./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/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_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:26:18,264 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:26:18,383 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 07:26:18,393 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:26:18,394 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:26:18,441 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:26:18,442 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:26:18,442 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:26:18,443 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:26:18,445 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:26:18,447 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:26:18,448 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:26:18,448 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:26:18,449 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:26:18,449 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:26:18,453 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:26:18,453 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:26:18,454 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:26:18,454 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:26:18,458 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:26:18,458 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:26:18,459 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:26:18,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:26:18,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:26:18,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 07:26:18,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:26:18,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 07:26:18,464 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:26:18,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:26:18,465 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:26:18,465 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:26:18,467 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:26:18,467 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 07:26:18,468 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 07:26:18,469 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 07:26:18,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:26:18,469 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:26:18,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:26:18,470 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:26:18,471 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:26:18,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:26:18,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:26:18,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:26:18,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:26:18,473 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:26:18,473 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:26:18,474 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:26:18,474 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:26:18,474 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:26:18,475 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_e60a4788-013e-43f7-802a-7a3379959cd7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 [2024-11-09 07:26:18,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:26:18,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:26:18,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:26:18,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:26:18,868 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:26:18,869 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i Unable to find full path for "g++" [2024-11-09 07:26:21,264 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:26:21,579 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:26:21,579 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2024-11-09 07:26:21,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/data/42e2e4fdd/4b5d0c447a4c4e9aa5593024740b9711/FLAG03ba03d80 [2024-11-09 07:26:21,614 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/data/42e2e4fdd/4b5d0c447a4c4e9aa5593024740b9711 [2024-11-09 07:26:21,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:26:21,620 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:26:21,621 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:26:21,621 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:26:21,629 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:26:21,630 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:26:21" (1/1) ... [2024-11-09 07:26:21,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74c2e304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:21, skipping insertion in model container [2024-11-09 07:26:21,632 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:26:21" (1/1) ... [2024-11-09 07:26:21,694 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:26:22,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:26:22,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:26:22,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:26:22,339 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:26:22,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22 WrapperNode [2024-11-09 07:26:22,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:26:22,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:26:22,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:26:22,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:26:22,353 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,377 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,414 INFO L138 Inliner]: procedures = 127, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 110 [2024-11-09 07:26:22,415 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:26:22,416 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:26:22,416 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:26:22,417 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:26:22,429 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,429 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,434 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,434 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,449 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,458 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,460 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:26:22,472 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:26:22,472 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:26:22,472 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:26:22,473 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (1/1) ... [2024-11-09 07:26:22,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:26:22,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:22,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:26:22,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:26:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:26:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:26:22,575 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-11-09 07:26:22,576 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-11-09 07:26:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:26:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:26:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:26:22,576 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:26:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:26:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:26:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:26:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:26:22,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:26:22,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:26:22,758 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:26:22,761 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:26:23,047 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-09 07:26:23,048 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:26:23,137 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:26:23,137 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 07:26:23,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:26:23 BoogieIcfgContainer [2024-11-09 07:26:23,138 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:26:23,143 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:26:23,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:26:23,148 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:26:23,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:26:21" (1/3) ... [2024-11-09 07:26:23,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25061c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:26:23, skipping insertion in model container [2024-11-09 07:26:23,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:26:22" (2/3) ... [2024-11-09 07:26:23,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25061c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:26:23, skipping insertion in model container [2024-11-09 07:26:23,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:26:23" (3/3) ... [2024-11-09 07:26:23,156 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_prepend_equal.i [2024-11-09 07:26:23,180 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:26:23,180 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 07:26:23,264 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:26:23,274 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;@106e91e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:26:23,274 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 07:26:23,287 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:23,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 07:26:23,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:23,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:23,300 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:23,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:23,311 INFO L85 PathProgramCache]: Analyzing trace with hash 282126900, now seen corresponding path program 1 times [2024-11-09 07:26:23,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:23,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880461150] [2024-11-09 07:26:23,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:23,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:23,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:23,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:26:23,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:23,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880461150] [2024-11-09 07:26:23,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880461150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:23,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:23,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:26:23,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802891707] [2024-11-09 07:26:23,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:23,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:26:23,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:23,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:26:23,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:26:23,921 INFO L87 Difference]: Start difference. First operand has 34 states, 24 states have (on average 1.625) internal successors, (39), 30 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:26:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:24,066 INFO L93 Difference]: Finished difference Result 67 states and 85 transitions. [2024-11-09 07:26:24,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:26:24,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-11-09 07:26:24,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:24,082 INFO L225 Difference]: With dead ends: 67 [2024-11-09 07:26:24,082 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 07:26:24,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:26:24,093 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 1 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:24,095 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 92 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:26:24,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 07:26:24,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-09 07:26:24,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 27 states have internal predecessors, (31), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:26:24,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 37 transitions. [2024-11-09 07:26:24,159 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 37 transitions. Word has length 9 [2024-11-09 07:26:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:24,161 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 37 transitions. [2024-11-09 07:26:24,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 07:26:24,161 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2024-11-09 07:26:24,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 07:26:24,165 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:24,165 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 07:26:24,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:26:24,167 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:24,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:24,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1062528209, now seen corresponding path program 1 times [2024-11-09 07:26:24,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:24,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579626960] [2024-11-09 07:26:24,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:24,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:26:24,431 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:24,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579626960] [2024-11-09 07:26:24,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579626960] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:24,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:26:24,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:26:24,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93468227] [2024-11-09 