./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/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_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 142fac26e58e32d5894ddee72fe19273cb83800658fff05eab06588458831b6c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:31:02,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:31:02,267 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-32bit-Taipan_Default.epf [2024-11-09 04:31:02,274 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:31:02,274 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:31:02,319 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:31:02,320 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:31:02,320 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:31:02,321 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:31:02,327 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:31:02,327 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:31:02,328 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:31:02,328 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:31:02,329 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:31:02,329 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:31:02,330 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:31:02,330 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:31:02,331 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:31:02,331 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:31:02,332 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:31:02,332 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:31:02,333 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:31:02,334 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:31:02,335 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:31:02,335 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:31:02,336 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:31:02,336 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:31:02,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:31:02,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:31:02,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:31:02,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:31:02,340 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:31:02,340 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:31:02,341 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:31:02,341 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:31:02,341 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:31:02,342 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:31:02,342 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:31:02,343 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:02,343 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:31:02,344 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:31:02,344 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:31:02,345 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:31:02,345 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:31:02,346 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:31:02,346 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:31:02,347 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:31:02,347 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_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 142fac26e58e32d5894ddee72fe19273cb83800658fff05eab06588458831b6c [2024-11-09 04:31:02,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:31:02,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:31:02,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:31:02,714 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:31:02,716 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:31:02,717 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c Unable to find full path for "g++" [2024-11-09 04:31:04,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:31:05,155 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:31:05,155 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c [2024-11-09 04:31:05,165 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/data/bbd0244b3/02993d27560940f8a83b90955e8ef1e4/FLAGa530a769e [2024-11-09 04:31:05,183 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/data/bbd0244b3/02993d27560940f8a83b90955e8ef1e4 [2024-11-09 04:31:05,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:31:05,190 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:31:05,192 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:05,195 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:31:05,202 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:31:05,203 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,204 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f65abde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05, skipping insertion in model container [2024-11-09 04:31:05,204 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,227 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:31:05,442 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c[545,558] [2024-11-09 04:31:05,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:05,476 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:31:05,490 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/sv-benchmarks/c/nla-digbench-scaling/geo1-ll_valuebound50.c[545,558] [2024-11-09 04:31:05,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:31:05,520 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:31:05,520 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05 WrapperNode [2024-11-09 04:31:05,520 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:31:05,522 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:05,522 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:31:05,522 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:31:05,532 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,562 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 42 [2024-11-09 04:31:05,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:31:05,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:31:05,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:31:05,564 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:31:05,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,577 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,580 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,584 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,585 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,587 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,589 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:31:05,590 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:31:05,590 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:31:05,590 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:31:05,592 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (1/1) ... [2024-11-09 04:31:05,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:31:05,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:05,642 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:31:05,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:31:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:31:05,687 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:31:05,687 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:31:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 04:31:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:31:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:31:05,688 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 04:31:05,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 04:31:05,757 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:31:05,759 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:31:05,942 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-11-09 04:31:05,942 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:31:05,981 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:31:05,981 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:31:05,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05 BoogieIcfgContainer [2024-11-09 04:31:05,982 