./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-crafted/mapsum3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/mapsum3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2 --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 9b90ab1091eaaf5a02261d2d1915a4d1b86c95775292408734bcf8be79905641 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:36:44,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:36:44,927 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-02 12:36:44,932 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:36:44,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:36:44,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:36:44,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:36:44,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:36:44,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:36:44,957 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:36:44,958 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:36:44,958 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:36:44,959 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:36:44,959 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:36:44,960 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:36:44,960 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:36:44,960 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:36:44,961 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:36:44,961 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:36:44,962 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:36:44,962 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:36:44,966 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:36:44,967 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:36:44,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:36:44,967 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-02 12:36:44,968 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:36:44,968 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-02 12:36:44,968 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:36:44,969 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:36:44,969 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:36:44,969 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:36:44,970 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:36:44,970 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-02 12:36:44,970 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:36:44,971 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:36:44,971 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:36:44,972 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:36:44,972 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:36:44,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:44,973 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:36:44,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:36:44,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:36:44,974 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:36:44,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:36:44,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:36:44,975 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:36:44,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:36:44,975 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_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b90ab1091eaaf5a02261d2d1915a4d1b86c95775292408734bcf8be79905641 [2024-11-02 12:36:45,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:36:45,246 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:36:45,249 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:36:45,252 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:36:45,252 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:36:45,253 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/array-crafted/mapsum3.i Unable to find full path for "g++" [2024-11-02 12:36:47,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:36:47,914 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:36:47,915 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/sv-benchmarks/c/array-crafted/mapsum3.i [2024-11-02 12:36:47,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/data/5f466190e/550de95883bc483f9228359e310521b0/FLAGd00cf8a7a [2024-11-02 12:36:47,965 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/data/5f466190e/550de95883bc483f9228359e310521b0 [2024-11-02 12:36:47,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:36:47,971 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:36:47,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:47,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:36:47,984 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:36:47,985 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:47" (1/1) ... [2024-11-02 12:36:47,988 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea2008a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:47, skipping insertion in model container [2024-11-02 12:36:47,989 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:36:47" (1/1) ... [2024-11-02 12:36:48,019 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:36:48,293 WARN L251 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_732a7b11-a867-4ac4-80e1-ab1bea5df844/sv-benchmarks/c/array-crafted/mapsum3.i[1312,1325] [2024-11-02 12:36:48,300 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:48,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:36:48,341 WARN L251 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_732a7b11-a867-4ac4-80e1-ab1bea5df844/sv-benchmarks/c/array-crafted/mapsum3.i[1312,1325] [2024-11-02 12:36:48,346 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:36:48,372 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:36:48,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48 WrapperNode [2024-11-02 12:36:48,373 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:36:48,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:48,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:36:48,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:36:48,383 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,396 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,425 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-02 12:36:48,425 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:36:48,426 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:36:48,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:36:48,426 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:36:48,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,442 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,443 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,452 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,464 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,465 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,466 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,468 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:36:48,469 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:36:48,469 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:36:48,469 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:36:48,474 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (1/1) ... [2024-11-02 12:36:48,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:36:48,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:48,512 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:36:48,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:36:48,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:36:48,552 INFO L130 BoogieDeclarations]: Found specification of procedure mapsum [2024-11-02 12:36:48,552 INFO L138 BoogieDeclarations]: Found implementation of procedure mapsum [2024-11-02 12:36:48,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:36:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:36:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:36:48,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:36:48,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:36:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:36:48,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:36:48,655 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:36:48,660 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:36:48,944 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-02 12:36:48,944 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:36:49,006 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:36:49,007 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-02 12:36:49,007 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:49 BoogieIcfgContainer [2024-11-02 12:36:49,008 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:36:49,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:36:49,012 