07:26:24,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:24,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 07:26:24,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:24,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 07:26:24,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:26:24,441 INFO L87 Difference]: Start difference. First operand 32 states and 37 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:24,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:24,532 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2024-11-09 07:26:24,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 07:26:24,534 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-09 07:26:24,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:24,535 INFO L225 Difference]: With dead ends: 49 [2024-11-09 07:26:24,535 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 07:26:24,536 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 07:26:24,537 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 1 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:24,538 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:26:24,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 07:26:24,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 07:26:24,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:26:24,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2024-11-09 07:26:24,554 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 18 [2024-11-09 07:26:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:24,556 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2024-11-09 07:26:24,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2024-11-09 07:26:24,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 07:26:24,558 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:24,558 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:24,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:26:24,560 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:24,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash -886415829, now seen corresponding path program 1 times [2024-11-09 07:26:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:24,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556613759] [2024-11-09 07:26:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:24,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:24,897 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:24,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556613759] [2024-11-09 07:26:24,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556613759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:24,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550973384] [2024-11-09 07:26:24,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:24,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:24,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:24,903 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:24,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 07:26:25,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:25,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:26:25,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:26:25,219 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550973384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:26:25,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 07:26:25,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624630965] [2024-11-09 07:26:25,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:25,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:26:25,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:25,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:26:25,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:26:25,225 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:26:25,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:25,256 INFO L93 Difference]: Finished difference Result 31 states and 35 transitions. [2024-11-09 07:26:25,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:26:25,257 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-09 07:26:25,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:25,260 INFO L225 Difference]: With dead ends: 31 [2024-11-09 07:26:25,260 INFO L226 Difference]: Without dead ends: 30 [2024-11-09 07:26:25,261 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:26:25,264 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:25,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 24 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:26:25,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-09 07:26:25,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-11-09 07:26:25,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:26:25,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2024-11-09 07:26:25,280 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 19 [2024-11-09 07:26:25,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:25,280 INFO L471 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2024-11-09 07:26:25,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:26:25,281 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2024-11-09 07:26:25,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-09 07:26:25,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:25,284 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2024-11-09 07:26:25,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 07:26:25,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:25,485 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:25,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:25,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1421363936, now seen corresponding path program 1 times [2024-11-09 07:26:25,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:25,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327750326] [2024-11-09 07:26:25,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:25,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:25,731 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:25,731 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:25,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327750326] [2024-11-09 07:26:25,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327750326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:25,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1605933201] [2024-11-09 07:26:25,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:25,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:25,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:25,735 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:25,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 07:26:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:25,902 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 07:26:25,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:25,980 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:25,980 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:25,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1605933201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:25,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:26:25,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 07:26:25,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438411261] [2024-11-09 07:26:25,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:25,982 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 07:26:25,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:25,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 07:26:25,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:26:25,984 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:26,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:26,060 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2024-11-09 07:26:26,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 07:26:26,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2024-11-09 07:26:26,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:26,062 INFO L225 Difference]: With dead ends: 30 [2024-11-09 07:26:26,063 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 07:26:26,063 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 07:26:26,064 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 0 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:26,065 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:26:26,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 07:26:26,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 24. [2024-11-09 07:26:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:26,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2024-11-09 07:26:26,073 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 19 [2024-11-09 07:26:26,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:26,073 INFO L471 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2024-11-09 07:26:26,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:26,074 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2024-11-09 07:26:26,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-09 07:26:26,074 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:26,075 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:26,101 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 07:26:26,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:26,275 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:26,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:26,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1709086841, now seen corresponding path program 1 times [2024-11-09 07:26:26,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:26,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687854038] [2024-11-09 07:26:26,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:26,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:26,475 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:26,475 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:26,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687854038] [2024-11-09 07:26:26,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687854038] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:26,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945376219] [2024-11-09 07:26:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:26,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:26,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:26,484 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:26,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 07:26:26,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:26,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 07:26:26,667 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:26,723 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:26:26,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:26:26,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945376219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:26,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:26:26,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 07:26:26,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141234477] [2024-11-09 07:26:26,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:26,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:26:26,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:26,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:26:26,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:26:26,730 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:26:26,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:26:26,763 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2024-11-09 07:26:26,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:26:26,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-09 07:26:26,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:26:26,765 INFO L225 Difference]: With dead ends: 24 [2024-11-09 07:26:26,766 INFO L226 Difference]: Without dead ends: 21 [2024-11-09 07:26:26,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 07:26:26,768 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 07:26:26,772 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 07:26:26,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-09 07:26:26,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-09 07:26:26,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:26,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2024-11-09 07:26:26,781 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 20 [2024-11-09 07:26:26,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:26:26,782 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2024-11-09 07:26:26,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:26:26,783 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2024-11-09 07:26:26,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 07:26:26,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:26:26,784 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:26:26,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 07:26:26,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:26,986 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:26:26,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:26:26,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1442574897, now seen corresponding path program 1 times [2024-11-09 07:26:26,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:26:26,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647933650] [2024-11-09 07:26:26,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:26,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:26:27,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:27,137 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:26:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647933650] [2024-11-09 07:26:27,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647933650] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:26:27,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183831356] [2024-11-09 