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:31:05,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:31:05,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:31:05,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:31:05,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:31:05" (1/3) ... [2024-11-09 04:31:05,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148c79bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:05, skipping insertion in model container [2024-11-09 04:31:05,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:31:05" (2/3) ... [2024-11-09 04:31:05,992 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@148c79bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:31:05, skipping insertion in model container [2024-11-09 04:31:05,992 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05" (3/3) ... [2024-11-09 04:31:05,994 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-ll_valuebound50.c [2024-11-09 04:31:06,036 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:31:06,036 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:31:06,105 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:31:06,114 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;@40dc0e8f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:31:06,114 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:31:06,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 04:31:06,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 04:31:06,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:06,130 INFO L215 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:06,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:06,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:06,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1079447202, now seen corresponding path program 1 times [2024-11-09 04:31:06,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:06,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569629076] [2024-11-09 04:31:06,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:06,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:06,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1060504668] [2024-11-09 04:31:06,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:06,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:06,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:06,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:06,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:31:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:06,437 INFO L255 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 04:31:06,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:31:06,650 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:06,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:06,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569629076] [2024-11-09 04:31:06,652 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060504668] [2024-11-09 04:31:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060504668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:06,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:31:06,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 04:31:06,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456989177] [2024-11-09 04:31:06,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:06,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 04:31:06,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:06,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 04:31:06,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:31:06,709 INFO L87 Difference]: Start difference. First operand has 22 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 04:31:06,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:06,816 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2024-11-09 04:31:06,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:31:06,820 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 20 [2024-11-09 04:31:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:06,830 INFO L225 Difference]: With dead ends: 43 [2024-11-09 04:31:06,830 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 04:31:06,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:31:06,839 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 4 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:06,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 70 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 04:31:06,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2024-11-09 04:31:06,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 17 states have internal predecessors, (17), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 04:31:06,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2024-11-09 04:31:06,898 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 20 [2024-11-09 04:31:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:06,899 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2024-11-09 04:31:06,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 04:31:06,899 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2024-11-09 04:31:06,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 04:31:06,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:06,902 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:06,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:31:07,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 04:31:07,103 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:07,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:07,105 INFO L85 PathProgramCache]: Analyzing trace with hash -2095502483, now seen corresponding path program 1 times [2024-11-09 04:31:07,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:07,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313091801] [2024-11-09 04:31:07,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:07,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:07,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:07,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:31:07,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:07,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313091801] [2024-11-09 04:31:07,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313091801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:31:07,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234830566] [2024-11-09 04:31:07,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:07,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:07,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:07,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:07,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:31:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:08,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-09 04:31:08,045 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:08,219 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:31:08,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 04:31:08,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234830566] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:31:08,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:31:08,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-09 04:31:08,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571640504] [2024-11-09 04:31:08,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:31:08,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:31:08,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:08,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:31:08,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-09 04:31:08,225 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:31:08,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:08,324 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2024-11-09 04:31:08,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 04:31:08,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 27 [2024-11-09 04:31:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:08,326 INFO L225 Difference]: With dead ends: 35 [2024-11-09 04:31:08,326 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 04:31:08,327 