./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:10:42,892 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:10:42,986 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:10:42,992 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:10:42,993 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:10:43,029 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:10:43,030 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:10:43,030 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:10:43,031 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:10:43,032 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:10:43,033 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:10:43,033 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:10:43,033 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:10:43,034 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:10:43,034 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:10:43,034 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:10:43,035 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:10:43,035 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:10:43,036 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:10:43,036 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:10:43,036 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:10:43,041 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:10:43,041 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:10:43,041 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:10:43,042 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:10:43,042 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:10:43,042 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:10:43,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:10:43,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:10:43,044 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:10:43,044 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:10:43,045 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:10:43,045 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:10:43,046 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:10:43,046 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:10:43,047 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:10:43,047 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:10:43,047 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:10:43,047 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:10:43,048 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:10:43,048 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:43,049 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:10:43,049 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:10:43,049 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:10:43,049 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:10:43,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:10:43,050 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:10:43,050 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:10:43,050 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:10:43,050 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_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6437fdc3c0b95eb5fb3a7e28606efb50e2431074b1de5f5cf4c718827adac36d [2024-11-09 05:10:43,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:10:43,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:10:43,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:10:43,417 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:10:43,418 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:10:43,419 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c Unable to find full path for "g++" [2024-11-09 05:10:45,298 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:10:45,568 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:10:45,569 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound5.c [2024-11-09 05:10:45,578 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/data/5e895c785/37fc6141df0e489ab63bea11cc219703/FLAG7401be94a [2024-11-09 05:10:45,605 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/data/5e895c785/37fc6141df0e489ab63bea11cc219703 [2024-11-09 05:10:45,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:10:45,609 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:10:45,611 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:45,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:10:45,618 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:10:45,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19bcba28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45, skipping insertion in model container [2024-11-09 05:10:45,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,649 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:10:45,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:45,898 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:10:45,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:10:45,933 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:10:45,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45 WrapperNode [2024-11-09 05:10:45,934 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:10:45,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:45,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:10:45,935 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:10:45,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,969 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 44 [2024-11-09 05:10:45,970 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:10:45,970 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:10:45,971 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:10:45,971 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:10:45,980 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,980 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,981 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,981 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,985 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,989 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,990 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:45,992 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:10:45,993 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:10:45,993 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:10:45,993 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:10:45,994 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (1/1) ... [2024-11-09 05:10:46,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:10:46,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:46,032 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:10:46,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:10:46,066 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:10:46,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:10:46,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:10:46,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:10:46,067 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 05:10:46,067 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 05:10:46,127 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:10:46,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:10:46,283 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 05:10:46,283 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:10:46,337 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:10:46,337 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:10:46,338 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:46 BoogieIcfgContainer [2024-11-09 05:10:46,338 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:10:46,340 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:10:46,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:10:46,343 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:10:46,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:10:45" (1/3) ... [2024-11-09 05:10:46,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc2a0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:46, skipping insertion in model container [2024-11-09 05:10:46,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:10:45" (2/3) ... [2024-11-09 05:10:46,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dc2a0ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:10:46, skipping insertion in model container [2024-11-09 05:10:46,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:10:46" (3/3) ... [2024-11-09 05:10:46,347 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound5.c [2024-11-09 05:10:46,363 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:10:46,363 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 05:10:46,419 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:10:46,425 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;@728deeb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:10:46,425 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 05:10:46,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:46,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-09 05:10:46,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:46,440 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1] [2024-11-09 05:10:46,440 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:46,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:46,446 INFO L85 PathProgramCache]: Analyzing trace with hash 98567, now seen corresponding path program 1 times [2024-11-09 05:10:46,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:46,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936971350] [2024-11-09 05:10:46,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:46,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:46,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:46,571 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:46,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936971350] [2024-11-09 05:10:46,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936971350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:46,572 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:46,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:10:46,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597984777] [2024-11-09 05:10:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:46,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 05:10:46,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:46,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 05:10:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:10:46,599 INFO L87 Difference]: Start difference. First operand has 21 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:46,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:46,632 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-11-09 05:10:46,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 05:10:46,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2024-11-09 05:10:46,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:46,642 INFO L225 Difference]: With dead ends: 29 [2024-11-09 05:10:46,642 INFO L226 Difference]: Without dead ends: 16 [2024-11-09 05:10:46,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 05:10:46,649 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:46,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:10:46,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2024-11-09 05:10:46,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2024-11-09 05:10:46,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 05:10:46,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2024-11-09 05:10:46,687 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2024-11-09 05:10:46,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:46,688 INFO L471 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2024-11-09 05:10:46,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 3.0) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:46,688 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2024-11-09 05:10:46,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:10:46,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:46,689 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:10:46,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:10:46,690 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:46,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:46,691 INFO L85 PathProgramCache]: Analyzing trace with hash 3055628, now seen corresponding path program 1 times [2024-11-09 05:10:46,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:46,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722615468] [2024-11-09 05:10:46,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:46,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:46,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:46,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1605638986] [2024-11-09 05:10:46,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:46,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:46,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:46,712 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:46,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:10:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:46,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:10:46,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:46,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:46,796 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:10:46,796 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:46,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722615468] [2024-11-09 05:10:46,797 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:46,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605638986] [2024-11-09 05:10:46,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605638986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:10:46,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:10:46,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 05:10:46,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537804512] [2024-11-09 05:10:46,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:10:46,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:10:46,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:46,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:10:46,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:10:46,801 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:46,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:46,855 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2024-11-09 05:10:46,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:10:46,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:10:46,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:46,856 INFO L225 Difference]: With dead ends: 29 [2024-11-09 05:10:46,856 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 05:10:46,857 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:10:46,858 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:46,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 14 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:10:46,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 05:10:46,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 05:10:46,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:46,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2024-11-09 05:10:46,871 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 4 [2024-11-09 05:10:46,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:46,871 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2024-11-09 05:10:46,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:10:46,871 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2024-11-09 05:10:46,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-09 05:10:46,873 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:46,873 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:10:46,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:10:47,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:47,077 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:47,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:47,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1614454891, now seen corresponding path program 1 times [2024-11-09 05:10:47,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:47,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701934674] [2024-11-09 05:10:47,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:47,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:47,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:47,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1617117413] [2024-11-09 05:10:47,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:47,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:47,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:47,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:47,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:10:47,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:47,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:10:47,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:47,309 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:47,309 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:10:47,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:47,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701934674] [2024-11-09 05:10:47,418 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:47,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617117413] [2024-11-09 05:10:47,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617117413] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:47,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126396713] [2024-11-09 05:10:47,448 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:10:47,449 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:47,452 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:47,459 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:47,459 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:48,311 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:10:48,313 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:48,574 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '239#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_36| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_36| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_36|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_36| |v_ULTIMATE.start_main_~r~0#1_36|)))))' at error location [2024-11-09 05:10:48,574 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:48,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:10:48,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 05:10:48,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865113407] [2024-11-09 05:10:48,575 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:48,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:10:48,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:48,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:10:48,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-09 05:10:48,579 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:48,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:48,690 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2024-11-09 05:10:48,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:10:48,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-11-09 05:10:48,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:48,692 INFO L225 Difference]: With dead ends: 45 [2024-11-09 05:10:48,692 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 05:10:48,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2024-11-09 05:10:48,694 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:48,694 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 24 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:10:48,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 05:10:48,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 05:10:48,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 29 states have (on average 1.0344827586206897) internal successors, (30), 29 states have internal predecessors, (30), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 05:10:48,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-09 05:10:48,702 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 13 [2024-11-09 05:10:48,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:48,703 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-09 05:10:48,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:10:48,704 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-09 05:10:48,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-09 05:10:48,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:48,705 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 1, 1] [2024-11-09 05:10:48,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:10:48,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:48,909 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:48,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:48,910 INFO L85 PathProgramCache]: Analyzing trace with hash 735915084, now seen corresponding path program 2 times [2024-11-09 05:10:48,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:48,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788436978] [2024-11-09 05:10:48,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:48,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:48,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1486583159] [2024-11-09 05:10:48,944 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:10:48,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:48,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:48,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:48,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:10:49,012 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-11-09 05:10:49,013 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:49,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 05:10:49,016 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:49,100 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:10:49,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:49,296 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:10:49,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:49,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788436978] [2024-11-09 05:10:49,297 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486583159] [2024-11-09 05:10:49,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486583159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:49,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1126015707] [2024-11-09 05:10:49,300 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:10:49,301 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:49,302 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:49,302 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:49,302 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:49,726 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:10:49,736 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:50,132 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '595#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_49| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_49| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_49|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_49| |v_ULTIMATE.start_main_~r~0#1_49|)))))' at error location [2024-11-09 05:10:50,133 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:50,133 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:10:50,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 05:10:50,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022230968] [2024-11-09 05:10:50,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:50,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 05:10:50,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:50,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 05:10:50,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2024-11-09 05:10:50,136 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:10:50,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:50,420 INFO L93 Difference]: Finished difference Result 78 states and 92 transitions. [2024-11-09 05:10:50,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 05:10:50,421 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 40 [2024-11-09 05:10:50,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:50,422 INFO L225 Difference]: With dead ends: 78 [2024-11-09 05:10:50,423 INFO L226 Difference]: Without dead ends: 77 [2024-11-09 05:10:50,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 97 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=115, Invalid=347, Unknown=0, NotChecked=0, Total=462 [2024-11-09 05:10:50,425 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 18 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:50,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 95 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:10:50,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-09 05:10:50,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-09 05:10:50,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 05:10:50,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 86 transitions. [2024-11-09 05:10:50,449 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 86 transitions. Word has length 40 [2024-11-09 05:10:50,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:50,450 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 86 transitions. [2024-11-09 