./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bor4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/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_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/bor4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/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_e90c04d5-199e-461d-9ef1-7fd87f6f539f/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 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:44:43,255 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:44:43,366 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 05:44:43,373 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:44:43,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:44:43,411 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:44:43,411 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:44:43,412 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:44:43,413 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:44:43,414 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:44:43,415 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:44:43,416 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:44:43,416 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:44:43,416 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:44:43,417 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:44:43,418 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:44:43,419 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:44:43,421 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:44:43,422 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:44:43,422 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:44:43,422 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:44:43,423 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:44:43,426 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:44:43,427 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:44:43,427 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 05:44:43,427 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:44:43,428 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 05:44:43,428 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:44:43,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:44:43,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:44:43,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:44:43,429 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:44:43,429 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 05:44:43,430 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 05:44:43,430 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 05:44:43,431 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:44:43,431 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:44:43,432 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:44:43,432 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:44:43,433 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:44:43,433 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:44:43,434 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:44:43,434 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:44:43,435 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:44:43,435 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:44:43,435 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:44:43,436 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:44:43,436 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:44:43,436 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:44:43,436 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_e90c04d5-199e-461d-9ef1-7fd87f6f539f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc [2024-11-09 05:44:43,785 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:44:43,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:44:43,814 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:44:43,815 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:44:43,816 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:44:43,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-crafted/bor4.i Unable to find full path for "g++" [2024-11-09 05:44:45,838 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:44:46,056 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:44:46,057 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/sv-benchmarks/c/array-crafted/bor4.i [2024-11-09 05:44:46,065 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/data/92a05e30a/70b5f6e8a3324761bfdd323e3d7121c2/FLAG13bb56244 [2024-11-09 05:44:46,081 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/data/92a05e30a/70b5f6e8a3324761bfdd323e3d7121c2 [2024-11-09 05:44:46,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:44:46,084 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:44:46,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:44:46,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:44:46,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:44:46,093 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e6c7f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46, skipping insertion in model container [2024-11-09 05:44:46,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:44:46,336 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:44:46,349 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:44:46,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:44:46,412 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:44:46,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46 WrapperNode [2024-11-09 05:44:46,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:44:46,415 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:44:46,415 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:44:46,415 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:44:46,423 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,431 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,455 INFO L138 Inliner]: procedures = 16, calls = 31, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-11-09 05:44:46,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:44:46,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:44:46,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:44:46,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:44:46,467 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,468 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,470 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,470 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,476 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,480 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,482 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:44:46,486 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:44:46,486 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:44:46,487 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:44:46,488 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (1/1) ... [2024-11-09 05:44:46,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:44:46,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:46,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:44:46,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:44:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:44:46,568 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2024-11-09 05:44:46,568 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2024-11-09 05:44:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:44:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:44:46,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:44:46,571 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:44:46,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:44:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:44:46,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:44:46,653 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:44:46,655 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:44:46,893 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-09 05:44:46,894 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:44:46,999 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:44:47,002 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 05:44:47,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:44:47 BoogieIcfgContainer [2024-11-09 05:44:47,003 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:44:47,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:44:47,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:44:47,011 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:44:47,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:44:46" (1/3) ... [2024-11-09 05:44:47,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f89c489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:44:47, skipping insertion in model container [2024-11-09 05:44:47,013 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:44:46" (2/3) ... [2024-11-09 05:44:47,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f89c489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:44:47, skipping insertion in model container [2024-11-09 05:44:47,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:44:47" (3/3) ... [2024-11-09 05:44:47,015 INFO L112 eAbstractionObserver]: Analyzing ICFG bor4.i [2024-11-09 05:44:47,035 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:44:47,035 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-09 05:44:47,092 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:44:47,102 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;@3ea45e96, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:44:47,102 INFO L334 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-11-09 05:44:47,106 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 30 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 05:44:47,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 05:44:47,112 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:47,113 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 05:44:47,113 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:47,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash 4089471, now seen corresponding path program 1 times [2024-11-09 05:44:47,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:47,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340689369] [2024-11-09 05:44:47,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:47,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:47,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:47,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:47,371 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340689369] [2024-11-09 05:44:47,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340689369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:47,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:47,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 05:44:47,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330207291] [2024-11-09 05:44:47,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:47,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:47,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:47,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:47,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:47,407 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 30 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:47,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:47,488 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2024-11-09 05:44:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:44:47,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2024-11-09 05:44:47,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:47,503 INFO L225 Difference]: With dead ends: 69 [2024-11-09 05:44:47,504 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 05:44:47,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 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 05:44:47,515 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 1 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:47,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 97 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:47,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 05:44:47,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 05:44:47,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 25 states have (on average 1.56) internal successors, (39), 33 states have internal predecessors, (39), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:47,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2024-11-09 05:44:47,558 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 4 [2024-11-09 05:44:47,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:47,559 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2024-11-09 05:44:47,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:47,559 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2024-11-09 05:44:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-09 05:44:47,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:47,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-09 05:44:47,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:44:47,561 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:47,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:47,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1438455800, now seen corresponding path program 1 times [2024-11-09 05:44:47,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:47,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346841738] [2024-11-09 05:44:47,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:47,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:47,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:47,714 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:47,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:47,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346841738] [2024-11-09 05:44:47,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346841738] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:47,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902827719] [2024-11-09 05:44:47,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:47,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:47,716 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:47,718 