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:31:08,332 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:08,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 82 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:31:08,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 04:31:08,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 04:31:08,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 16 states have (on average 1.125) internal successors, (18), 17 states have internal predecessors, (18), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-09 04:31:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-09 04:31:08,346 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 27 [2024-11-09 04:31:08,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:08,346 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-09 04:31:08,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 04:31:08,347 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-09 04:31:08,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 04:31:08,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:08,348 INFO L215 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:08,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:31:08,549 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:08,550 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:08,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:08,552 INFO L85 PathProgramCache]: Analyzing trace with hash -2047538973, now seen corresponding path program 1 times [2024-11-09 04:31:08,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:08,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036091946] [2024-11-09 04:31:08,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:08,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:08,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:31:08,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [769147627] [2024-11-09 04:31:08,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:08,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:08,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:08,624 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:08,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 04:31:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:08,702 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-09 04:31:08,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:08,885 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-09 04:31:08,885 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:11,150 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 2 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:31:11,151 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036091946] [2024-11-09 04:31:11,151 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:31:11,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [769147627] [2024-11-09 04:31:11,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [769147627] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:11,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2023642529] [2024-11-09 04:31:11,197 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 04:31:11,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:31:11,204 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:31:11,211 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:31:11,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:31:12,794 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:31:12,925 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 04:31:12,927 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:19,162 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '547#(and (= |__VERIFIER_assert_#in~cond| 0) (exists ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_13| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_22| Int)) (and (<= 1 |#StackHeapBarrier|) (<= 1 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_13|) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_22|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_13| 50) (not (= (mod (+ (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_22| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_13|) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_13| 18446744073709551615) 1) 18446744073709551616) 0)) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_7|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_22| 50))))' at error location [2024-11-09 04:31:19,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:31:19,163 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 04:31:19,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 10 [2024-11-09 04:31:19,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205709333] [2024-11-09 04:31:19,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 04:31:19,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:31:19,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:19,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:31:19,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=460, Unknown=3, NotChecked=0, Total=552 [2024-11-09 04:31:19,168 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 04:31:27,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:33,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:35,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:37,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:39,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:41,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:31:41,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:31:41,395 INFO L93 Difference]: Finished difference Result 45 states and 54 transitions. [2024-11-09 04:31:41,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:31:41,396 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 27 [2024-11-09 04:31:41,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:31:41,399 INFO L225 Difference]: With dead ends: 45 [2024-11-09 04:31:41,399 INFO L226 Difference]: Without dead ends: 43 [2024-11-09 04:31:41,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 55 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 17.9s TimeCoverageRelationStatistics Valid=108, Invalid=588, Unknown=6, NotChecked=0, Total=702 [2024-11-09 04:31:41,403 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 19 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 6 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:31:41,404 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 90 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 96 Invalid, 6 Unknown, 0 Unchecked, 12.6s Time] [2024-11-09 04:31:41,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-09 04:31:41,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 39. [2024-11-09 04:31:41,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 26 states have internal predecessors, (28), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 04:31:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 47 transitions. [2024-11-09 04:31:41,430 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 47 transitions. Word has length 27 [2024-11-09 04:31:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:31:41,431 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 47 transitions. [2024-11-09 04:31:41,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 8 states have internal predecessors, (18), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-09 04:31:41,432 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2024-11-09 04:31:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 04:31:41,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:31:41,436 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:31:41,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 04:31:41,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 04:31:41,637 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:31:41,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:31:41,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1759139340, now seen corresponding path program 1 times [2024-11-09 04:31:41,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:31:41,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343226434] [2024-11-09 