07:26:27,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:26:27,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:26:27,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:26:27,143 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:26:27,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 07:26:27,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:26:27,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:26:27,314 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:26:27,355 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 07:26:27,359 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:26:27,456 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 07:26:27,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183831356] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:26:27,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [498611591] [2024-11-09 07:26:27,487 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2024-11-09 07:26:27,488 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:26:27,495 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:26:27,502 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:26:27,503 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:26:29,945 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 129 for LOIs [2024-11-09 07:26:30,294 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:26:47,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [498611591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:26:47,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:26:47,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [5, 5, 5] total 22 [2024-11-09 07:26:47,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241775328] [2024-11-09 07:26:47,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:26:47,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-09 07:26:47,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:26:47,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-09 07:26:47,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=409, Unknown=3, NotChecked=0, Total=462 [2024-11-09 07:26:47,591 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 17 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:26:49,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:51,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:55,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:26:57,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:00,653 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:21,107 WARN L286 SmtUtils]: Spent 13.98s on a formula simplification. DAG size of input: 167 DAG size of output: 165 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-09 07:27:24,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:24,558 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2024-11-09 07:27:24,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 07:27:24,559 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2024-11-09 07:27:24,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:24,560 INFO L225 Difference]: With dead ends: 31 [2024-11-09 07:27:24,560 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 07:27:24,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 38.0s TimeCoverageRelationStatistics Valid=69, Invalid=576, Unknown=5, NotChecked=0, Total=650 [2024-11-09 07:27:24,561 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 3 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:24,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 332 Invalid, 13 Unknown, 0 Unchecked, 16.3s Time] [2024-11-09 07:27:24,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 07:27:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 26. [2024-11-09 07:27:24,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 22 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:27:24,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2024-11-09 07:27:24,579 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 21 [2024-11-09 07:27:24,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:24,580 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2024-11-09 07:27:24,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 13 states have internal predecessors, (15), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:27:24,580 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2024-11-09 07:27:24,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-09 07:27:24,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:24,584 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:24,611 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 07:27:24,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:24,785 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:27:24,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:24,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1930110557, now seen corresponding path program 1 times [2024-11-09 07:27:24,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:24,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548229070] [2024-11-09 07:27:24,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:24,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:24,962 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 07:27:24,962 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:24,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548229070] [2024-11-09 07:27:24,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548229070] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:24,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324228355] [2024-11-09 07:27:24,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:24,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:24,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:24,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:24,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 07:27:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:25,133 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:27:25,135 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 07:27:25,223 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:25,349 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 07:27:25,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324228355] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:25,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1781210081] [2024-11-09 07:27:25,352 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:27:25,357 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:25,357 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:25,358 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:25,358 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:27,209 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 112 for LOIs [2024-11-09 07:27:27,416 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:27:38,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1781210081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:27:38,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:27:38,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 5, 5] total 21 [2024-11-09 07:27:38,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515945057] [2024-11-09 07:27:38,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:27:38,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 07:27:38,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:27:38,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 07:27:38,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=368, Unknown=1, NotChecked=0, Total=420 [2024-11-09 07:27:38,280 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:27:40,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:43,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:27:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:27:52,434 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2024-11-09 07:27:52,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 07:27:52,436 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 26 [2024-11-09 07:27:52,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:27:52,437 INFO L225 Difference]: With dead ends: 26 [2024-11-09 07:27:52,437 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 07:27:52,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 18.6s TimeCoverageRelationStatistics Valid=55, Invalid=405, Unknown=2, NotChecked=0, Total=462 [2024-11-09 07:27:52,438 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:27:52,439 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 263 Invalid, 2 Unknown, 0 Unchecked, 6.6s Time] [2024-11-09 07:27:52,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 07:27:52,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 07:27:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:27:52,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2024-11-09 07:27:52,455 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 26 [2024-11-09 07:27:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:27:52,455 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2024-11-09 07:27:52,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 12 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 07:27:52,455 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2024-11-09 07:27:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-09 07:27:52,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:27:52,458 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:27:52,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 07:27:52,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 07:27:52,659 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:27:52,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:27:52,659 INFO L85 PathProgramCache]: Analyzing trace with hash 296114952, now seen corresponding path program 1 times [2024-11-09 07:27:52,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:27:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369357659] [2024-11-09 07:27:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:52,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:27:52,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:52,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:27:52,840 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:27:52,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369357659] [2024-11-09 07:27:52,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369357659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:27:52,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292445743] [2024-11-09 07:27:52,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:27:52,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:27:52,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:27:52,842 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:27:52,846 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 07:27:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:27:52,983 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:27:52,985 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:27:53,082 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-09 07:27:53,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:27:53,196 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 07:27:53,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292445743] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:27:53,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [964067570] [2024-11-09 07:27:53,198 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:27:53,198 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:27:53,199 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:27:53,199 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:27:53,199 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:27:54,507 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 129 for LOIs [2024-11-09 07:27:54,678 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:11,491 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1285#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-09 07:28:11,491 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:11,491 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:28:11,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-09 07:28:11,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091887488] [2024-11-09 07:28:11,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:11,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:28:11,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:28:11,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=441, Unknown=1, NotChecked=0, Total=506 [2024-11-09 07:28:11,494 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:28:11,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:11,671 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2024-11-09 07:28:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 07:28:11,672 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 27 [2024-11-09 07:28:11,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:11,673 INFO L225 Difference]: With dead ends: 48 [2024-11-09 07:28:11,673 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 07:28:11,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 60 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 17.0s TimeCoverageRelationStatistics Valid=64, Invalid=441, Unknown=1, NotChecked=0, Total=506 [2024-11-09 07:28:11,675 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 2 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:11,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 56 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:28:11,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 07:28:11,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 07:28:11,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:28:11,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 34 transitions. [2024-11-09 07:28:11,694 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 34 transitions. Word has length 27 [2024-11-09 07:28:11,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:11,694 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 34 transitions. [2024-11-09 07:28:11,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:28:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2024-11-09 07:28:11,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 07:28:11,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:11,696 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:11,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 07:28:11,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:11,897 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:28:11,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:11,898 INFO L85 PathProgramCache]: Analyzing trace with hash -681417917, now seen corresponding path program 2 times [2024-11-09 07:28:11,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:11,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457684576] [2024-11-09 07:28:11,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:11,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:11,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:12,147 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:12,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457684576] [2024-11-09 07:28:12,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457684576] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:12,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190106047] [2024-11-09 07:28:12,148 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:28:12,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:12,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:12,151 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:12,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 07:28:12,369 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 07:28:12,369 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:28:12,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 07:28:12,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:12,494 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:12,494 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:12,689 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:12,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190106047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:28:12,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1726671141] [2024-11-09 07:28:12,693 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:28:12,693 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:12,694 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:12,694 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:12,694 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:13,990 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 129 for LOIs [2024-11-09 07:28:14,209 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:30,416 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1627#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-09 07:28:30,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:30,416 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:28:30,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-09 07:28:30,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939821972] [2024-11-09 07:28:30,416 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:30,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 07:28:30,417 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:30,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 07:28:30,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=664, Unknown=3, NotChecked=0, Total=756 [2024-11-09 07:28:30,419 INFO L87 Difference]: Start difference. First operand 31 states and 34 transitions. Second operand has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:28:30,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:30,577 INFO L93 Difference]: Finished difference Result 47 states and 52 transitions. [2024-11-09 07:28:30,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 07:28:30,579 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 36 [2024-11-09 07:28:30,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:30,580 INFO L225 Difference]: With dead ends: 47 [2024-11-09 07:28:30,581 INFO L226 Difference]: Without dead ends: 46 [2024-11-09 07:28:30,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=89, Invalid=664, Unknown=3, NotChecked=0, Total=756 [2024-11-09 07:28:30,582 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:30,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 07:28:30,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-09 07:28:30,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-09 07:28:30,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 41 states have (on average 1.048780487804878) internal successors, (43), 41 states have internal predecessors, (43), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:28:30,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2024-11-09 07:28:30,620 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 36 [2024-11-09 07:28:30,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:30,624 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2024-11-09 07:28:30,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.4545454545454546) internal successors, (38), 12 states have internal predecessors, (38), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:28:30,625 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2024-11-09 07:28:30,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 07:28:30,626 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:30,626 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:30,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 07:28:30,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:30,827 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:28:30,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:30,827 INFO L85 PathProgramCache]: Analyzing trace with hash 495123905, now seen corresponding path program 3 times [2024-11-09 07:28:30,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:30,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037853914] [2024-11-09 07:28:30,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:30,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:31,365 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:31,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:31,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037853914] [2024-11-09 07:28:31,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037853914] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:31,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950384596] [2024-11-09 07:28:31,366 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:28:31,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:31,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:31,367 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:31,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 07:28:31,992 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:28:31,992 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:28:31,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 07:28:31,997 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:32,165 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:32,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:32,770 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:32,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [950384596] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:28:32,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2122334406] [2024-11-09 07:28:32,772 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:28:32,773 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:32,776 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:32,777 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:32,777 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:34,181 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 112 for LOIs [2024-11-09 07:28:34,332 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:28:45,775 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2086#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-09 07:28:45,776 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:28:45,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:28:45,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-09 07:28:45,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007839286] [2024-11-09 07:28:45,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:28:45,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 07:28:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:28:45,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 07:28:45,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=202, Invalid=1279, Unknown=1, NotChecked=0, Total=1482 [2024-11-09 07:28:45,780 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:28:46,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:28:46,055 INFO L93 Difference]: Finished difference Result 77 states and 85 transitions. [2024-11-09 07:28:46,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 07:28:46,056 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 51 [2024-11-09 07:28:46,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:28:46,057 INFO L225 Difference]: With dead ends: 77 [2024-11-09 07:28:46,057 INFO L226 Difference]: Without dead ends: 76 [2024-11-09 07:28:46,059 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 123 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=202, Invalid=1279, Unknown=1, NotChecked=0, Total=1482 [2024-11-09 07:28:46,059 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:28:46,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:28:46,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-11-09 07:28:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2024-11-09 07:28:46,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 71 states have (on average 1.028169014084507) internal successors, (73), 71 states have internal predecessors, (73), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:28:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2024-11-09 07:28:46,090 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 51 [2024-11-09 07:28:46,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:28:46,091 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2024-11-09 07:28:46,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.9565217391304346) internal successors, (68), 24 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:28:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2024-11-09 07:28:46,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-09 07:28:46,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:28:46,093 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 10, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:28:46,117 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 07:28:46,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 07:28:46,294 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:28:46,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:28:46,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1177550463, now seen corresponding path program 4 times [2024-11-09 07:28:46,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:28:46,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25055896] [2024-11-09 07:28:46,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:28:46,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:28:46,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:47,842 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:47,843 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:28:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25055896] [2024-11-09 07:28:47,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25055896] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:28:47,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966759284] [2024-11-09 07:28:47,843 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 07:28:47,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:28:47,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:28:47,845 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:28:47,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 07:28:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:28:48,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 07:28:48,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:28:48,481 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:48,481 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:28:50,812 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 0 proven. 275 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:28:50,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966759284] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 07:28:50,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [590859629] [2024-11-09 07:28:50,815 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:28:50,815 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:28:50,816 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:28:50,816 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:28:50,816 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:28:51,987 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 112 for LOIs [2024-11-09 07:28:52,139 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:29:04,459 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2820#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-09 07:29:04,459 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:29:04,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 07:29:04,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2024-11-09 07:29:04,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947889471] [2024-11-09 07:29:04,459 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 07:29:04,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 07:29:04,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:29:04,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 07:29:04,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=646, Invalid=3259, Unknown=1, NotChecked=0, Total=3906 [2024-11-09 07:29:04,463 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:29:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:29:04,971 INFO L93 Difference]: Finished difference Result 137 states and 151 transitions. [2024-11-09 07:29:04,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-09 07:29:04,972 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2024-11-09 07:29:04,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:29:04,973 INFO L225 Difference]: With dead ends: 137 [2024-11-09 07:29:04,973 INFO L226 Difference]: Without dead ends: 136 [2024-11-09 07:29:04,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 201 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1843 ImplicationChecksByTransitivity, 15.3s TimeCoverageRelationStatistics Valid=646, Invalid=3259, Unknown=1, NotChecked=0, Total=3906 [2024-11-09 07:29:04,976 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 07:29:04,976 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 183 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 07:29:04,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-09 07:29:05,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2024-11-09 07:29:05,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 131 states have (on average 1.015267175572519) internal successors, (133), 131 states have internal predecessors, (133), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 07:29:05,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 139 transitions. [2024-11-09 07:29:05,020 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 139 transitions. Word has length 81 [2024-11-09 07:29:05,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:29:05,021 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 139 transitions. [2024-11-09 07:29:05,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 2.723404255319149) internal successors, (128), 48 states have internal predecessors, (128), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-09 07:29:05,021 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 139 transitions. [2024-11-09 07:29:05,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-09 07:29:05,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:29:05,024 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 23, 22, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:29:05,051 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 07:29:05,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 07:29:05,225 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:29:05,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:29:05,226 INFO L85 PathProgramCache]: Analyzing trace with hash 372431105, now seen corresponding path program 5 times [2024-11-09 07:29:05,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:29:05,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820082900] [2024-11-09 07:29:05,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:29:05,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:29:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:29:10,173 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 0 proven. 1265 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-09 07:29:10,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:29:10,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820082900] [2024-11-09 07:29:10,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820082900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:29:10,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730279636] [2024-11-09 07:29:10,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 07:29:10,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:29:10,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:29:10,176 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:29:10,178 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 07:29:12,047 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2024-11-09 07:29:12,047 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:29:12,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 125 conjuncts are in the unsatisfiable core [2024-11-09 07:29:12,064 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:29:12,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-09 07:29:13,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:29:13,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:29:13,532 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 07:29:13,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2024-11-09 07:29:13,562 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-09 07:29:14,334 INFO L349 Elim1Store]: treesize reduction 13, result has 40.9 percent of original size [2024-11-09 07:29:14,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 15 [2024-11-09 07:29:14,435 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-09 07:29:14,435 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-09 07:29:14,523 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-09 07:29:14,868 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-11-09 07:29:14,917 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2024-11-09 07:29:15,892 INFO L349 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2024-11-09 07:29:15,892 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 102 treesize of output 48 [2024-11-09 07:29:15,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:15,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:15,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-11-09 07:29:15,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-09 07:29:16,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:16,536 INFO L349 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2024-11-09 07:29:16,536 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 110 treesize of output 85 [2024-11-09 07:29:16,648 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-11-09 07:29:16,649 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-11-09 07:29:16,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:16,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:16,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:16,698 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 43 [2024-11-09 07:29:17,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:17,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:17,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:17,183 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 93 treesize of output 53 [2024-11-09 07:29:17,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-09 07:29:17,315 INFO L349 Elim1Store]: treesize reduction 180, result has 7.7 percent of original size [2024-11-09 07:29:17,315 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 175 treesize of output 85 [2024-11-09 07:29:35,027 INFO L134 CoverageAnalysis]: Checked inductivity of 1282 backedges. 320 proven. 25 refuted. 5 times theorem prover too weak. 932 trivial. 0 not checked. [2024-11-09 07:29:35,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 07:29:38,862 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse7 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base|)) (.cse9 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset|)) (.cse11 (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base|)) (.cse12 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset|))) (and (forall ((|ULTIMATE.start_sll_prepend_#t~ret7#1.offset| Int)) (= (let ((.cse8 (+ |ULTIMATE.start_sll_prepend_#t~ret7#1.offset| 4))) (let ((.cse0 (let ((.cse10 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base| (store .cse11 .cse8 .cse12)))) (store .cse10 |c_ULTIMATE.start_sll_prepend_~head#1.base| (store (select .cse10 |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset| |ULTIMATE.start_sll_prepend_#t~ret7#1.offset|)))) (.cse1 (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base| (store .cse7 .cse8 .cse9)))) (store .cse6 |c_ULTIMATE.start_sll_prepend_~head#1.base| (store (select .cse6 |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base|))))) (let ((.cse4 (select (select .cse1 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse5 (+ (select (select .cse0 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse2 (select (select .cse1 .cse4) .cse5)) (.cse3 (+ (select (select .cse0 .cse4) .cse5) 4))) (select (select .cse0 (select (select .cse1 .cse2) .cse3)) (+ (select (select .cse0 .cse2) .cse3) 4)))))) 0)) (forall ((|ULTIMATE.start_sll_prepend_#t~ret7#1.offset| Int)) (= (let ((.cse20 (+ |ULTIMATE.start_sll_prepend_#t~ret7#1.offset| 4))) (let ((.cse16 (let ((.cse21 (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base| (store .cse11 .cse20 .cse12)))) (store .cse21 |c_ULTIMATE.start_sll_prepend_~head#1.base| (store (select .cse21 |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset| |ULTIMATE.start_sll_prepend_#t~ret7#1.offset|)))) (.cse13 (let ((.cse19 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base| (store .cse7 .cse20 .cse9)))) (store .cse19 |c_ULTIMATE.start_sll_prepend_~head#1.base| (store (select .cse19 |c_ULTIMATE.start_sll_prepend_~head#1.base|) |c_ULTIMATE.start_sll_prepend_~head#1.offset| |c_ULTIMATE.start_sll_prepend_#t~ret7#1.base|))))) (let ((.cse17 (select (select .cse13 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|)) (.cse18 (+ (select (select .cse16 |c_ULTIMATE.start_main_~#s~0#1.base|) |c_ULTIMATE.start_main_~#s~0#1.offset|) 4))) (let ((.cse14 (select (select .cse13 .cse17) .cse18)) (.cse15 (+ (select (select .cse16 .cse17) .cse18) 4))) (select (select .cse13 (select (select .cse13 .cse14) .cse15)) (+ (select (select .cse16 .cse14) .cse15) 4)))))) 0)))) is different from false [2024-11-09 07:29:40,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730279636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:29:40,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1836140496] [2024-11-09 07:29:40,028 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2024-11-09 07:29:40,029 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 07:29:40,029 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 07:29:40,029 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 07:29:40,029 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 07:29:41,585 INFO L197 IcfgInterpreter]: Interpreting procedure node_create with input of size 129 for LOIs [2024-11-09 07:29:41,718 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 07:30:23,871 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4017#(and (<= 1 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~data~0#1| 1) (= |ULTIMATE.start_main_~#s~0#1.offset| 0) (= |ULTIMATE.start_main_~len~0#1| 2) (<= 2 |ULTIMATE.start_main_~#s~0#1.base|))' at error location [2024-11-09 07:30:23,871 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 07:30:23,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 07:30:23,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 23] total 69 [2024-11-09 07:30:23,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37438303] [2024-11-09 07:30:23,872 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 07:30:23,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2024-11-09 07:30:23,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:30:23,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2024-11-09 07:30:23,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=722, Invalid=7461, Unknown=11, NotChecked=178, Total=8372 [2024-11-09 07:30:23,877 INFO L87 Difference]: Start difference. First operand 136 states and 139 transitions. Second operand has 69 states, 65 states have (on average 2.5846153846153848) internal successors, (168), 65 states have internal predecessors, (168), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:30:26,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:28,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:29,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:31,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:33,840 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:35,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:37,364 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:39,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:42,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:44,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:48,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:53,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:56,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:30:58,366 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:02,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:05,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:09,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:14,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:16,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:21,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:23,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:25,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:28,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:30,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-09 07:31:31,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:31,013 INFO L93 Difference]: Finished difference Result 269 states and 277 transitions. [2024-11-09 07:31:31,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2024-11-09 07:31:31,014 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 65 states have (on average 2.5846153846153848) internal successors, (168), 65 states have internal predecessors, (168), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 141 [2024-11-09 07:31:31,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:31,015 INFO L225 Difference]: With dead ends: 269 [2024-11-09 07:31:31,015 INFO L226 Difference]: Without dead ends: 150 [2024-11-09 07:31:31,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3027 ImplicationChecksByTransitivity, 84.8s TimeCoverageRelationStatistics Valid=982, Invalid=9313, Unknown=11, NotChecked=200, Total=10506 [2024-11-09 07:31:31,023 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 2 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 6 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 50.