05:10:50,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.181818181818182) internal successors, (57), 12 states have internal predecessors, (57), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 05:10:50,450 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 86 transitions. [2024-11-09 05:10:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 05:10:50,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:50,453 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 1, 1] [2024-11-09 05:10:50,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:10:50,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:50,654 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:50,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:50,655 INFO L85 PathProgramCache]: Analyzing trace with hash 1958863532, now seen corresponding path program 3 times [2024-11-09 05:10:50,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:50,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378494723] [2024-11-09 05:10:50,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:50,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:50,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:50,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1730142618] [2024-11-09 05:10:50,718 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:10:50,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:50,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:50,720 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:50,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:10:50,798 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:10:50,799 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:10:50,800 INFO L255 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 05:10:50,803 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:51,022 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:10:51,022 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 05:10:51,627 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:51,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378494723] [2024-11-09 05:10:51,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:51,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1730142618] [2024-11-09 05:10:51,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1730142618] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:51,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1613445898] [2024-11-09 05:10:51,630 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:10:51,631 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:51,631 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:51,632 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:51,632 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:51,951 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:10:51,952 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:52,837 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1392#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_74| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_74| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_74| |v_ULTIMATE.start_main_~r~0#1_74|)) (<= 0 |v_ULTIMATE.start_main_~r~0#1_74|))))' at error location [2024-11-09 05:10:52,838 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:52,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:10:52,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-09 05:10:52,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482610097] [2024-11-09 05:10:52,839 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:52,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 05:10:52,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:52,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 05:10:52,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=187, Invalid=683, Unknown=0, NotChecked=0, Total=870 [2024-11-09 05:10:52,844 INFO L87 Difference]: Start difference. First operand 77 states and 86 transitions. Second operand has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:10:53,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:10:53,898 INFO L93 Difference]: Finished difference Result 162 states and 194 transitions. [2024-11-09 05:10:53,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 05:10:53,899 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 94 [2024-11-09 05:10:53,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:10:53,900 INFO L225 Difference]: With dead ends: 162 [2024-11-09 05:10:53,901 INFO L226 Difference]: Without dead ends: 161 [2024-11-09 05:10:53,902 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 241 SyntacticMatches, 11 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=427, Invalid=1133, Unknown=0, NotChecked=0, Total=1560 [2024-11-09 05:10:53,902 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 39 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:10:53,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 407 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-09 05:10:53,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-09 05:10:53,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-09 05:10:53,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 137 states have (on average 1.0072992700729928) internal successors, (138), 137 states have internal predecessors, (138), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 05:10:53,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 182 transitions. [2024-11-09 05:10:53,923 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 182 transitions. Word has length 94 [2024-11-09 05:10:53,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:10:53,924 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 182 transitions. [2024-11-09 05:10:53,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.608695652173913) internal successors, (129), 24 states have internal predecessors, (129), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 05:10:53,925 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 182 transitions. [2024-11-09 05:10:53,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-09 05:10:53,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:10:53,930 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 1, 1] [2024-11-09 05:10:53,950 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:10:54,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:54,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:10:54,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:10:54,131 INFO L85 PathProgramCache]: Analyzing trace with hash -1745635476, now seen corresponding path program 4 times [2024-11-09 05:10:54,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:10:54,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108522818] [2024-11-09 05:10:54,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:10:54,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:10:54,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:10:54,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [243040210] [2024-11-09 05:10:54,239 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:10:54,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:10:54,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:10:54,241 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:10:54,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:10:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:10:54,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 05:10:54,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:10:54,921 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 05:10:54,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:10:56,360 INFO L134 CoverageAnalysis]: Checked inductivity of 2145 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 05:10:56,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:10:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108522818] [2024-11-09 05:10:56,361 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:10:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243040210] [2024-11-09 05:10:56,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243040210] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:10:56,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [262920071] [2024-11-09 05:10:56,364 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:10:56,364 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:10:56,364 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:10:56,364 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:10:56,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:10:56,592 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:10:56,595 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:10:58,793 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '3089#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_123| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_123| |v_ULTIMATE.start_main_~r~0#1_123|)) (<= |v_ULTIMATE.start_main_~r~0#1_123| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_123|))))' at error location [2024-11-09 05:10:58,793 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:10:58,794 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:10:58,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-09 05:10:58,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932406338] [2024-11-09 05:10:58,794 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:10:58,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 05:10:58,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:10:58,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 05:10:58,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=643, Invalid=2219, Unknown=0, NotChecked=0, Total=2862 [2024-11-09 05:10:58,799 INFO L87 Difference]: Start difference. First operand 161 states and 182 transitions. Second operand has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 05:11:02,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:02,885 INFO L93 Difference]: Finished difference Result 330 states and 398 transitions. [2024-11-09 05:11:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 05:11:02,885 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 202 [2024-11-09 05:11:02,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:02,888 INFO L225 Difference]: With dead ends: 330 [2024-11-09 05:11:02,888 INFO L226 Difference]: Without dead ends: 329 [2024-11-09 05:11:02,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 529 SyntacticMatches, 23 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1055 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1699, Invalid=4001, Unknown=0, NotChecked=0, Total=5700 [2024-11-09 05:11:02,891 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 72 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 2829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:02,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1679 Invalid, 2829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-09 05:11:02,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-09 05:11:02,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2024-11-09 05:11:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 281 states have (on average 1.00355871886121) internal successors, (282), 281 states have internal predecessors, (282), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 05:11:02,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 374 transitions. [2024-11-09 05:11:02,926 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 374 transitions. Word has length 202 [2024-11-09 05:11:02,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:02,927 INFO L471 AbstractCegarLoop]: Abstraction has 329 states and 374 transitions. [2024-11-09 05:11:02,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.808510638297872) internal successors, (273), 48 states have internal predecessors, (273), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 05:11:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 374 transitions. [2024-11-09 05:11:02,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2024-11-09 05:11:02,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:02,937 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 1, 1] [2024-11-09 05:11:02,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 05:11:03,141 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-09 05:11:03,142 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:11:03,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:03,143 INFO L85 PathProgramCache]: Analyzing trace with hash 107020524, now seen corresponding path program 5 times [2024-11-09 05:11:03,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:03,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837494070] [2024-11-09 05:11:03,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:03,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:03,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960533345] [2024-11-09 05:11:03,406 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:11:03,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:03,406 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:03,408 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:03,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:11:03,937 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2024-11-09 05:11:03,937 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:03,940 INFO L255 TraceCheckSpWp]: Trace formula consists of 671 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-09 05:11:03,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 9453 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 2070 trivial. 0 not checked. [2024-11-09 05:11:05,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:05,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:05,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837494070] [2024-11-09 05:11:05,742 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:05,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960533345] [2024-11-09 05:11:05,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960533345] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:11:05,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1503309279] [2024-11-09 05:11:05,745 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:11:05,745 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:11:05,745 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:11:05,746 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:11:05,746 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:11:06,007 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:11:06,009 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:09,256 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5341#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_176| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_176|) (<= |v_ULTIMATE.start_main_~r~0#1_176| 2147483647) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_176| |v_ULTIMATE.start_main_~r~0#1_176|)))))' at error location [2024-11-09 05:11:09,256 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:09,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:11:09,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49] total 49 [2024-11-09 05:11:09,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113688360] [2024-11-09 05:11:09,257 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:09,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-09 05:11:09,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-09 05:11:09,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1264, Invalid=2276, Unknown=0, NotChecked=0, Total=3540 [2024-11-09 05:11:09,265 INFO L87 Difference]: Start difference. First operand 329 states and 374 transitions. Second operand has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 05:11:11,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:11,746 INFO L93 Difference]: Finished difference Result 341 states and 388 transitions. [2024-11-09 05:11:11,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2024-11-09 05:11:11,747 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 418 [2024-11-09 05:11:11,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:11,750 INFO L225 Difference]: With dead ends: 341 [2024-11-09 05:11:11,750 INFO L226 Difference]: Without dead ends: 340 [2024-11-09 05:11:11,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 897 GetRequests, 746 SyntacticMatches, 47 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4251 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=3748, Invalid=7382, Unknown=0, NotChecked=0, Total=11130 [2024-11-09 05:11:11,754 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 233 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:11,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 108 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 05:11:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-09 05:11:11,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 336. [2024-11-09 05:11:11,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 287 states have (on average 1.0034843205574913) internal successors, (288), 287 states have internal predecessors, (288), 47 states have call successors, (47), 1 states have call predecessors, (47), 1 states have return successors, (47), 47 states have call predecessors, (47), 47 states have call successors, (47) [2024-11-09 05:11:11,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 382 transitions. [2024-11-09 05:11:11,804 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 382 transitions. Word has length 418 [2024-11-09 05:11:11,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:11,805 INFO L471 AbstractCegarLoop]: Abstraction has 336 states and 382 transitions. [2024-11-09 05:11:11,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 5.73469387755102) internal successors, (281), 50 states have internal predecessors, (281), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 05:11:11,806 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 382 transitions. [2024-11-09 05:11:11,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-09 05:11:11,815 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:11,815 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 47, 47, 47, 47, 47, 47, 47, 1, 1] [2024-11-09 05:11:11,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:11:12,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 05:11:12,016 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:11:12,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:12,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1132332363, now seen corresponding path program 6 times [2024-11-09 05:11:12,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:12,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023857646] [2024-11-09 05:11:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:12,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:12,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425744123] [2024-11-09 05:11:12,196 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:11:12,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:12,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:12,198 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:12,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:11:12,384 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:11:12,384 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:11:12,387 INFO L255 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-09 05:11:12,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:13,874 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-09 05:11:13,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:11:18,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9870 backedges. 0 proven. 7708 refuted. 0 times theorem prover too weak. 2162 trivial. 0 not checked. [2024-11-09 05:11:18,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:11:18,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023857646] [2024-11-09 05:11:18,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:11:18,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425744123] [2024-11-09 05:11:18,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [425744123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:11:18,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1686599314] [2024-11-09 05:11:18,842 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:11:18,842 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:11:18,842 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:11:18,842 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:11:18,842 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:11:19,030 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:11:19,031 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:11:26,798 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8965#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_275| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_275| |v_ULTIMATE.start_main_~r~0#1_275|)) (<= |v_ULTIMATE.start_main_~r~0#1_275| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_275|))))' at error location [2024-11-09 05:11:26,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:11:26,798 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:11:26,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 97 [2024-11-09 05:11:26,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533974559] [2024-11-09 05:11:26,799 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:11:26,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-09 05:11:26,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:11:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-09 05:11:26,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2518, Invalid=8194, Unknown=0, NotChecked=0, Total=10712 [2024-11-09 05:11:26,807 INFO L87 Difference]: Start difference. First operand 336 states and 382 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 05:11:47,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:11:47,339 INFO L93 Difference]: Finished difference Result 680 states and 823 transitions. [2024-11-09 05:11:47,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2024-11-09 05:11:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 427 [2024-11-09 05:11:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:11:47,344 INFO L225 Difference]: With dead ends: 680 [2024-11-09 05:11:47,345 INFO L226 Difference]: Without dead ends: 679 [2024-11-09 05:11:47,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1326 GetRequests, 1129 SyntacticMatches, 48 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4005 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=7124, Invalid=15526, Unknown=0, NotChecked=0, Total=22650 [2024-11-09 05:11:47,350 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 147 mSDsluCounter, 6911 mSDsCounter, 0 mSdLazyCounter, 11855 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7104 SdHoareTripleChecker+Invalid, 11904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:11:47,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7104 Invalid, 11904 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [49 Valid, 11855 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-09 05:11:47,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 679 states. [2024-11-09 05:11:47,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 679 to 679. [2024-11-09 05:11:47,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 679 states, 581 states have (on average 1.0017211703958693) internal successors, (582), 581 states have internal predecessors, (582), 96 states have call successors, (96), 1 states have call predecessors, (96), 1 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-11-09 05:11:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 679 states to 679 states and 774 transitions. [2024-11-09 05:11:47,399 INFO L78 Accepts]: Start accepts. Automaton has 679 states and 774 transitions. Word has length 427 [2024-11-09 05:11:47,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:11:47,400 INFO L471 AbstractCegarLoop]: Abstraction has 679 states and 774 transitions. [2024-11-09 05:11:47,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 05:11:47,401 INFO L276 IsEmpty]: Start isEmpty. Operand 679 states and 774 transitions. [2024-11-09 05:11:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2024-11-09 05:11:47,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:11:47,440 INFO L215 NwaCegarLoop]: trace histogram [97, 97, 96, 96, 96, 96, 96, 96, 96, 1, 1] [2024-11-09 05:11:47,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:11:47,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:47,641 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:11:47,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:11:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1783973388, now seen corresponding path program 7 times [2024-11-09 05:11:47,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:11:47,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764432953] [2024-11-09 05:11:47,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:11:47,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:11:47,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:11:47,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569843348] [2024-11-09 05:11:47,988 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 05:11:47,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:11:47,989 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:11:47,994 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:11:47,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:11:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:11:48,306 INFO L255 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 195 conjuncts are in the unsatisfiable core [2024-11-09 05:11:48,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:11:52,979 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-09 05:11:52,980 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:12:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 41328 backedges. 0 proven. 32208 refuted. 0 times theorem prover too weak. 9120 trivial. 0 not checked. [2024-11-09 05:12:11,841 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:12:11,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764432953] [2024-11-09 05:12:11,841 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:12:11,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1569843348] [2024-11-09 05:12:11,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1569843348] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:12:11,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1210084908] [2024-11-09 05:12:11,844 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:12:11,844 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:12:11,844 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:12:11,845 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:12:11,845 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:12:12,067 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:12:12,068 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:12:43,564 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '16212#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_472| Int)) (and (<= |v_ULTIMATE.start_main_~r~0#1_472| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_472|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_472| |v_ULTIMATE.start_main_~r~0#1_472|)))))' at error location [2024-11-09 05:12:43,564 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:12:43,564 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:12:43,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 195 [2024-11-09 05:12:43,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488304504] [2024-11-09 05:12:43,565 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:12:43,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2024-11-09 05:12:43,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:12:43,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2024-11-09 05:12:43,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9819, Invalid=30783, Unknown=0, NotChecked=0, Total=40602 [2024-11-09 05:12:43,583 INFO L87 Difference]: Start difference. First operand 679 states and 774 transitions. Second operand has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-09 05:14:50,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:14:50,889 INFO L93 Difference]: Finished difference Result 1366 states and 1656 transitions. [2024-11-09 05:14:50,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2024-11-09 05:14:50,891 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) Word has length 868 [2024-11-09 05:14:50,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:14:50,902 INFO L225 Difference]: With dead ends: 1366 [2024-11-09 05:14:50,902 INFO L226 Difference]: Without dead ends: 1365 [2024-11-09 05:14:50,914 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2698 GetRequests, 2305 SyntacticMatches, 97 SemanticMatches, 296 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15226 ImplicationChecksByTransitivity, 159.9s TimeCoverageRelationStatistics Valid=28635, Invalid=59871, Unknown=0, NotChecked=0, Total=88506 [2024-11-09 05:14:50,915 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 297 mSDsluCounter, 28614 mSDsCounter, 0 mSdLazyCounter, 47731 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 29003 SdHoareTripleChecker+Invalid, 47830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 47731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:14:50,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 29003 Invalid, 47830 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [99 Valid, 47731 Invalid, 0 Unknown, 0 Unchecked, 16.0s Time] [2024-11-09 05:14:50,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2024-11-09 05:14:51,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1365. [2024-11-09 05:14:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1365 states, 1169 states have (on average 1.0008554319931566) internal successors, (1170), 1169 states have internal predecessors, (1170), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 05:14:51,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1365 states to 1365 states and 1558 transitions. [2024-11-09 05:14:51,019 INFO L78 Accepts]: Start accepts. Automaton has 1365 states and 1558 transitions. Word has length 868 [2024-11-09 05:14:51,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:14:51,021 INFO L471 AbstractCegarLoop]: Abstraction has 1365 states and 1558 transitions. [2024-11-09 05:14:51,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 195 states have (on average 5.953846153846154) internal successors, (1161), 196 states have internal predecessors, (1161), 192 states have call successors, (192), 1 states have call predecessors, (192), 1 states have return successors, (192), 192 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-09 05:14:51,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1365 states and 1558 transitions. [2024-11-09 05:14:51,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1751 [2024-11-09 05:14:51,055 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:14:51,056 INFO L215 NwaCegarLoop]: trace histogram [195, 195, 194, 194, 194, 194, 194, 194, 194, 1, 1] [2024-11-09 05:14:51,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 05:14:51,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:14:51,257 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:14:51,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:14:51,258 INFO L85 PathProgramCache]: Analyzing trace with hash 858609196, now seen corresponding path program 8 times [2024-11-09 05:14:51,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:14:51,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895405715] [2024-11-09 05:14:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:14:51,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:14:52,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:14:52,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [799716366] [2024-11-09 05:14:52,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:14:52,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:14:52,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:14:52,142 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:14:52,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:14:55,531 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 195 check-sat command(s) [2024-11-09 05:14:55,532 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:14:55,544 INFO L255 TraceCheckSpWp]: Trace formula consists of 2743 conjuncts, 198 conjuncts are in the unsatisfiable core [2024-11-09 05:14:55,620 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:15:13,458 INFO L134 CoverageAnalysis]: Checked inductivity of 169071 backedges. 0 proven. 131629 refuted. 0 times theorem prover too weak. 37442 trivial. 0 not checked. [2024-11-09 05:15:13,458 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:15:14,572 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:15:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895405715] [2024-11-09 05:15:14,572 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:15:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [799716366] [2024-11-09 05:15:14,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [799716366] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:15:14,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1667126120] [2024-11-09 05:15:14,575 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:15:14,575 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:15:14,575 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:15:14,576 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:15:14,576 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:15:14,747 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:15:14,748 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:15:56,610 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '25420#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_673| Int)) (and (<= 0 |v_ULTIMATE.start_main_~r~0#1_673|) (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_673| |v_ULTIMATE.start_main_~r~0#1_673|)) (<= |v_ULTIMATE.start_main_~r~0#1_673| 2147483647))))' at error location [2024-11-09 05:15:56,610 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:15:56,611 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:15:56,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197] total 197 [2024-11-09 05:15:56,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90459307] [2024-11-09 05:15:56,611 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 05:15:56,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2024-11-09 05:15:56,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:15:56,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2024-11-09 05:15:56,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19542, Invalid=23514, Unknown=0, NotChecked=0, Total=43056 [2024-11-09 05:15:56,628 INFO L87 Difference]: Start difference. First operand 1365 states and 1558 transitions. Second operand has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 05:16:28,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:16:28,737 INFO L93 Difference]: Finished difference Result 1377 states and 1572 transitions. [2024-11-09 05:16:28,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2024-11-09 05:16:28,739 INFO L78 Accepts]: Start accepts. Automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) Word has length 1750 [2024-11-09 05:16:28,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:16:28,747 INFO L225 Difference]: With dead ends: 1377 [2024-11-09 05:16:28,748 INFO L226 Difference]: Without dead ends: 1376 [2024-11-09 05:16:28,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3709 GetRequests, 3114 SyntacticMatches, 195 SemanticMatches, 400 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60861 ImplicationChecksByTransitivity, 87.4s TimeCoverageRelationStatistics Valid=58730, Invalid=102472, Unknown=0, NotChecked=0, Total=161202 [2024-11-09 05:16:28,761 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 973 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 389 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 389 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:16:28,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 402 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [389 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-09 05:16:28,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1376 states. [2024-11-09 05:16:28,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1376 to 1372. [2024-11-09 05:16:28,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1372 states, 1175 states have (on average 1.0008510638297872) internal successors, (1176), 1175 states have internal predecessors, (1176), 195 states have call successors, (195), 1 states have call predecessors, (195), 1 states have return successors, (195), 195 states have call predecessors, (195), 195 states have call successors, (195) [2024-11-09 05:16:28,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1372 states to 1372 states and 1566 transitions. [2024-11-09 05:16:28,869 INFO L78 Accepts]: Start accepts. Automaton has 1372 states and 1566 transitions. Word has length 1750 [2024-11-09 05:16:28,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:16:28,872 INFO L471 AbstractCegarLoop]: Abstraction has 1372 states and 1566 transitions. [2024-11-09 05:16:28,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 198 states, 197 states have (on average 5.934010152284264) internal successors, (1169), 198 states have internal predecessors, (1169), 194 states have call successors, (194), 1 states have call predecessors, (194), 1 states have return successors, (194), 194 states have call predecessors, (194), 194 states have call successors, (194) [2024-11-09 05:16:28,874 INFO L276 IsEmpty]: Start isEmpty. Operand 1372 states and 1566 transitions. [2024-11-09 05:16:28,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1760 [2024-11-09 05:16:28,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:16:28,902 INFO L215 NwaCegarLoop]: trace histogram [196, 196, 195, 195, 195, 195, 195, 195, 195, 1, 1] [2024-11-09 05:16:28,929 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:16:29,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:16:29,103 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 05:16:29,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:16:29,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1440641675, now seen corresponding path program 9 times [2024-11-09 05:16:29,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:16:29,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168686597] [2024-11-09 05:16:29,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:16:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:16:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 05:16:29,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1999172441] [2024-11-09 05:16:29,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 05:16:29,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:16:29,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:16:29,929 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:16:29,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51dfeee6-5f93-46ca-850f-c1a50497b0ce/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 05:16:30,650 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 05:16:30,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:16:30,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 2757 conjuncts, 393 conjuncts are in the unsatisfiable core [2024-11-09 05:16:30,696 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:16:48,230 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-09 05:16:48,231 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:18:00,597 INFO L134 CoverageAnalysis]: Checked inductivity of 170820 backedges. 0 proven. 132990 refuted. 0 times theorem prover too weak. 37830 trivial. 0 not checked. [2024-11-09 05:18:00,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:18:00,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168686597] [2024-11-09 05:18:00,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 05:18:00,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1999172441] [2024-11-09 05:18:00,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1999172441] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:18:00,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1083789233] [2024-11-09 05:18:00,600 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2024-11-09 05:18:00,600 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:18:00,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:18:00,601 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:18:00,601 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:18:00,794 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 9 for LOIs [2024-11-09 05:18:00,796 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:20:02,662 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '40292#(and (<= 1 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_main_~r~0#1_1068| Int)) (and (<= 2147483648 (* |v_ULTIMATE.start_main_~r~0#1_1068| |v_ULTIMATE.start_main_~r~0#1_1068|)) (<= |v_ULTIMATE.start_main_~r~0#1_1068| 2147483647) (<= 0 |v_ULTIMATE.start_main_~r~0#1_1068|))))' at error location [2024-11-09 05:20:02,662 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:20:02,662 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 05:20:02,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [197, 197] total 393 [2024-11-09 05:20:02,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777011980] [2024-11-09 05:20:02,664 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 05:20:02,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 394 states [2024-11-09 05:20:02,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:20:02,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 394 interpolants. [2024-11-09 05:20:02,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39222, Invalid=120378, Unknown=0, NotChecked=0, Total=159600 [2024-11-09 05:20:02,697 INFO L87 Difference]: Start difference. First operand 1372 states and 1566 transitions. Second operand has 394 states, 393 states have (on average 5.977099236641221) internal successors, (2349), 394 states have internal predecessors, (2349), 390 states have call successors, (390), 1 states have call predecessors, (390), 1 states have return successors, (390), 390 states have call predecessors, (390), 390 states have call successors, (390)