04:31:41,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:31:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 04:31:42,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:31:42,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343226434] [2024-11-09 04:31:42,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343226434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:31:42,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1780550596] [2024-11-09 04:31:42,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:31:42,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:31:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:31:42,083 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:31:42,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 04:31:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:31:42,159 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-09 04:31:42,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:31:46,431 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 04:31:46,431 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:31:46,731 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 04:31:46,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1780550596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:31:46,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [463304439] [2024-11-09 04:31:46,734 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2024-11-09 04:31:46,734 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:31:46,735 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:31:46,735 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:31:46,735 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:31:47,461 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 62 for LOIs [2024-11-09 04:31:47,558 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 04:31:47,560 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:31:54,503 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '906#(and (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_46| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_33| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_27| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18| Int)) (and (<= 1 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_33|) (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_33| 50) (not (= (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_46| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_27|) (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_27| 18446744073709551615) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_27|) 1) 18446744073709551616) 0)) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_46| 50) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_18|) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_46|))) (= |__VERIFIER_assert_#in~cond| 0))' at error location [2024-11-09 04:31:54,504 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:31:54,504 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:31:54,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 11 [2024-11-09 04:31:54,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51528585] [2024-11-09 04:31:54,505 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:31:54,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:31:54,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:31:54,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:31:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=599, Unknown=4, NotChecked=0, Total=702 [2024-11-09 04:31:54,507 INFO L87 Difference]: Start difference. First operand 39 states and 47 transitions. Second operand has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 04:31:56,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:31:58,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:32:00,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-09 04:32:02,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:32:04,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:32:04,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:32:04,775 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2024-11-09 04:32:04,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 04:32:04,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) Word has length 34 [2024-11-09 04:32:04,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:32:04,781 INFO L225 Difference]: With dead ends: 45 [2024-11-09 04:32:04,781 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 04:32:04,784 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 78 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=107, Invalid=645, Unknown=4, NotChecked=0, Total=756 [2024-11-09 04:32:04,785 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:32:04,786 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 118 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 62 Invalid, 5 Unknown, 0 Unchecked, 10.2s Time] [2024-11-09 04:32:04,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 04:32:04,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 04:32:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 24 states have internal predecessors, (24), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-09 04:32:04,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 42 transitions. [2024-11-09 04:32:04,805 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 42 transitions. Word has length 34 [2024-11-09 04:32:04,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:32:04,806 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 42 transitions. [2024-11-09 04:32:04,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 04:32:04,806 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 42 transitions. [2024-11-09 04:32:04,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 04:32:04,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:32:04,810 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:32:04,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 04:32:05,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:05,011 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:32:05,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:32:05,011 INFO L85 PathProgramCache]: Analyzing trace with hash 1069764706, now seen corresponding path program 2 times [2024-11-09 04:32:05,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:32:05,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998172183] [2024-11-09 04:32:05,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:32:05,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:32:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 04:32:05,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1725857859] [2024-11-09 04:32:05,087 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:32:05,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:32:05,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:32:05,089 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:32:05,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 04:32:12,518 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 04:32:12,518 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:32:12,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-09 04:32:12,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:32:27,428 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:32:35,531 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:32:47,583 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:32:57,619 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:33:01,646 WARN L851 $PredicateComparison]: unable to prove that (or (= |c___VERIFIER_assert_#in~cond| 1) (and (= |c___VERIFIER_assert_#in~cond| 0) (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= .cse0 0) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse0)) 18446744073709551616) 0))))) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50) (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= 1 .cse1) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse1)) 18446744073709551616) 0)))))))))) is different from false [2024-11-09 04:33:09,713 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:33:19,739 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:34:11,322 WARN L286 SmtUtils]: Spent 36.11s on a formula simplification that was a NOOP. DAG size: 36 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 04:34:19,359 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:34:29,438 WARN L286 SmtUtils]: Spent 6.02s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:34:33,457 WARN L851 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= .cse0 0) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse0)) 18446744073709551616) 0))))) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50) (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= 1 .cse1) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse1)) 18446744073709551616) 0)))))))) is different from false [2024-11-09 04:34:35,459 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= .cse0 0) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse0)) 18446744073709551616) 0))))) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50) (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= 1 .cse1) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse1)) 18446744073709551616) 0)))))))) is different from true [2024-11-09 04:34:35,460 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 27 proven. 3 refuted. 1 times theorem prover too weak. 39 trivial. 0 not checked. [2024-11-09 04:34:35,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:35:03,898 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:35:11,921 WARN L286 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 11 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-09 04:35:15,940 WARN L873 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~x~0#1| Int)) (let ((.cse0 (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616))) (or (< 0 .cse0) (= (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 .cse0 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0)))) (forall ((|ULTIMATE.start_main_~x~0#1| Int)) (let ((.cse1 (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 |ULTIMATE.start_main_~x~0#1|) 1) 18446744073709551616))) (or (< .cse1 1) (= (mod (+ (* |c_ULTIMATE.start_main_~z~0#1| |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) |c_ULTIMATE.start_main_~z~0#1| (* 18446744073709551615 |c_ULTIMATE.start_main_~z~0#1| |ULTIMATE.start_main_~x~0#1|) (* 18446744073709551615 .cse1 |c_ULTIMATE.start_main_~z~0#1|)) 18446744073709551616) 0))))) is different from true [2024-11-09 04:35:15,942 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:35:15,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998172183] [2024-11-09 04:35:15,942 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 04:35:15,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725857859] [2024-11-09 04:35:15,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725857859] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:35:15,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1295995882] [2024-11-09 04:35:15,946 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 04:35:15,946 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:35:15,947 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:35:15,947 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:35:15,948 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:35:16,760 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 37 for LOIs [2024-11-09 04:35:16,820 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 3 for LOIs [2024-11-09 04:35:16,822 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:36:06,036 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1230#(and (exists ((|v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_35| Int) (|v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_25| Int) (|v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_35| Int) (|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_73| Int) (|v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_49| Int)) (and (<= 1 |#StackHeapBarrier|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_73| 50) (<= 1 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_73|) (<= 1 |v_ULTIMATE.start_main_~c~0#1_BEFORE_CALL_25|) (<= |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_49| 50) (<= 1 |v_ULTIMATE.start_main_~k~0#1_BEFORE_CALL_49|) (not (= (mod (+ (* |v_ULTIMATE.start_main_~y~0#1_BEFORE_CALL_35| 18446744073709551615) (* 18446744073709551615 |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_35|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_73| |v_ULTIMATE.start_main_~x~0#1_BEFORE_CALL_35|) 1) 18446744073709551616) 0)))) (= |__VERIFIER_assert_#in~cond| 0))' at error location [2024-11-09 04:36:06,036 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:36:06,036 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 04:36:06,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-09 04:36:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413874528] [2024-11-09 04:36:06,037 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 04:36:06,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 04:36:06,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:36:06,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 04:36:06,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=571, Unknown=35, NotChecked=156, Total=870 [2024-11-09 04:36:06,039 INFO L87 Difference]: Start difference. First operand 37 states and 42 transitions. Second operand has 11 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 04:36:22,207 WARN L873 $PredicateComparison]: unable to prove that (and (not (= |c___VERIFIER_assert_#in~cond| 0)) (or (= c___VERIFIER_assert_~cond 1) (and (= c___VERIFIER_assert_~cond 0) (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= .cse0 0) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse0)) 18446744073709551616) 0))))) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50) (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= 1 .cse1) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse1)) 18446744073709551616) 0)))))))))) (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond)) is different from true [2024-11-09 04:36:24,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:26,310 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:28,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-09 04:36:30,338 WARN L851 $PredicateComparison]: unable to prove that (and (or (= c___VERIFIER_assert_~cond 1) (and (= c___VERIFIER_assert_~cond 0) (or (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse0 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= .cse0 0) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse0)) 18446744073709551616) 0))))) (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50))) (exists ((|v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| Int)) (and (<= 0 |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58|) (<= |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 50) (exists ((|v_ULTIMATE.start_main_~x~0#1_34| Int)) (let ((.cse1 (mod (+ (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) 1) 18446744073709551616))) (and (<= 1 .cse1) (not (= (mod (+ |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34| 18446744073709551615) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| |v_ULTIMATE.start_main_~x~0#1_34|) (* |v_ULTIMATE.start_main_~z~0#1_BEFORE_CALL_58| 18446744073709551615 .cse1)) 18446744073709551616) 0)))))))))) (= |c___VERIFIER_assert_#in~cond| c___VERIFIER_assert_~cond)) is different from false [2024-11-09 04:36:30,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:36:30,347 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2024-11-09 04:36:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 04:36:30,348 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2024-11-09 04:36:30,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:36:30,348 INFO L225 Difference]: With dead ends: 37 [2024-11-09 04:36:30,349 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:36:30,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 71 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 