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.6s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:31,024 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 467 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 848 Invalid, 21 Unknown, 0 Unchecked, 51.6s Time] [2024-11-09 07:31:31,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-11-09 07:31:31,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 147. [2024-11-09 07:31:31,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 141 states have (on average 1.0141843971631206) internal successors, (143), 141 states have internal predecessors, (143), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 07:31:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 151 transitions. [2024-11-09 07:31:31,090 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 151 transitions. Word has length 141 [2024-11-09 07:31:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:31,090 INFO L471 AbstractCegarLoop]: Abstraction has 147 states and 151 transitions. [2024-11-09 07:31:31,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 65 states have (on average 2.5846153846153848) internal successors, (168), 65 states have internal predecessors, (168), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-09 07:31:31,091 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 151 transitions. [2024-11-09 07:31:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-09 07:31:31,098 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:31:31,099 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 24, 24, 23, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:31:31,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-09 07:31:31,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 07:31:31,300 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 07:31:31,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:31:31,300 INFO L85 PathProgramCache]: Analyzing trace with hash 507426536, now seen corresponding path program 6 times [2024-11-09 07:31:31,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:31:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055786920] [2024-11-09 07:31:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:31:31,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:31:31,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:31:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 1398 trivial. 0 not checked. [2024-11-09 07:31:31,762 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:31:31,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055786920] [2024-11-09 07:31:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055786920] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 07:31:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [405723803] [2024-11-09 07:31:31,763 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 07:31:31,763 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 07:31:31,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:31:31,765 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 07:31:31,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 07:31:33,048 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 07:31:33,048 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 07:31:33,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-09 07:31:33,058 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 07:31:33,204 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 1386 trivial. 0 not checked. [2024-11-09 07:31:33,204 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 07:31:33,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [405723803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:31:33,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 07:31:33,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-09 07:31:33,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354853609] [2024-11-09 07:31:33,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:31:33,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-09 07:31:33,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:31:33,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-09 07:31:33,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:31:33,207 INFO L87 Difference]: Start difference. First operand 147 states and 151 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:31:33,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:31:33,386 INFO L93 Difference]: Finished difference Result 150 states and 153 transitions. [2024-11-09 07:31:33,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 07:31:33,387 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 155 [2024-11-09 07:31:33,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:31:33,388 INFO L225 Difference]: With dead ends: 150 [2024-11-09 07:31:33,388 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 07:31:33,388 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 07:31:33,389 INFO L432 NwaCegarLoop]: 5 mSDtfsCounter, 0 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:31:33,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 18 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 07:31:33,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 07:31:33,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 07:31:33,391 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 07:31:33,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 07:31:33,392 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 155 [2024-11-09 07:31:33,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:31:33,392 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 07:31:33,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-09 07:31:33,393 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 07:31:33,393 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 07:31:33,396 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2024-11-09 07:31:33,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2024-11-09 07:31:33,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2024-11-09 07:31:33,397 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2024-11-09 07:31:33,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2024-11-09 07:31:33,398 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2024-11-09 07:31:33,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 07:31:33,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 07:31:33,602 INFO L407 BasicCegarLoop]: Path program histogram: [6, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:31:33,605 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 07:34:18,605 WARN L286 SmtUtils]: Spent 2.75m on a formula simplification. DAG size of input: 299 DAG size of output: 294 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 07:36:59,775 WARN L286 SmtUtils]: Spent 2.67m on a formula simplification. DAG size of input: 388 DAG size of output: 376 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 07:39:42,577 WARN L286 SmtUtils]: Spent 2.71m on a formula simplification. DAG size of input: 321 DAG size of output: 316 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-09 07:39:43,918 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 07:39:43,941 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 07:39:43,943 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 07:39:43,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-09 07:39:43,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,944 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,945 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,946 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,946 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-09 07:39:43,946 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-09 07:39:43,946 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-09 07:39:43,946 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #valid [2024-11-09 07:39:43,947 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] [2024-11-09 07:39:43,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-09 07:39:43,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,948 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-09 07:39:43,949 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,949 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,949 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,949 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]],[IntegerLiteral[4]]]]] [2024-11-09 07:39:43,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-09 07:39:43,950 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]],[IntegerLiteral[4]]]]] [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,951 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!offset [2024-11-09 07:39:43,952 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~head~0!base [2024-11-09 07:39:43,953 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,953 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,953 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,954 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,954 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 07:39:43,954 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 07:39:43,954 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 07:39:43,954 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 07:39:43,955 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 07:39:43,955 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] [2024-11-09 07:39:43,973 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,973 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,974 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset [2024-11-09 07:39:43,974 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] [2024-11-09 07:39:43,974 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-09 07:39:43,974 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-09 07:39:43,975 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,975 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,975 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,975 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,976 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-09 07:39:43,976 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-09 07:39:43,976 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,976 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,976 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-09 07:39:43,977 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-09 07:39:43,977 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,977 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,977 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,978 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,978 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,978 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,978 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-09 07:39:43,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-09 07:39:43,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-09 07:39:43,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,980 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,981 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!offset [2024-11-09 07:39:43,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:43,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base [2024-11-09 07:39:43,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] [2024-11-09 07:39:43,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] [2024-11-09 07:39:43,982 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ptr~0!base [2024-11-09 07:39:43,983 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,983 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,983 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:43,983 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:43,984 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!offset [2024-11-09 07:39:43,984 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#s~0!base [2024-11-09 07:39:44,198 WARN L162 FloydHoareUtils]: Requires clause for node_create contained old-variable. Original clause: (let ((.cse41 (select |old(#memory_int)| 1))) (let ((.cse14 (+ |#StackHeapBarrier| 1)) (.cse27 (= (select .cse41 0) 48)) (.cse26 (= (select .cse41 1) 0)) (.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |node_create_#in~data#1| 1))) (let ((.cse4 (exists ((|v_#memory_int_77| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| Int) (|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (let ((.cse40 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) (= (select (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0) 0) (= (store |v_#memory_$Pointer$.base_45| .cse40 (store (select |v_#memory_$Pointer$.base_45| .cse40) 4 (select (select |old(#memory_$Pointer$.base)| .cse40) 4))) |old(#memory_$Pointer$.base)|) (= (store |v_#memory_int_77| .cse40 (store (select |v_#memory_int_77| .cse40) 4 (select (select |old(#memory_int)| .cse40) 4))) |old(#memory_int)|) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| .cse40 (store (select |v_#memory_$Pointer$.offset_45| .cse40) 4 0))))))) (.cse5 (exists ((|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| Int)) (let ((.cse34 (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| 1)) (.cse35 (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11|))) (and (or (and (exists ((|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.base)| (store |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))))) (exists ((|v_#memory_int_77| (Array Int (Array Int Int)))) (= (store |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))) |old(#memory_int)|)) .cse34 (exists ((|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 0))))) (and (exists ((|v_#valid_30| (Array Int Int))) (and (= (select |v_#valid_30| 2) 1) (= (select |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) 0) (= |old(#valid)| (store |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 1)) (= (select |v_#valid_30| 0) 0) (= (select |v_#valid_30| 1) 1))) (<= .cse14 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) (exists ((|v_#length_22| (Array Int Int))) (and (= (select |v_#length_22| 1) 2) (= 22 (select |v_#length_22| 2)) (= |old(#length)| (store |v_#length_22| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 4)))) .cse27 .cse26 .cse35)) (let ((.cse36 (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| 2)) (.cse37 (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| 1)) (.cse38 (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| 0)) (.cse39 (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| 0))) (or (and .cse0 .cse1 .cse36 .cse37 .cse38 .cse39 .cse34 (<= 2 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|)) (and .cse0 .cse1 .cse36 (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| 0) .cse37 .cse38 .cse39 .cse35))))))) (.cse3 (exists ((|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| Int)) (let ((.cse32 (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| 1))) (and (let ((.cse28 (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| 1)) (.cse29 (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| 0)) (.cse30 (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| 0)) (.cse31 (<= 2 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|)) (.cse33 (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| 2))) (or (and .cse28 .cse0 .cse29 .cse1 .cse30 .cse31 .cse32 .cse33) (and .cse28 .cse0 .cse29 .cse1 .cse30 .cse31 .cse33 (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| 0)))) (or (and (exists ((|v_#memory_$Pointer$.offset_61| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)))) (exists ((|v_#memory_int_99| (Array Int (Array Int Int)))) (= (store |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4))) |old(#memory_int)|)) (exists ((|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)) |old(#memory_$Pointer$.base)|)) .cse32) (and (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20|) .cse27 (exists ((|v_#length_33| (Array Int Int))) (and (= 2 (select |v_#length_33| 1)) (= 22 (select |v_#length_33| 2)) (= |old(#length)| (store |v_#length_33| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 4)))) (<= .cse14 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) (exists ((|v_#valid_41| (Array Int Int))) (and (= (select |v_#valid_41| 0) 0) (= (select |v_#valid_41| 1) 1) (= (select |v_#valid_41| 2) 1) (= (select |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) 0) (= |old(#valid)| (store |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 1)))) .cse26)))))) (.cse2 (exists ((|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| Int)) (and (<= 2 |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) (= (select (select |old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) 0) 0))))) (and (or (and .cse0 .cse1 .cse2) .cse3) (or .cse4 .cse5) (let ((.cse9 (not .cse1)) (.cse11 (< |#StackHeapBarrier| 1)) (.cse15 (not .cse27)) (.cse16 (not .cse26))) (or (and (forall ((|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| Int)) (let ((.cse13 (not (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| 1)))) (or (let ((.cse6 (not (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| 1))) (.cse7 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| 0))) (.cse8 (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 2)) (.cse10 (not (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| 2))) (.cse12 (not (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| 0)))) (and (or .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| 0))) (or .cse6 .cse7 .cse13 .cse8 .cse9 .cse10 .cse11 .cse12))) (and (or (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| .cse14) (forall ((|v_#length_33| (Array Int Int))) (or (not (= 2 (select |v_#length_33| 1))) (not (= 22 (select |v_#length_33| 2))) (not (= |old(#length)| (store |v_#length_33| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 4))))) .cse15 .cse16 (forall ((|v_#valid_41| (Array Int Int))) (or (not (= (select |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) 0)) (not (= |old(#valid)| (store |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 1))) (not (= (select |v_#valid_41| 0) 0)) (not (= (select |v_#valid_41| 2) 1)) (not (= (select |v_#valid_41| 1) 1)))) (not (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20|))) (or (forall ((|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int)))) (not (= (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)) |old(#memory_$Pointer$.base)|))) (forall ((|v_#memory_$Pointer$.offset_61| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0))))) (forall ((|v_#memory_int_99| (Array Int (Array Int Int)))) (not (= (store |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4))) |old(#memory_int)|))) .cse13))))) (forall ((|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| Int)) (or (not (= (select (select |old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) 0) 0)) (< |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| 2)))) (and (forall ((|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| Int)) (let ((.cse22 (not (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| 1))) (.cse19 (not (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11|)))) (or (let ((.cse17 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| 0))) (.cse18 (not (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| 0))) (.cse20 (not (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| 2))) (.cse21 (not (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| 1)))) (and (or .cse17 .cse18 .cse19 .cse9 .cse11 .cse20 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| 0)) .cse21) (or .cse17 .cse18 (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 2) .cse9 .cse11 .cse20 .cse21 .cse22))) (and (or (forall ((|v_#memory_int_77| (Array Int (Array Int Int)))) (not (= (store |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))) |old(#memory_int)|))) (forall ((|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 0))))) .cse22 (forall ((|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.base)| (store |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))))))) (or (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| .cse14) (forall ((|v_#length_22| (Array Int Int))) (or (not (= |old(#length)| (store |v_#length_22| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 4))) (not (= 22 (select |v_#length_22| 2))) (not (= (select |v_#length_22| 1) 2)))) (forall ((|v_#valid_30| (Array Int Int))) (or (not (= (select |v_#valid_30| 1) 1)) (not (= (select |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) 0)) (not (= |old(#valid)| (store |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 1))) (not (= (select |v_#valid_30| 2) 1)) (not (= (select |v_#valid_30| 0) 0)))) .cse19 .cse15 .cse16))))) (forall ((|v_#memory_int_77| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| Int) (|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (let ((.cse23 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0))) (or (< |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| 2) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| .cse23 (store (select |v_#memory_$Pointer$.offset_45| .cse23) 4 0)))) (not (= (store |v_#memory_$Pointer$.base_45| .cse23 (store (select |v_#memory_$Pointer$.base_45| .cse23) 4 (select (select |old(#memory_$Pointer$.base)| .cse23) 4))) |old(#memory_$Pointer$.base)|)) (not (= (store |v_#memory_int_77| .cse23 (store (select |v_#memory_int_77| .cse23) 4 (select (select |old(#memory_int)| .cse23) 4))) |old(#memory_int)|)) (not (= (select (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0) 0)))))) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (let ((.cse24 (= |old(#length)| |#length|)) (.cse25 (= |#memory_int| |old(#memory_int)|))) (or (and .cse24 .cse25 .cse4) (and .cse24 .cse25 .cse5))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or .cse3 .cse2) (= |old(#valid)| |#valid|)))))))) Eliminated clause: (exists ((|old(#valid)| (Array Int Int)) (|old(#length)| (Array Int Int)) (|old(#memory_int)| (Array Int (Array Int Int))) (|old(#memory_$Pointer$.offset)| (Array Int (Array Int Int))) (|old(#memory_$Pointer$.base)| (Array Int (Array Int Int)))) (let ((.cse39 (select |old(#memory_int)| 1))) (let ((.cse9 (+ |#StackHeapBarrier| 1)) (.cse8 (= (select .cse39 0) 48)) (.cse10 (= (select .cse39 1) 0)) (.cse0 (<= 1 |#StackHeapBarrier|)) (.cse1 (= |node_create_#in~data#1| 1))) (let ((.cse11 (exists ((|v_#memory_int_77| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| Int) (|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (let ((.cse38 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0))) (and (<= 2 |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) (= (select (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0) 0) (= (store |v_#memory_$Pointer$.base_45| .cse38 (store (select |v_#memory_$Pointer$.base_45| .cse38) 4 (select (select |old(#memory_$Pointer$.base)| .cse38) 4))) |old(#memory_$Pointer$.base)|) (= (store |v_#memory_int_77| .cse38 (store (select |v_#memory_int_77| .cse38) 4 (select (select |old(#memory_int)| .cse38) 4))) |old(#memory_int)|) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| .cse38 (store (select |v_#memory_$Pointer$.offset_45| .cse38) 4 0))))))) (.cse12 (exists ((|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| Int)) (let ((.cse32 (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| 1)) (.cse33 (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11|))) (and (or (and (exists ((|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.base)| (store |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))))) (exists ((|v_#memory_int_77| (Array Int (Array Int Int)))) (= (store |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))) |old(#memory_int)|)) .cse32 (exists ((|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 0))))) (and (exists ((|v_#valid_30| (Array Int Int))) (and (= (select |v_#valid_30| 2) 1) (= (select |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) 0) (= |old(#valid)| (store |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 1)) (= (select |v_#valid_30| 0) 0) (= (select |v_#valid_30| 1) 1))) (<= .cse9 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) (exists ((|v_#length_22| (Array Int Int))) (and (= (select |v_#length_22| 1) 2) (= 22 (select |v_#length_22| 2)) (= |old(#length)| (store |v_#length_22| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 4)))) .cse8 .cse10 .cse33)) (let ((.cse34 (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| 2)) (.cse35 (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| 1)) (.cse36 (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| 0)) (.cse37 (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| 0))) (or (and .cse0 .cse1 .cse34 .cse35 .cse36 .cse37 .cse32 (<= 2 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|)) (and .cse0 .cse1 .cse34 (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| 0) .cse35 .cse36 .cse37 .cse33)))))))) (and (or (and .cse0 .cse1 (exists ((|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| Int)) (and (<= 2 |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) (= (select (select |old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) 0) 0)))) (exists ((|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| Int)) (let ((.cse6 (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| 1))) (and (let ((.cse2 (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| 1)) (.cse3 (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| 0)) (.cse4 (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| 0)) (.cse5 (<= 2 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|)) (.cse7 (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| 2))) (or (and .cse2 .cse0 .cse3 .cse1 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse0 .cse3 .cse1 .cse4 .cse5 .cse7 (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| 0)))) (or (and (exists ((|v_#memory_$Pointer$.offset_61| (Array Int (Array Int Int)))) (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)))) (exists ((|v_#memory_int_99| (Array Int (Array Int Int)))) (= (store |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4))) |old(#memory_int)|)) (exists ((|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int)))) (= (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)) |old(#memory_$Pointer$.base)|)) .cse6) (and (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20|) .cse8 (exists ((|v_#length_33| (Array Int Int))) (and (= 2 (select |v_#length_33| 1)) (= 22 (select |v_#length_33| 2)) (= |old(#length)| (store |v_#length_33| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 4)))) (<= .cse9 |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) (exists ((|v_#valid_41| (Array Int Int))) (and (= (select |v_#valid_41| 0) 0) (= (select |v_#valid_41| 1) 1) (= (select |v_#valid_41| 2) 1) (= (select |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) 0) (= |old(#valid)| (store |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 1)))) .cse10)))))) (or .cse11 .cse12) (let ((.cse16 (not .cse1)) (.cse18 (< |#StackHeapBarrier| 1)) (.cse21 (not .cse8)) (.cse22 (not .cse10))) (or (and (forall ((|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| Int)) (let ((.cse20 (not (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20| 1)))) (or (let ((.cse13 (not (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_20| 1))) (.cse14 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_14| 0))) (.cse15 (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 2)) (.cse17 (not (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_24| 2))) (.cse19 (not (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_20| 0)))) (and (or .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| 0))) (or .cse13 .cse14 .cse20 .cse15 .cse16 .cse17 .cse18 .cse19))) (and (or (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| .cse9) (forall ((|v_#length_33| (Array Int Int))) (or (not (= 2 (select |v_#length_33| 1))) (not (= 22 (select |v_#length_33| 2))) (not (= |old(#length)| (store |v_#length_33| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 4))))) .cse21 .cse22 (forall ((|v_#valid_41| (Array Int Int))) (or (not (= (select |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20|) 0)) (not (= |old(#valid)| (store |v_#valid_41| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_20| 1))) (not (= (select |v_#valid_41| 0) 0)) (not (= (select |v_#valid_41| 2) 1)) (not (= (select |v_#valid_41| 1) 1)))) (not (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_20|))) (or (forall ((|v_#memory_$Pointer$.base_61| (Array Int (Array Int Int)))) (not (= (store |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.base_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0)) |old(#memory_$Pointer$.base)|))) (forall ((|v_#memory_$Pointer$.offset_61| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_$Pointer$.offset_61| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 0))))) (forall ((|v_#memory_int_99| (Array Int (Array Int Int)))) (not (= (store |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14| (store (select |v_#memory_int_99| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_14|) 4))) |old(#memory_int)|))) .cse20))))) (forall ((|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| Int)) (or (not (= (select (select |old(#memory_$Pointer$.offset)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4|) 0) 0)) (< |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_4| 2)))) (and (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (let ((.cse23 (= |old(#length)| |#length|)) (.cse24 (= |#memory_int| |old(#memory_int)|))) (or (and .cse23 .cse24 .cse11) (and .cse23 .cse24 .cse12))) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= |old(#valid)| |#valid|)) (and (forall ((|v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| Int) (|v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| Int) (|v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| Int) (|v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| Int)) (let ((.cse30 (not (= |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11| 1))) (.cse27 (not (= 2 |v_ULTIMATE.start_sll_create_~len#1_BEFORE_CALL_11|)))) (or (let ((.cse25 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.offset_BEFORE_CALL_7| 0))) (.cse26 (not (= |v_ULTIMATE.start_main_~#s~0#1.offset_BEFORE_CALL_10| 0))) (.cse28 (not (= |v_ULTIMATE.start_main_~len~0#1_BEFORE_CALL_14| 2))) (.cse29 (not (= |v_ULTIMATE.start_main_~data~0#1_BEFORE_CALL_10| 1)))) (and (or .cse25 .cse26 .cse27 .cse16 .cse18 .cse28 (not (= |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| 0)) .cse29) (or .cse25 .cse26 (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 2) .cse16 .cse18 .cse28 .cse29 .cse30))) (and (or (forall ((|v_#memory_int_77| (Array Int (Array Int Int)))) (not (= (store |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_int_77| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_int)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))) |old(#memory_int)|))) (forall ((|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 0))))) .cse30 (forall ((|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (not (= |old(#memory_$Pointer$.base)| (store |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7| (store (select |v_#memory_$Pointer$.base_45| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_create_~head~0#1.base_BEFORE_CALL_7|) 4))))))) (or (< |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| .cse9) (forall ((|v_#length_22| (Array Int Int))) (or (not (= |old(#length)| (store |v_#length_22| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 4))) (not (= 22 (select |v_#length_22| 2))) (not (= (select |v_#length_22| 1) 2)))) (forall ((|v_#valid_30| (Array Int Int))) (or (not (= (select |v_#valid_30| 1) 1)) (not (= (select |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10|) 0)) (not (= |old(#valid)| (store |v_#valid_30| |v_ULTIMATE.start_main_~#s~0#1.base_BEFORE_CALL_10| 1))) (not (= (select |v_#valid_30| 2) 1)) (not (= (select |v_#valid_30| 0) 0)))) .cse27 .cse21 .cse22))))) (forall ((|v_#memory_int_77| (Array Int (Array Int Int))) (|v_#memory_$Pointer$.offset_45| (Array Int (Array Int Int))) (|v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| Int) (|v_#memory_$Pointer$.base_45| (Array Int (Array Int Int)))) (let ((.cse31 (select (select |old(#memory_$Pointer$.base)| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0))) (or (< |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1| 2) (not (= |old(#memory_$Pointer$.offset)| (store |v_#memory_$Pointer$.offset_45| .cse31 (store (select |v_#memory_$Pointer$.offset_45| .cse31) 4 0)))) (not (= (store |v_#memory_$Pointer$.base_45| .cse31 (store (select |v_#memory_$Pointer$.base_45| .cse31) 4 (select (select |old(#memory_$Pointer$.base)| .cse31) 4))) |old(#memory_$Pointer$.base)|)) (not (= (store |v_#memory_int_77| .cse31 (store (select |v_#memory_int_77| .cse31) 4 (select (select |old(#memory_int)| .cse31) 4))) |old(#memory_int)|)) (not (= (select (select |v_#memory_$Pointer$.offset_45| |v_ULTIMATE.start_sll_prepend_~head#1.base_BEFORE_CALL_1|) 0) 0))))))))))))) [2024-11-09 07:39:44,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,453 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!base [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,454 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #res!offset [2024-11-09 07:39:44,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,455 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 07:39:44,457 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_ALL [2024-11-09 07:39:44,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID [2024-11-09 07:39:44,458 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID [2024-11-09 07:39:44,459 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 07:39:44 BoogieIcfgContainer [2024-11-09 07:39:44,459 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 07:39:44,460 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 07:39:44,460 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 07:39:44,460 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 07:39:44,461 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:26:23" (3/4) ... [2024-11-09 07:39:44,463 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 07:39:44,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2024-11-09 07:39:44,479 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-09 07:39:44,479 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-09 07:39:44,480 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 07:39:44,480 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 07:39:44,598 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 07:39:44,598 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 07:39:44,598 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 07:39:44,599 INFO L158 Benchmark]: Toolchain (without parser) took 802979.82ms. Allocated memory was 130.0MB in the beginning and 299.9MB in the end (delta: 169.9MB). Free memory was 91.0MB in the beginning and 179.1MB in the end (delta: -88.2MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,600 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 130.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 07:39:44,600 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.22ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 70.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,601 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.01ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 68.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,602 INFO L158 Benchmark]: Boogie Preprocessor took 54.83ms. Allocated memory is still 130.0MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,603 INFO L158 Benchmark]: RCFGBuilder took 666.05ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 126.5MB in the end (delta: -59.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,604 INFO L158 Benchmark]: TraceAbstraction took 801316.69ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 125.4MB in the beginning and 185.4MB in the end (delta: -60.0MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,605 INFO L158 Benchmark]: Witness Printer took 138.83ms. Allocated memory is still 299.9MB. Free memory was 185.4MB in the beginning and 179.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 07:39:44,606 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 130.0MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.22ms. Allocated memory is still 130.0MB. Free memory was 90.6MB in the beginning and 70.6MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.01ms. Allocated memory is still 130.0MB. Free memory was 70.6MB in the beginning and 68.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.83ms. Allocated memory is still 130.0MB. Free memory was 68.6MB in the beginning and 66.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 666.05ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 66.9MB in the beginning and 126.5MB in the end (delta: -59.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 801316.69ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 125.4MB in the beginning and 185.4MB in the end (delta: -60.0MB). Peak memory consumption was 175.9MB. Max. memory is 16.1GB. * Witness Printer took 138.83ms. Allocated memory is still 299.9MB. Free memory was 185.4MB in the beginning and 179.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #valid - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#valid,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]],[IntegerLiteral[4]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[ArrayAccessExpression[ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]],[IntegerLiteral[4]]]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~head~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~head~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_int - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IntegerLiteral[1]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.offset,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.offset,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_$Pointer$.base,GLOBAL] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_$Pointer$.base,GLOBAL],[IdentifierExpression[~#s~0!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ptr~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#s~0!base - 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: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #res!offset - 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: Unknown variable: ~unnamed0~0~P_ALL - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PID - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~unnamed0~0~P_PGID * 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: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 34 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 310.4s, OverallIterations: 13, TraceHistogramMax: 24, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.1s, AutomataDifference: 120.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 36 mSolverCounterUnknown, 31 SdHoareTripleChecker+Valid, 75.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 1186 SdHoareTripleChecker+Invalid, 73.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 995 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1885 IncrementalHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 191 mSDtfsCounter, 1885 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1466 GetRequests, 1137 SyntacticMatches, 14 SemanticMatches, 315 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6142 ImplicationChecksByTransitivity, 202.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=12, InterpolantAutomatonStates: 213, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 13 MinimizatonAttempts, 11 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.0s SatisfiabilityAnalysisTime, 41.8s InterpolantComputationTime, 1219 NumberOfCodeBlocks, 1180 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1431 ConstructedInterpolants, 12 QuantifiedInterpolants, 6433 SizeOfPredicates, 10 NumberOfNonLiveVariables, 4005 ConjunctsInSsa, 196 ConjunctsInUnsatCore, 30 InterpolantComputations, 6 PerfectInterpolantSequences, 4341/6650 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: OVERALL_TIME: 4.9s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 45, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 72, TOOLS_POST_TIME: 2.4s, TOOLS_POST_CALL_APPLICATIONS: 20, TOOLS_POST_CALL_TIME: 0.6s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 0.8s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 108, TOOLS_QUANTIFIERELIM_TIME: 3.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.2s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 152, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 24, DOMAIN_JOIN_TIME: 0.5s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 3, DOMAIN_WIDEN_TIME: 0.1s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 6, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 45, DOMAIN_ISBOTTOM_TIME: 0.3s, LOOP_SUMMARIZER_APPLICATIONS: 3, LOOP_SUMMARIZER_CACHE_MISSES: 3, LOOP_SUMMARIZER_OVERALL_TIME: 2.3s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.3s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 6, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 759, DAG_COMPRESSION_RETAINED_NODES: 128, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((((len == 1) && (data == 1)) && (len == 2)) && (data == 1)) || ((((data == 1) && (len == 0)) && (len == 2)) && (data == 1))) || ((((2 == len) && (data == 1)) && (len == 2)) && (data == 1))) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: ((((((count == 0) && (data == 1)) && (len == 2)) || ((((count <= 3) && (0 < count)) && (len == 2)) && (((count == 0) && (data == 1)) || ((1 <= count) && (data == 1))))) || ((len == 2) && (((count == 1) && (data == 1)) || ((count == 0) && (data == 1))))) || (((count <= 2) && (len == 2)) && (((count == 0) && (data == 1)) || ((1 <= count) && (data == 1))))) RESULT: Ultimate proved your program to be correct! [2024-11-09 07:39:44,844 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2024-11-09 07:39:44,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e60a4788-013e-43f7-802a-7a3379959cd7/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