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:36:49,016 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:36:49,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:36:47" (1/3) ... [2024-11-02 12:36:49,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c59c6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:49, skipping insertion in model container [2024-11-02 12:36:49,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:36:48" (2/3) ... [2024-11-02 12:36:49,020 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c59c6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:36:49, skipping insertion in model container [2024-11-02 12:36:49,022 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:36:49" (3/3) ... [2024-11-02 12:36:49,023 INFO L112 eAbstractionObserver]: Analyzing ICFG mapsum3.i [2024-11-02 12:36:49,045 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:36:49,046 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:36:49,109 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:36:49,117 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;@3e293171, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:36:49,117 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:36:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:36:49,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-02 12:36:49,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:49,132 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:49,132 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:49,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:49,139 INFO L85 PathProgramCache]: Analyzing trace with hash -166292639, now seen corresponding path program 1 times [2024-11-02 12:36:49,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:49,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103272109] [2024-11-02 12:36:49,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:49,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:49,531 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-02 12:36:49,534 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103272109] [2024-11-02 12:36:49,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103272109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:49,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:36:49,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:36:49,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621390249] [2024-11-02 12:36:49,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:49,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:49,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:49,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:49,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:36:49,574 INFO L87 Difference]: Start difference. First operand has 17 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 12:36:49,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:49,639 INFO L93 Difference]: Finished difference Result 33 states and 43 transitions. [2024-11-02 12:36:49,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:49,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2024-11-02 12:36:49,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:49,651 INFO L225 Difference]: With dead ends: 33 [2024-11-02 12:36:49,651 INFO L226 Difference]: Without dead ends: 16 [2024-11-02 12:36:49,655 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 [2024-11-02 12:36:49,659 INFO L432 NwaCegarLoop]: 13 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:49,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:49,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-02 12:36:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-02 12:36:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:36:49,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2024-11-02 12:36:49,699 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 20 [2024-11-02 12:36:49,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:49,699 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2024-11-02 12:36:49,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-02 12:36:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2024-11-02 12:36:49,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-02 12:36:49,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:49,702 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:49,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:36:49,702 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:49,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:49,703 INFO L85 PathProgramCache]: Analyzing trace with hash -266931704, now seen corresponding path program 1 times [2024-11-02 12:36:49,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:49,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [958469145] [2024-11-02 12:36:49,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:49,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:49,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:49,863 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-02 12:36:49,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:49,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [958469145] [2024-11-02 12:36:49,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [958469145] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:49,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294963241] [2024-11-02 12:36:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:49,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:49,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:49,868 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:49,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-02 12:36:50,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:50,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 12:36:50,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-02 12:36:50,036 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:50,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294963241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:50,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:36:50,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-02 12:36:50,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642238531] [2024-11-02 12:36:50,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:50,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:50,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:36:50,040 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 12:36:50,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:50,086 INFO L93 Difference]: Finished difference Result 29 states and 39 transitions. [2024-11-02 12:36:50,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:50,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-02 12:36:50,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:50,087 INFO L225 Difference]: With dead ends: 29 [2024-11-02 12:36:50,087 INFO L226 Difference]: Without dead ends: 17 [2024-11-02 12:36:50,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:36:50,089 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:50,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:50,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-02 12:36:50,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-02 12:36:50,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:36:50,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2024-11-02 12:36:50,103 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 21 [2024-11-02 12:36:50,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:50,103 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2024-11-02 12:36:50,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 12:36:50,104 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-02 12:36:50,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-02 12:36:50,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:50,106 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:50,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-02 12:36:50,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-02 12:36:50,308 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:50,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:50,308 INFO L85 PathProgramCache]: Analyzing trace with hash 6965988, now seen corresponding path program 1 times [2024-11-02 12:36:50,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:50,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130930877] [2024-11-02 12:36:50,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:50,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:50,419 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 12:36:50,420 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:50,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130930877] [2024-11-02 12:36:50,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130930877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:50,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979713515] [2024-11-02 12:36:50,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:50,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:50,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:50,424 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:50,426 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-02 12:36:50,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:50,540 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-02 12:36:50,542 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:50,556 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-02 12:36:50,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-02 12:36:50,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979713515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:36:50,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-02 12:36:50,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-02 12:36:50,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037994055] [2024-11-02 12:36:50,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:36:50,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:36:50,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:36:50,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:36:50,562 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 12:36:50,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:50,593 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-02 12:36:50,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:36:50,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 24 [2024-11-02 12:36:50,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:50,597 INFO L225 Difference]: With dead ends: 27 [2024-11-02 12:36:50,597 INFO L226 Difference]: Without dead ends: 18 [2024-11-02 12:36:50,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-02 12:36:50,600 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:50,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:50,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2024-11-02 12:36:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2024-11-02 12:36:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:36:50,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2024-11-02 12:36:50,608 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 24 [2024-11-02 12:36:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:50,612 INFO L471 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2024-11-02 12:36:50,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-02 12:36:50,612 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2024-11-02 12:36:50,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-02 12:36:50,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:50,615 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:50,636 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-02 12:36:50,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:50,816 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:50,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:50,817 INFO L85 PathProgramCache]: Analyzing trace with hash 717042939, now seen corresponding path program 1 times [2024-11-02 12:36:50,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:50,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898502057] [2024-11-02 12:36:50,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:50,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:50,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:51,003 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 12:36:51,003 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:51,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898502057] [2024-11-02 12:36:51,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898502057] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:51,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [240160464] [2024-11-02 12:36:51,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:51,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:51,006 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:51,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-02 12:36:51,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:51,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:36:51,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:51,133 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 12:36:51,134 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:51,180 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-02 12:36:51,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [240160464] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:36:51,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1245960969] [2024-11-02 12:36:51,202 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:36:51,202 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:51,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:51,212 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:51,213 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:36:52,112 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-02 12:36:52,185 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:36:59,235 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '533#(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_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)) (or (and (exists ((v_mapsum_~ret~0_33 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_14| (mod v_mapsum_~ret~0_33 4294967296))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996)))))) (and (exists ((v_mapsum_~ret~0_33 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_14| 4294967296) (mod v_mapsum_~ret~0_33 4294967296))) (exists ((|v_#memory_int_40| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_40| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (<= |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) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_14| 2147483648)))))' at error location [2024-11-02 12:36:59,236 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:36:59,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:36:59,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 7 [2024-11-02 12:36:59,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255077692] [2024-11-02 12:36:59,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:36:59,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:36:59,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:36:59,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:36:59,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=300, Unknown=5, NotChecked=0, Total=380 [2024-11-02 12:36:59,240 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-02 12:36:59,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:36:59,291 INFO L93 Difference]: Finished difference Result 36 states and 46 transitions. [2024-11-02 12:36:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:36:59,292 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 25 [2024-11-02 12:36:59,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:36:59,293 INFO L225 Difference]: With dead ends: 36 [2024-11-02 12:36:59,293 INFO L226 Difference]: Without dead ends: 21 [2024-11-02 12:36:59,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=75, Invalid=300, Unknown=5, NotChecked=0, Total=380 [2024-11-02 12:36:59,295 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:36:59,296 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 36 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:36:59,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-02 12:36:59,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-02 12:36:59,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:36:59,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2024-11-02 12:36:59,302 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 25 [2024-11-02 12:36:59,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:36:59,303 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2024-11-02 12:36:59,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-02 12:36:59,303 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2024-11-02 12:36:59,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-02 12:36:59,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:36:59,304 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:36:59,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-02 12:36:59,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:59,509 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:36:59,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:36:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1282305132, now seen corresponding path program 2 times [2024-11-02 12:36:59,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:36:59,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202767584] [2024-11-02 12:36:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:36:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:36:59,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:36:59,700 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 12:36:59,701 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:36:59,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202767584] [2024-11-02 12:36:59,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202767584] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:36:59,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046179762] [2024-11-02 12:36:59,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:36:59,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:36:59,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:36:59,706 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:36:59,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-02 12:36:59,807 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-02 12:36:59,808 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:36:59,810 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-02 12:36:59,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:36:59,830 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 12:36:59,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:36:59,884 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-02 12:36:59,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046179762] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:36:59,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2025720577] [2024-11-02 12:36:59,888 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:36:59,888 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:36:59,888 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:36:59,889 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:36:59,889 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:00,414 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-02 12:37:00,450 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:03,473 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '809#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_15| Int) (|v_ULTIMATE.start_main_~ret~1#1_15| Int) (|v_ULTIMATE.start_main_~ret5~0#1_16| Int)) (and (<= |v_ULTIMATE.start_main_~ret2~0#1_15| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_15| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_16| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_15| 2147483647) (or (and (exists ((|v_#memory_int_48| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_55 Int)) (= (+ |v_ULTIMATE.start_main_~ret5~0#1_16| 4294967296) (mod v_mapsum_~ret~0_55 4294967296)))) (and (exists ((|v_#memory_int_48| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_48| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_55 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_16| (mod v_mapsum_~ret~0_55 4294967296))))) (<= 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 [2024-11-02 12:37:03,473 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:03,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:03,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-02 12:37:03,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564529781] [2024-11-02 12:37:03,474 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:03,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-02 12:37:03,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:03,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-02 12:37:03,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=300, Unknown=2, NotChecked=0, Total=380 [2024-11-02 12:37:03,476 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:37:03,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:03,517 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2024-11-02 12:37:03,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-02 12:37:03,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 28 [2024-11-02 12:37:03,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:03,520 INFO L225 Difference]: With dead ends: 38 [2024-11-02 12:37:03,521 INFO L226 Difference]: Without dead ends: 24 [2024-11-02 12:37:03,522 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=78, Invalid=300, Unknown=2, NotChecked=0, Total=380 [2024-11-02 12:37:03,523 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:03,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-02 12:37:03,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-11-02 12:37:03,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-11-02 12:37:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:37:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2024-11-02 12:37:03,537 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 28 [2024-11-02 12:37:03,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:03,537 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2024-11-02 12:37:03,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:37:03,538 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2024-11-02 12:37:03,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-02 12:37:03,539 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:03,539 INFO L215 NwaCegarLoop]: trace histogram [12, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:03,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-02 12:37:03,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:03,744 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:03,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:03,745 INFO L85 PathProgramCache]: Analyzing trace with hash 386943160, now seen corresponding path program 3 times [2024-11-02 12:37:03,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:03,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880410226] [2024-11-02 12:37:03,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:03,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:03,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-02 12:37:03,860 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880410226] [2024-11-02 12:37:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880410226] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:03,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137169397] [2024-11-02 12:37:03,861 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-02 12:37:03,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:03,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:03,863 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:03,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-02 12:37:03,995 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-02 12:37:03,995 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:37:03,997 INFO L255 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:37:03,999 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-02 12:37:04,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-02 12:37:04,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137169397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:04,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [612980946] [2024-11-02 12:37:04,164 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:04,164 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:04,164 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:04,167 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:04,167 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:04,587 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-02 12:37:04,617 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:07,554 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1156#(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|))) (or (and (exists ((|v_#memory_int_63| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_63| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_63| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_84 Int)) (= (mod v_mapsum_~ret~0_84 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_18|))) (and (exists ((|v_#memory_int_63| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_63| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_63| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_84 Int)) (= (mod v_mapsum_~ret~0_84 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 4294967296))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_17| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_18| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_17| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_17| 2147483647))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-02 12:37:07,554 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:07,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:07,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 7] total 14 [2024-11-02 12:37:07,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183459222] [2024-11-02 12:37:07,555 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:07,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-02 12:37:07,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:07,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-02 12:37:07,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=565, Unknown=15, NotChecked=0, Total=702 [2024-11-02 12:37:07,558 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:37:07,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:07,622 INFO L93 Difference]: Finished difference Result 49 states and 63 transitions. [2024-11-02 12:37:07,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-02 12:37:07,625 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 37 [2024-11-02 12:37:07,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:07,625 INFO L225 Difference]: With dead ends: 49 [2024-11-02 12:37:07,625 INFO L226 Difference]: Without dead ends: 31 [2024-11-02 12:37:07,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=122, Invalid=565, Unknown=15, NotChecked=0, Total=702 [2024-11-02 12:37:07,627 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:07,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:07,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-02 12:37:07,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-02 12:37:07,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:37:07,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-02 12:37:07,634 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2024-11-02 12:37:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:07,635 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-02 12:37:07,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-02 12:37:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-02 12:37:07,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-02 12:37:07,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:07,636 INFO L215 NwaCegarLoop]: trace histogram [12, 10, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:07,659 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-02 12:37:07,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-02 12:37:07,837 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:07,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:07,838 INFO L85 PathProgramCache]: Analyzing trace with hash -1360171231, now seen corresponding path program 4 times [2024-11-02 12:37:07,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:07,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835313850] [2024-11-02 12:37:07,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:07,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:08,273 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-02 12:37:08,273 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:08,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835313850] [2024-11-02 12:37:08,274 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835313850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:08,274 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306332737] [2024-11-02 12:37:08,274 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-02 12:37:08,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:08,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:08,277 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:08,278 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-02 12:37:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:08,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-02 12:37:08,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-02 12:37:08,444 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:08,761 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-02 12:37:08,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306332737] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:08,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1247667780] [2024-11-02 12:37:08,764 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:08,764 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:08,764 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:08,764 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:08,765 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:09,099 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-02 12:37:09,128 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:16,035 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1592#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~ret2~0#1_19| Int) (|v_ULTIMATE.start_main_~ret5~0#1_20| Int) (|v_ULTIMATE.start_main_~ret~1#1_19| Int)) (and (or (and (exists ((v_mapsum_~ret~0_113 Int)) (= (mod v_mapsum_~ret~0_113 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 4294967296))) (exists ((|v_#memory_int_85| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_85| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_85| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996)))))) (and (exists ((v_mapsum_~ret~0_113 Int)) (= (mod v_mapsum_~ret~0_113 4294967296) |v_ULTIMATE.start_main_~ret5~0#1_20|)) (exists ((|v_#memory_int_85| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_85| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_85| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_19| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_20| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_19| 2147483647) (<= |v_ULTIMATE.start_main_~ret2~0#1_19| 2147483647) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_19| 2147483648)) (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_19| |v_ULTIMATE.start_main_~ret~1#1_19|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_19| |v_ULTIMATE.start_main_~ret5~0#1_20|))))) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0))' at error location [2024-11-02 12:37:16,035 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:16,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:16,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 25 [2024-11-02 12:37:16,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138808656] [2024-11-02 12:37:16,036 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:16,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-02 12:37:16,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:16,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-02 12:37:16,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=1047, Unknown=5, NotChecked=0, Total=1406 [2024-11-02 12:37:16,038 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-02 12:37:16,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:16,117 INFO L93 Difference]: Finished difference Result 62 states and 81 transitions. [2024-11-02 12:37:16,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-02 12:37:16,118 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-11-02 12:37:16,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:16,119 INFO L225 Difference]: With dead ends: 62 [2024-11-02 12:37:16,119 INFO L226 Difference]: Without dead ends: 43 [2024-11-02 12:37:16,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=354, Invalid=1047, Unknown=5, NotChecked=0, Total=1406 [2024-11-02 12:37:16,121 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:16,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:16,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-02 12:37:16,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2024-11-02 12:37:16,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 38 states have (on average 1.0789473684210527) internal successors, (41), 38 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:37:16,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 47 transitions. [2024-11-02 12:37:16,127 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 47 transitions. Word has length 44 [2024-11-02 12:37:16,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:16,127 INFO L471 AbstractCegarLoop]: Abstraction has 43 states and 47 transitions. [2024-11-02 12:37:16,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.56) internal successors, (39), 25 states have internal predecessors, (39), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-02 12:37:16,127 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 47 transitions. [2024-11-02 12:37:16,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-02 12:37:16,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:16,129 INFO L215 NwaCegarLoop]: trace histogram [22, 12, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:16,149 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-02 12:37:16,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:16,330 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:16,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:16,330 INFO L85 PathProgramCache]: Analyzing trace with hash -2007571359, now seen corresponding path program 5 times [2024-11-02 12:37:16,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:16,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217682323] [2024-11-02 12:37:16,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:16,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:17,095 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-02 12:37:17,095 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:17,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217682323] [2024-11-02 12:37:17,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217682323] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:17,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821230304] [2024-11-02 12:37:17,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-02 12:37:17,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:17,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:17,098 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:17,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-02 12:37:17,204 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-02 12:37:17,204 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:37:17,205 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-02 12:37:17,207 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-02 12:37:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-02 12:37:17,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-02 12:37:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 52 proven. 10 refuted. 0 times theorem prover too weak. 305 trivial. 0 not checked. [2024-11-02 12:37:17,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821230304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-02 12:37:17,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [977500008] [2024-11-02 12:37:17,455 INFO L159 IcfgInterpreter]: Started Sifa with 15 locations of interest [2024-11-02 12:37:17,455 INFO L166 IcfgInterpreter]: Building call graph [2024-11-02 12:37:17,455 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-02 12:37:17,456 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-02 12:37:17,456 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-02 12:37:17,784 INFO L197 IcfgInterpreter]: Interpreting procedure mapsum with input of size 10 for LOIs [2024-11-02 12:37:17,812 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-02 12:37:22,936 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2160#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (exists ((|v_ULTIMATE.start_main_~ret~1#1_20| Int) (|v_ULTIMATE.start_main_~ret5~0#1_22| Int) (|v_ULTIMATE.start_main_~ret2~0#1_20| Int)) (and (or (not (= |v_ULTIMATE.start_main_~ret2~0#1_20| |v_ULTIMATE.start_main_~ret~1#1_20|)) (not (= |v_ULTIMATE.start_main_~ret~1#1_20| |v_ULTIMATE.start_main_~ret5~0#1_22|))) (<= 0 (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483648)) (<= |v_ULTIMATE.start_main_~ret5~0#1_22| 2147483647) (or (and (exists ((|v_#memory_int_93| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_93| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_93| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_147 Int)) (= (mod v_mapsum_~ret~0_147 4294967296) (+ |v_ULTIMATE.start_main_~ret5~0#1_22| 4294967296)))) (and (exists ((|v_#memory_int_93| (Array Int (Array Int Int)))) (= |#memory_int| (store |v_#memory_int_93| |ULTIMATE.start_main_~#x~0#1.base| (store (select |v_#memory_int_93| |ULTIMATE.start_main_~#x~0#1.base|) 39996 (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) 39996))))) (exists ((v_mapsum_~ret~0_147 Int)) (= |v_ULTIMATE.start_main_~ret5~0#1_22| (mod v_mapsum_~ret~0_147 4294967296))))) (<= 0 (+ |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483648)) (<= 0 (+ |v_ULTIMATE.start_main_~ret~1#1_20| 2147483648)) (<= |v_ULTIMATE.start_main_~ret2~0#1_20| 2147483647) (<= |v_ULTIMATE.start_main_~ret~1#1_20| 2147483647))))' at error location [2024-11-02 12:37:22,936 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-02 12:37:22,936 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-02 12:37:22,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 7, 7] total 35 [2024-11-02 12:37:22,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066986259] [2024-11-02 12:37:22,937 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-02 12:37:22,937 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-02 12:37:22,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:37:22,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-02 12:37:22,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=422, Invalid=1831, Unknown=3, NotChecked=0, Total=2256 [2024-11-02 12:37:22,939 INFO L87 Difference]: Start difference. First operand 43 states and 47 transitions. Second operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:37:23,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:37:23,031 INFO L93 Difference]: Finished difference Result 69 states and 86 transitions. [2024-11-02 12:37:23,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-02 12:37:23,032 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 56 [2024-11-02 12:37:23,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:37:23,033 INFO L225 Difference]: With dead ends: 69 [2024-11-02 12:37:23,033 INFO L226 Difference]: Without dead ends: 50 [2024-11-02 12:37:23,034 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 722 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=422, Invalid=1831, Unknown=3, NotChecked=0, Total=2256 [2024-11-02 12:37:23,035 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:37:23,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 70 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-02 12:37:23,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2024-11-02 12:37:23,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2024-11-02 12:37:23,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 45 states have (on average 1.0666666666666667) internal successors, (48), 45 states have internal predecessors, (48), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-02 12:37:23,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2024-11-02 12:37:23,043 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 56 [2024-11-02 12:37:23,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:37:23,044 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2024-11-02 12:37:23,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 35 states have internal predecessors, (53), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-02 12:37:23,044 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2024-11-02 12:37:23,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-02 12:37:23,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:37:23,045 INFO L215 NwaCegarLoop]: trace histogram [30, 23, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:37:23,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-02 12:37:23,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-02 12:37:23,246 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:37:23,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:37:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1272958088, now seen corresponding path program 6 times [2024-11-02 12:37:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:37:23,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580109665] [2024-11-02 12:37:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:37:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:37:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:37:24,247 INFO L134 CoverageAnalysis]: Checked inductivity of 813 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-02 12:37:24,247 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:37:24,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580109665] [2024-11-02 12:37:24,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580109665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-02 12:37:24,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550925666] [2024-11-02 12:37:24,248 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-02 12:37:24,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-02 12:37:24,248 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:37:24,250 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-02 12:37:24,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_732a7b11-a867-4ac4-80e1-ab1bea5df844/bin/utaipan-verify-DbMuA5NWw2/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-02 12:37:24,421 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-02 12:37:24,421 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-02 12:37:24,424 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-02 12:37:24,427 INFO L278 TraceCheckSpWp]: Computing forward predicates...