143.0s TimeCoverageRelationStatistics Valid=123, Invalid=667, Unknown=42, NotChecked=290, Total=1122 [2024-11-09 04:36:30,351 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 4 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 71 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:36:30,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 51 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 65 Invalid, 3 Unknown, 71 Unchecked, 6.2s Time] [2024-11-09 04:36:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:36:30,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:36:30,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:36:30,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:36:30,353 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2024-11-09 04:36:30,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:36:30,353 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:36:30,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 04:36:30,354 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:36:30,354 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:36:30,357 INFO L782 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-09 04:36:30,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 04:36:30,557 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:36:30,561 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2024-11-09 04:36:30,564 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:38:58,763 WARN L286 SmtUtils]: Spent 2.47m on a formula simplification. DAG size of input: 62 DAG size of output: 52 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:39:29,246 WARN L286 SmtUtils]: Spent 30.48s on a formula simplification. DAG size of input: 70 DAG size of output: 38 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:41:19,328 WARN L286 SmtUtils]: Spent 1.83m on a formula simplification. DAG size of input: 62 DAG size of output: 52 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:41:45,973 WARN L286 SmtUtils]: Spent 26.64s on a formula simplification. DAG size of input: 70 DAG size of output: 38 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 04:41:48,014 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:41:48,029 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,030 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,114 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,118 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,119 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 04:41:48,120 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:41:48 BoogieIcfgContainer [2024-11-09 04:41:48,120 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:41:48,121 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:41:48,121 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:41:48,121 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:41:48,122 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:31:05" (3/4) ... [2024-11-09 04:41:48,129 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:41:48,141 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-09 04:41:48,142 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-09 04:41:48,146 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2024-11-09 04:41:48,149 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-09 04:41:48,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 04:41:48,150 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:41:48,270 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:41:48,271 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:41:48,271 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:41:48,272 INFO L158 Benchmark]: Toolchain (without parser) took 643082.02ms. Allocated memory was 134.2MB in the beginning and 222.3MB in the end (delta: 88.1MB). Free memory was 93.9MB in the beginning and 101.7MB in the end (delta: -7.8MB). Peak memory consumption was 81.6MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,273 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:41:48,273 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.69ms. Allocated memory is still 134.2MB. Free memory was 93.7MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,274 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.80ms. Allocated memory is still 134.2MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:41:48,274 INFO L158 Benchmark]: Boogie Preprocessor took 25.67ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 932.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,275 INFO L158 Benchmark]: RCFGBuilder took 392.12ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 78.7MB in the beginning and 154.9MB in the end (delta: -76.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,275 INFO L158 Benchmark]: TraceAbstraction took 642135.02ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 154.2MB in the beginning and 105.9MB in the end (delta: 48.2MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,276 INFO L158 Benchmark]: Witness Printer took 150.92ms. Allocated memory is still 222.3MB. Free memory was 105.9MB in the beginning and 101.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-09 04:41:48,278 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 134.2MB. Free memory is still 80.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 328.69ms. Allocated memory is still 134.2MB. Free memory was 93.7MB in the beginning and 81.0MB in the end (delta: 12.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.80ms. Allocated memory is still 134.2MB. Free memory was 81.0MB in the beginning and 79.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 25.67ms. Allocated memory is still 134.2MB. Free memory was 79.6MB in the beginning and 78.7MB in the end (delta: 932.4kB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 392.12ms. Allocated memory was 134.2MB in the beginning and 184.5MB in the end (delta: 50.3MB). Free memory was 78.7MB in the beginning and 154.9MB in the end (delta: -76.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * TraceAbstraction took 642135.02ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 154.2MB in the beginning and 105.9MB in the end (delta: 48.2MB). Peak memory consumption was 129.5MB. Max. memory is 16.1GB. * Witness Printer took 150.92ms. Allocated memory is still 222.3MB. Free memory was 105.9MB in the beginning and 101.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 324.5s, OverallIterations: 5, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 57.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 29.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 411 SdHoareTripleChecker+Invalid, 29.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 71 IncrementalHoareTripleChecker+Unchecked, 338 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 293 IncrementalHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 73 mSDtfsCounter, 293 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 352 GetRequests, 245 SyntacticMatches, 10 SemanticMatches, 97 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 501 ImplicationChecksByTransitivity, 172.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39occurred in iteration=3, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 7.7s SatisfiabilityAnalysisTime, 192.1s InterpolantComputationTime, 312 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 269 ConstructedInterpolants, 6 QuantifiedInterpolants, 1325 SizeOfPredicates, 5 NumberOfNonLiveVariables, 386 ConjunctsInSsa, 58 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 198/211 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: ((z <= 50) && (1 <= z)) - ProcedureContractResult [Line: 12]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (cond != 0) - ProcedureContractResult [Line: 15]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((cond == 0) || (0 < cond)) Ensures: ((cond == 0) || (0 < cond)) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:41:48,494 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 04:41:48,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1bf646b-fd39-4b99-a2d4-9e3e46572e86/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE