Int)) (= (mod v_mapsum_~ret~0_134 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_22|))) (and (exists ((v_mapsum_~ret~0_134 Int)) (= (mod v_mapsum_~ret~0_134 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296))) (exists ((|v_#memory_int_82| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_82| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_82| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_20| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_20| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_21| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret~1#1_20| |v_ULTIMATE.start_main_~ret5~0#1_22|)) (not (= |v_ULTIMATE.start_main_~ret2~0#1_21| |v_ULTIMATE.start_main_~ret~1#1_20|))))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:17:06,616 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:06,617 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:06,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 5, 5] total 31 [2024-11-09 07:17:06,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296273902] [2024-11-09 07:17:06,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:06,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 07:17:06,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:06,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 07:17:06,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=1846, Unknown=5, NotChecked=0, Total=2256 [2024-11-09 07:17:06,622 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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) [2024-11-09 07:17:06,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:06,787 INFO L93 Difference]: Finished difference Result 114 states and 131 transitions. [2024-11-09 07:17:06,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 07:17:06,789 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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 97 [2024-11-09 07:17:06,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:06,790 INFO L225 Difference]: With dead ends: 114 [2024-11-09 07:17:06,790 INFO L226 Difference]: Without dead ends: 85 [2024-11-09 07:17:06,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 267 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 767 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=405, Invalid=1846, Unknown=5, NotChecked=0, Total=2256 [2024-11-09 07:17:06,793 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:06,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 86 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:17:06,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-09 07:17:06,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-09 07:17:06,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 79 states have (on average 1.0379746835443038) internal successors, (82), 79 states have internal predecessors, (82), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:17:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2024-11-09 07:17:06,804 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 97 [2024-11-09 07:17:06,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:06,805 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2024-11-09 07:17:06,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.7096774193548385) internal successors, (84), 31 states have internal predecessors, (84), 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) [2024-11-09 07:17:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2024-11-09 07:17:06,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-09 07:17:06,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:06,807 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 12, 12, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:06,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 07:17:07,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 07:17:07,009 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:07,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:07,009 INFO L85 PathProgramCache]: Analyzing trace with hash -930209774, now seen corresponding path program 6 times [2024-11-09 07:17:07,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:07,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713591582] [2024-11-09 07:17:07,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:07,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:08,200 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:08,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713591582] [2024-11-09 07:17:08,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713591582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:08,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072948766] [2024-11-09 07:17:08,201 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:17:08,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:08,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:08,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:08,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:17:08,383 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:17:08,383 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:17:08,386 INFO L255 TraceCheckSpWp]: Trace formula consists of 471 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-09 07:17:08,390 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:08,524 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:09,743 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 529 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:09,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072948766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:09,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2099193498] [2024-11-09 07:17:09,749 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:09,749 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:09,749 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:09,749 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:09,750 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:10,131 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:17:10,160 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:13,626 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4155#(and (exists ((|v_ULTIMATE.start_main_~ret~1#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_23| Int) (|v_ULTIMATE.start_main_~ret5~0#1_24| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483647) (or (and (exists ((v_mapsum_~ret~0_163 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_24| (mod v_mapsum_~ret~0_163 4294967296))) (exists ((|v_#memory_int_121| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_121| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_121| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996)))))) (and (exists ((|v_#memory_int_121| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_121| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_121| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_163 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 4294967296) (mod v_mapsum_~ret~0_163 4294967296))))) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_23| |v_ULTIMATE.start_main_~ret~1#1_22|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_22| |v_ULTIMATE.start_main_~ret5~0#1_24|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_23| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_22| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_24| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_22| 2147483648)))) (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:17:13,626 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:13,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:13,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 25, 26] total 51 [2024-11-09 07:17:13,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719282135] [2024-11-09 07:17:13,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:13,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-09 07:17:13,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:13,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-09 07:17:13,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1353, Invalid=3198, Unknown=5, NotChecked=0, Total=4556 [2024-11-09 07:17:13,632 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 51 states, 51 states have (on average 2.3333333333333335) internal successors, (119), 51 states have internal predecessors, (119), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:17:13,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:13,901 INFO L93 Difference]: Finished difference Result 170 states and 202 transitions. [2024-11-09 07:17:13,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-09 07:17:13,902 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 2.3333333333333335) internal successors, (119), 51 states have internal predecessors, (119), 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 107 [2024-11-09 07:17:13,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:13,903 INFO L225 Difference]: With dead ends: 170 [2024-11-09 07:17:13,903 INFO L226 Difference]: Without dead ends: 134 [2024-11-09 07:17:13,905 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 278 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1502 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1353, Invalid=3198, Unknown=5, NotChecked=0, Total=4556 [2024-11-09 07:17:13,906 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:13,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 154 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:17:13,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-09 07:17:13,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2024-11-09 07:17:13,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 129 states have (on average 1.0232558139534884) internal successors, (132), 129 states have internal predecessors, (132), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:17:13,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 138 transitions. [2024-11-09 07:17:13,920 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 138 transitions. Word has length 107 [2024-11-09 07:17:13,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:13,920 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 138 transitions. [2024-11-09 07:17:13,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.3333333333333335) internal successors, (119), 51 states have internal predecessors, (119), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:17:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 138 transitions. [2024-11-09 07:17:13,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-09 07:17:13,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:13,927 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 12, 12, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:13,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:17:14,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:14,128 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:14,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:14,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1831562159, now seen corresponding path program 7 times [2024-11-09 07:17:14,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:14,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998028144] [2024-11-09 07:17:14,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:14,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:17,316 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998028144] [2024-11-09 07:17:17,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998028144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:17,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1171833129] [2024-11-09 07:17:17,316 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:17:17,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:17,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:17,329 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:17,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:17:17,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:17,586 INFO L255 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 07:17:17,590 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:17,787 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:17,788 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 2304 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:21,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1171833129] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:21,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1591055642] [2024-11-09 07:17:21,711 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:21,711 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:21,711 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:21,712 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:21,712 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:22,077 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:17:22,106 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:25,911 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5662#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_25| Int) (|v_ULTIMATE.start_main_~ret~1#1_24| Int) (|v_ULTIMATE.start_main_~ret5~0#1_26| Int)) (and (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483648)) (or (and (exists ((v_mapsum_~ret~0_192 Int)) (= (mod v_mapsum_~ret~0_192 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_26|)) (exists ((|v_#memory_int_185| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_185| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_185| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996)))))) (and (exists ((v_mapsum_~ret~0_192 Int)) (= (mod v_mapsum_~ret~0_192 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 4294967296))) (exists ((|v_#memory_int_185| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_185| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_185| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_24| 2147483648)) (<= |v_ULTIMATE.start_main_~ret~1#1_24| 2147483647) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_25| |v_ULTIMATE.start_main_~ret~1#1_24|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_24| |v_ULTIMATE.start_main_~ret5~0#1_26|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_25| 2147483647) (<= |v_ULTIMATE.start_main_~ret5~0#1_26| 2147483647))) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:17:25,912 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:25,912 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:25,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 50, 51] total 101 [2024-11-09 07:17:25,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124676577] [2024-11-09 07:17:25,912 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:25,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2024-11-09 07:17:25,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:25,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2024-11-09 07:17:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5129, Invalid=8673, Unknown=4, NotChecked=0, Total=13806 [2024-11-09 07:17:25,919 INFO L87 Difference]: Start difference. First operand 134 states and 138 transitions. Second operand has 101 states, 101 states have (on average 2.1683168316831685) internal successors, (219), 101 states have internal predecessors, (219), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:17:26,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:26,471 INFO L93 Difference]: Finished difference Result 270 states and 327 transitions. [2024-11-09 07:17:26,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2024-11-09 07:17:26,475 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 101 states have (on average 2.1683168316831685) internal successors, (219), 101 states have internal predecessors, (219), 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 157 [2024-11-09 07:17:26,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:26,477 INFO L225 Difference]: With dead ends: 270 [2024-11-09 07:17:26,477 INFO L226 Difference]: Without dead ends: 234 [2024-11-09 07:17:26,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 403 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 2952 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=5129, Invalid=8673, Unknown=4, NotChecked=0, Total=13806 [2024-11-09 07:17:26,482 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:26,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:17:26,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-09 07:17:26,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-11-09 07:17:26,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 229 states have (on average 1.0131004366812226) internal successors, (232), 229 states have internal predecessors, (232), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:17:26,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 238 transitions. [2024-11-09 07:17:26,500 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 238 transitions. Word has length 157 [2024-11-09 07:17:26,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:26,501 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 238 transitions. [2024-11-09 07:17:26,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 2.1683168316831685) internal successors, (219), 101 states have internal predecessors, (219), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:17:26,501 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 238 transitions. [2024-11-09 07:17:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-09 07:17:26,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:26,505 INFO L215 NwaCegarLoop]: trace histogram [98, 98, 12, 12, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:26,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 07:17:26,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:17:26,706 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:26,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:26,707 INFO L85 PathProgramCache]: Analyzing trace with hash 1538936617, now seen corresponding path program 8 times [2024-11-09 07:17:26,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:26,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200285916] [2024-11-09 07:17:26,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:26,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:35,832 INFO L134 CoverageAnalysis]: Checked inductivity of 9820 backedges. 0 proven. 9604 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-11-09 07:17:35,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200285916] [2024-11-09 07:17:35,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200285916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:35,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886694126] [2024-11-09 07:17:35,833 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:17:35,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:35,834 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:35,836 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:35,838 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:17:36,070 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 07:17:36,070 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:17:36,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:17:36,075 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 9820 backedges. 86 proven. 16 refuted. 0 times theorem prover too weak. 9718 trivial. 0 not checked. [2024-11-09 07:17:36,449 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:17:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 9820 backedges. 86 proven. 16 refuted. 0 times theorem prover too weak. 9718 trivial. 0 not checked. [2024-11-09 07:17:36,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886694126] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:17:36,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [462404329] [2024-11-09 07:17:36,792 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:17:36,792 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:17:36,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:17:36,793 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:17:36,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:17:37,104 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:17:37,160 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:17:39,796 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8079#(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_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)) (<= |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)) (or (and (exists ((v_mapsum_~ret~0_226 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_28| (mod v_mapsum_~ret~0_226 4294967296))) (exists ((|v_#memory_int_193| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_193| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_193| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996)))))) (and (exists ((v_mapsum_~ret~0_226 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_28| 4294967296) (mod v_mapsum_~ret~0_226 4294967296))) (exists ((|v_#memory_int_193| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_193| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_193| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))))) (<= 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|))))))' at error location [2024-11-09 07:17:39,796 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:17:39,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:17:39,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 7, 7] total 111 [2024-11-09 07:17:39,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135980199] [2024-11-09 07:17:39,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:17:39,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 111 states [2024-11-09 07:17:39,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:17:39,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 111 interpolants. [2024-11-09 07:17:39,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5194, Invalid=11058, Unknown=4, NotChecked=0, Total=16256 [2024-11-09 07:17:39,804 INFO L87 Difference]: Start difference. First operand 234 states and 238 transitions. Second operand has 111 states, 111 states have (on average 2.2072072072072073) internal successors, (245), 111 states have internal predecessors, (245), 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) [2024-11-09 07:17:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:17:40,305 INFO L93 Difference]: Finished difference Result 285 states and 302 transitions. [2024-11-09 07:17:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2024-11-09 07:17:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 111 states, 111 states have (on average 2.2072072072072073) internal successors, (245), 111 states have internal predecessors, (245), 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 257 [2024-11-09 07:17:40,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:17:40,308 INFO L225 Difference]: With dead ends: 285 [2024-11-09 07:17:40,308 INFO L226 Difference]: Without dead ends: 249 [2024-11-09 07:17:40,311 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 743 SyntacticMatches, 1 SemanticMatches, 126 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 3093 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=5194, Invalid=11058, Unknown=4, NotChecked=0, Total=16256 [2024-11-09 07:17:40,311 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:17:40,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 138 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:17:40,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-09 07:17:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-11-09 07:17:40,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 243 states have (on average 1.0123456790123457) internal successors, (246), 243 states have internal predecessors, (246), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:17:40,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 252 transitions. [2024-11-09 07:17:40,330 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 252 transitions. Word has length 257 [2024-11-09 07:17:40,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:17:40,331 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 252 transitions. [2024-11-09 07:17:40,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 111 states, 111 states have (on average 2.2072072072072073) internal successors, (245), 111 states have internal predecessors, (245), 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) [2024-11-09 07:17:40,331 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 252 transitions. [2024-11-09 07:17:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-11-09 07:17:40,336 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:17:40,336 INFO L215 NwaCegarLoop]: trace histogram [99, 99, 30, 30, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:17:40,361 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:17:40,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 07:17:40,548 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:17:40,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:17:40,549 INFO L85 PathProgramCache]: Analyzing trace with hash -475373912, now seen corresponding path program 9 times [2024-11-09 07:17:40,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:17:40,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545660287] [2024-11-09 07:17:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:17:40,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:17:40,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:17:49,126 INFO L134 CoverageAnalysis]: Checked inductivity of 10809 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:17:49,126 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:17:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545660287] [2024-11-09 07:17:49,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545660287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:17:49,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633474466] [2024-11-09 07:17:49,127 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:17:49,127 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:17:49,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:17:49,128 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:17:49,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:17:49,538 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:17:49,538 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:17:49,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 101 conjuncts are in the unsatisfiable core [2024-11-09 07:17:49,549 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:17:49,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10809 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:17:49,894 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:18:04,103 INFO L134 CoverageAnalysis]: Checked inductivity of 10809 backedges. 0 proven. 9801 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:18:04,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633474466] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:18:04,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1657118280] [2024-11-09 07:18:04,105 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:18:04,105 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:18:04,106 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:18:04,106 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:18:04,106 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:18:04,338 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:18:04,364 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:18:10,860 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '10859#(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_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 (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) (or (and (exists ((v_mapsum_~ret~0_273 Int)) (= (mod v_mapsum_~ret~0_273 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_30|)) (exists ((|v_#memory_int_308| (Array Int (Array Int Int)))) (= (store |v_#memory_int_308| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_308| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))) |#memory_int|))) (and (exists ((|v_#memory_int_308| (Array Int (Array Int Int)))) (= (store |v_#memory_int_308| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_308| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))) |#memory_int|)) (exists ((v_mapsum_~ret~0_273 Int)) (= (mod v_mapsum_~ret~0_273 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_30| 4294967296))))))))' at error location [2024-11-09 07:18:10,861 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:18:10,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:18:10,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 101, 102] total 203 [2024-11-09 07:18:10,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392129325] [2024-11-09 07:18:10,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:18:10,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2024-11-09 07:18:10,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:18:10,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2024-11-09 07:18:10,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20581, Invalid=27594, Unknown=5, NotChecked=0, Total=48180 [2024-11-09 07:18:10,876 INFO L87 Difference]: Start difference. First operand 248 states and 252 transitions. Second operand has 203 states, 203 states have (on average 2.083743842364532) internal successors, (423), 203 states have internal predecessors, (423), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:18:12,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:18:12,302 INFO L93 Difference]: Finished difference Result 498 states and 606 transitions. [2024-11-09 07:18:12,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2024-11-09 07:18:12,304 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.083743842364532) internal successors, (423), 203 states have internal predecessors, (423), 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 295 [2024-11-09 07:18:12,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:18:12,306 INFO L225 Difference]: With dead ends: 498 [2024-11-09 07:18:12,306 INFO L226 Difference]: Without dead ends: 450 [2024-11-09 07:18:12,310 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 985 GetRequests, 766 SyntacticMatches, 1 SemanticMatches, 218 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 5909 ImplicationChecksByTransitivity, 25.1s TimeCoverageRelationStatistics Valid=20581, Invalid=27594, Unknown=5, NotChecked=0, Total=48180 [2024-11-09 07:18:12,311 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:18:12,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 135 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-09 07:18:12,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-09 07:18:12,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2024-11-09 07:18:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 445 states have (on average 1.006741573033708) internal successors, (448), 445 states have internal predecessors, (448), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:18:12,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 454 transitions. [2024-11-09 07:18:12,336 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 454 transitions. Word has length 295 [2024-11-09 07:18:12,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:18:12,337 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 454 transitions. [2024-11-09 07:18:12,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.083743842364532) internal successors, (423), 203 states have internal predecessors, (423), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:18:12,338 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 454 transitions. [2024-11-09 07:18:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-09 07:18:12,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:18:12,350 INFO L215 NwaCegarLoop]: trace histogram [200, 200, 30, 30, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:18:12,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-09 07:18:12,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:12,551 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:18:12,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:18:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash -1630487487, now seen corresponding path program 10 times [2024-11-09 07:18:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:18:12,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696416401] [2024-11-09 07:18:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:18:12,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:18:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:45,274 INFO L134 CoverageAnalysis]: Checked inductivity of 41008 backedges. 0 proven. 40000 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:18:45,274 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:18:45,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696416401] [2024-11-09 07:18:45,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696416401] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:18:45,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123629970] [2024-11-09 07:18:45,275 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:18:45,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:18:45,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:18:45,277 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:18:45,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 07:18:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:18:46,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 2349 conjuncts, 202 conjuncts are in the unsatisfiable core [2024-11-09 07:18:46,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:18:46,844 INFO L134 CoverageAnalysis]: Checked inductivity of 41008 backedges. 0 proven. 40000 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:18:46,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:19:49,450 INFO L134 CoverageAnalysis]: Checked inductivity of 41008 backedges. 0 proven. 40000 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:19:49,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123629970] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:19:49,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [705171097] [2024-11-09 07:19:49,453 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:19:49,453 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:19:49,453 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:19:49,454 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:19:49,454 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:19:49,727 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:19:49,750 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:19:55,992 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '15676#(and (<= 1 |#StackHeapBarrier|) (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_#memory_int_524| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_524| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_524| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_320 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_32| 4294967296) (mod v_mapsum_~ret~0_320 4294967296)))) (and (exists ((|v_#memory_int_524| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_524| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_524| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_320 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_32| (mod v_mapsum_~ret~0_320 4294967296))))) (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)))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:19:55,992 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:19:55,992 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:19:55,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [203, 202, 203] total 405 [2024-11-09 07:19:55,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924674015] [2024-11-09 07:19:55,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:19:55,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 405 states [2024-11-09 07:19:55,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:19:56,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 405 interpolants. [2024-11-09 07:19:56,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81888, Invalid=95769, Unknown=5, NotChecked=0, Total=177662 [2024-11-09 07:19:56,016 INFO L87 Difference]: Start difference. First operand 450 states and 454 transitions. Second operand has 405 states, 405 states have (on average 2.0419753086419754) internal successors, (827), 405 states have internal predecessors, (827), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:20:01,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:20:01,438 INFO L93 Difference]: Finished difference Result 902 states and 1111 transitions. [2024-11-09 07:20:01,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 404 states. [2024-11-09 07:20:01,440 INFO L78 Accepts]: Start accepts. Automaton has has 405 states, 405 states have (on average 2.0419753086419754) internal successors, (827), 405 states have internal predecessors, (827), 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 497 [2024-11-09 07:20:01,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:20:01,445 INFO L225 Difference]: With dead ends: 902 [2024-11-09 07:20:01,445 INFO L226 Difference]: Without dead ends: 854 [2024-11-09 07:20:01,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1692 GetRequests, 1271 SyntacticMatches, 1 SemanticMatches, 420 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11768 ImplicationChecksByTransitivity, 87.9s TimeCoverageRelationStatistics Valid=81888, Invalid=95769, Unknown=5, NotChecked=0, Total=177662 [2024-11-09 07:20:01,459 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 2 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:20:01,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 211 Invalid, 841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 07:20:01,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 854 states. [2024-11-09 07:20:01,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 854 to 854. [2024-11-09 07:20:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 854 states, 849 states have (on average 1.0035335689045937) internal successors, (852), 849 states have internal predecessors, (852), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:20:01,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 854 states to 854 states and 858 transitions. [2024-11-09 07:20:01,494 INFO L78 Accepts]: Start accepts. Automaton has 854 states and 858 transitions. Word has length 497 [2024-11-09 07:20:01,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:20:01,495 INFO L471 AbstractCegarLoop]: Abstraction has 854 states and 858 transitions. [2024-11-09 07:20:01,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 405 states, 405 states have (on average 2.0419753086419754) internal successors, (827), 405 states have internal predecessors, (827), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 07:20:01,496 INFO L276 IsEmpty]: Start isEmpty. Operand 854 states and 858 transitions. [2024-11-09 07:20:01,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 902 [2024-11-09 07:20:01,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:20:01,527 INFO L215 NwaCegarLoop]: trace histogram [402, 402, 30, 30, 6, 6, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:20:01,555 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 07:20:01,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:20:01,728 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:20:01,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:20:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash -885473869, now seen corresponding path program 11 times [2024-11-09 07:20:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:20:01,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45913005] [2024-11-09 07:20:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:20:01,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:20:03,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:22:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 162612 backedges. 0 proven. 161604 refuted. 0 times theorem prover too weak. 1008 trivial. 0 not checked. [2024-11-09 07:22:36,188 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:22:36,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45913005] [2024-11-09 07:22:36,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45913005] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:22:36,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1475596797] [2024-11-09 07:22:36,189 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:22:36,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:22:36,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:22:36,190 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:22:36,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 07:22:36,961 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 07:22:36,961 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:22:36,966 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-09 07:22:36,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:22:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 162612 backedges. 448 proven. 36 refuted. 0 times theorem prover too weak. 162128 trivial. 0 not checked. [2024-11-09 07:22:38,477 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:22:40,092 INFO L134 CoverageAnalysis]: Checked inductivity of 162612 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 162576 trivial. 0 not checked. [2024-11-09 07:22:40,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1475596797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:22:40,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [736877700] [2024-11-09 07:22:40,095 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:22:40,095 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:22:40,095 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:22:40,095 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:22:40,096 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:22:40,424 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:22:40,460 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:22:54,575 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24143#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret~1#1_30| Int) (|v_ULTIMATE.start_main_~ret2~0#1_32| Int) (|v_ULTIMATE.start_main_~ret5~0#1_34| Int)) (and (or (and (exists ((|v_#memory_int_539| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_539| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_539| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))) (exists ((v_mapsum_~ret~0_367 Int)) (= (mod v_mapsum_~ret~0_367 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_34| 4294967296)))) (and (exists ((v_mapsum_~ret~0_367 Int)) (= (mod v_mapsum_~ret~0_367 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_34|)) (exists ((|v_#memory_int_539| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_539| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_539| |ULTIMATE.start_main_~#x~0#1.base|) 399996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 399996))))))) (<= |v_ULTIMATE.start_main_~ret2~0#1_32| 2147483647) (<= |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))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-09 07:22:54,576 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:22:54,576 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:22:54,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [405, 9, 9] total 419 [2024-11-09 07:22:54,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960288366] [2024-11-09 07:22:54,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:22:54,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 419 states [2024-11-09 07:22:54,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:22:54,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 419 interpolants. [2024-11-09 07:22:54,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82009, Invalid=108493, Unknown=30, NotChecked=0, Total=190532 [2024-11-09 07:22:54,610 INFO L87 Difference]: Start difference. First operand 854 states and 858 transitions. Second operand has 419 states, 419 states have (on average 2.052505966587112) internal successors, (860), 419 states have internal predecessors, (860), 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) [2024-11-09 07:23:01,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:23:01,411 INFO L93 Difference]: Finished difference Result 921 states and 937 transitions. [2024-11-09 07:23:01,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 419 states. [2024-11-09 07:23:01,413 INFO L78 Accepts]: Start accepts. Automaton has has 419 states, 419 states have (on average 2.052505966587112) internal successors, (860), 419 states have internal predecessors, (860), 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 901 [2024-11-09 07:23:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:23:01,419 INFO L225 Difference]: With dead ends: 921 [2024-11-09 07:23:01,419 INFO L226 Difference]: Without dead ends: 873 [2024-11-09 07:23:01,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3106 GetRequests, 2671 SyntacticMatches, 0 SemanticMatches, 435 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13300 ImplicationChecksByTransitivity, 101.8s TimeCoverageRelationStatistics Valid=82009, Invalid=108493, Unknown=30, NotChecked=0, Total=190532 [2024-11-09 07:23:01,434 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 3 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:23:01,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 153 Invalid, 883 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-09 07:23:01,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-09 07:23:01,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 872. [2024-11-09 07:23:01,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 872 states, 867 states have (on average 1.0034602076124568) internal successors, (870), 867 states have internal predecessors, (870), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:23:01,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 872 states to 872 states and 876 transitions. [2024-11-09 07:23:01,469 INFO L78 Accepts]: Start accepts. Automaton has 872 states and 876 transitions. Word has length 901 [2024-11-09 07:23:01,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:23:01,470 INFO L471 AbstractCegarLoop]: Abstraction has 872 states and 876 transitions. [2024-11-09 07:23:01,471 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 419 states, 419 states have (on average 2.052505966587112) internal successors, (860), 419 states have internal predecessors, (860), 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) [2024-11-09 07:23:01,471 INFO L276 IsEmpty]: Start isEmpty. Operand 872 states and 876 transitions. [2024-11-09 07:23:01,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2024-11-09 07:23:01,481 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:23:01,481 INFO L215 NwaCegarLoop]: trace histogram [403, 403, 30, 30, 14, 14, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:23:01,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 07:23:01,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:23:01,686 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:23:01,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:23:01,687 INFO L85 PathProgramCache]: Analyzing trace with hash 764891584, now seen corresponding path program 12 times [2024-11-09 07:23:01,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:23:01,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436694556] [2024-11-09 07:23:01,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:23:01,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:23:02,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:25:31,249 INFO L134 CoverageAnalysis]: Checked inductivity of 163577 backedges. 0 proven. 162409 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2024-11-09 07:25:31,249 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:25:31,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436694556] [2024-11-09 07:25:31,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436694556] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:25:31,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826467035] [2024-11-09 07:25:31,250 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:25:31,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:25:31,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:25:31,252 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:25:31,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5316cf04-4c13-4c0f-8973-31b43d32e94c/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-09 07:25:32,787 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:25:32,788 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:25:32,821 INFO L255 TraceCheckSpWp]: Trace formula consists of 4443 conjuncts, 405 conjuncts are in the unsatisfiable core [2024-11-09 07:25:32,837 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:25:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 163577 backedges. 0 proven. 162409 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2024-11-09 07:25:34,325 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:29:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 163577 backedges. 0 proven. 162409 refuted. 0 times theorem prover too weak. 1168 trivial. 0 not checked. [2024-11-09 07:29:57,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826467035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:29:57,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1994125722] [2024-11-09 07:29:57,334 INFO L159 IcfgInterpreter]: Started Sifa with 21 locations of interest [2024-11-09 07:29:57,335 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:29:57,336 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:29:57,336 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:29:57,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:29:57,624 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-09 07:29:57,656 INFO L180 IcfgInterpreter]: Interpretation finished