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:47,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:44:47,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:47,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 05:44:47,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:47,912 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902827719] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:47,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:44:47,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-09 05:44:47,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875803288] [2024-11-09 05:44:47,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:47,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:44:47,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:47,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:44:47,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 05:44:47,918 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:48,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:48,004 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2024-11-09 05:44:48,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:44:48,005 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2024-11-09 05:44:48,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:48,006 INFO L225 Difference]: With dead ends: 37 [2024-11-09 05:44:48,007 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 05:44:48,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 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 05:44:48,009 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 1 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:48,009 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 143 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 05:44:48,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 05:44:48,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-09 05:44:48,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 25 states have (on average 1.52) internal successors, (38), 32 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:48,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 43 transitions. [2024-11-09 05:44:48,017 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 43 transitions. Word has length 8 [2024-11-09 05:44:48,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:48,018 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 43 transitions. [2024-11-09 05:44:48,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.6) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 43 transitions. [2024-11-09 05:44:48,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 05:44:48,021 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:48,021 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-09 05:44:48,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 05:44:48,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:48,226 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:48,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1642456917, now seen corresponding path program 1 times [2024-11-09 05:44:48,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:48,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [90566492] [2024-11-09 05:44:48,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:48,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:48,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 05:44:48,302 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:48,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [90566492] [2024-11-09 05:44:48,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [90566492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:48,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:44:48,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:44:48,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792748985] [2024-11-09 05:44:48,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:48,304 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:44:48,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:48,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:44:48,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:44:48,305 INFO L87 Difference]: Start difference. First operand 36 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:48,341 INFO L93 Difference]: Finished difference Result 62 states and 74 transitions. [2024-11-09 05:44:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:44:48,342 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2024-11-09 05:44:48,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:48,343 INFO L225 Difference]: With dead ends: 62 [2024-11-09 05:44:48,343 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 05:44:48,344 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 05:44:48,345 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:48,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:48,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 05:44:48,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 32. [2024-11-09 05:44:48,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.5) internal successors, (33), 28 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:48,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2024-11-09 05:44:48,352 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 9 [2024-11-09 05:44:48,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:48,353 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2024-11-09 05:44:48,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:48,353 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2024-11-09 05:44:48,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-09 05:44:48,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:48,354 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:48,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:44:48,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:48,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:48,356 INFO L85 PathProgramCache]: Analyzing trace with hash -681013381, now seen corresponding path program 1 times [2024-11-09 05:44:48,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:48,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151993466] [2024-11-09 05:44:48,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:48,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:48,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:48,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:48,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151993466] [2024-11-09 05:44:48,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151993466] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:48,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597831161] [2024-11-09 05:44:48,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:48,544 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:48,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:48,546 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:48,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:44:48,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:48,626 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:44:48,628 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:48,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:48,671 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:48,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 05:44:48,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597831161] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:48,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [489752465] [2024-11-09 05:44:48,755 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2024-11-09 05:44:48,755 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:48,760 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:48,766 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:48,767 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:44:49,848 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-09 05:44:49,931 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:44:50,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [489752465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:50,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:44:50,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2024-11-09 05:44:50,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689904977] [2024-11-09 05:44:50,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:50,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 05:44:50,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:50,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 05:44:50,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:44:50,367 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:50,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:50,584 INFO L93 Difference]: Finished difference Result 60 states and 76 transitions. [2024-11-09 05:44:50,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 05:44:50,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2024-11-09 05:44:50,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:50,586 INFO L225 Difference]: With dead ends: 60 [2024-11-09 05:44:50,587 INFO L226 Difference]: Without dead ends: 36 [2024-11-09 05:44:50,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2024-11-09 05:44:50,589 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 27 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:50,589 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 74 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:50,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2024-11-09 05:44:50,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2024-11-09 05:44:50,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:50,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2024-11-09 05:44:50,598 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 12 [2024-11-09 05:44:50,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:50,598 INFO L471 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2024-11-09 05:44:50,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:50,599 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2024-11-09 05:44:50,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-09 05:44:50,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:50,600 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:50,624 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:44:50,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:50,804 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:50,804 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:50,804 INFO L85 PathProgramCache]: Analyzing trace with hash -915906642, now seen corresponding path program 1 times [2024-11-09 05:44:50,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:50,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714289552] [2024-11-09 05:44:50,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:50,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:50,969 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 05:44:50,969 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:50,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714289552] [2024-11-09 05:44:50,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714289552] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:50,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446088019] [2024-11-09 05:44:50,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:50,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:50,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:50,975 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:50,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:44:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:51,059 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:44:51,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:51,091 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 05:44:51,093 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:51,137 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 05:44:51,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [446088019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:51,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [270349098] [2024-11-09 05:44:51,145 INFO L159 IcfgInterpreter]: Started Sifa with 13 locations of interest [2024-11-09 05:44:51,145 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:51,145 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:51,146 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:51,146 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:44:51,745 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-09 05:44:52,356 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:44:53,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [270349098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:53,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:44:53,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [4, 4, 4] total 18 [2024-11-09 05:44:53,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202436677] [2024-11-09 05:44:53,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:53,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-09 05:44:53,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:53,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-09 05:44:53,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:44:53,207 INFO L87 Difference]: Start difference. First operand 36 states and 42 transitions. Second operand has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:53,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:53,423 INFO L93 Difference]: Finished difference Result 62 states and 76 transitions. [2024-11-09 05:44:53,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 05:44:53,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-11-09 05:44:53,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:53,425 INFO L225 Difference]: With dead ends: 62 [2024-11-09 05:44:53,425 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 05:44:53,425 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2024-11-09 05:44:53,426 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 19 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:53,427 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 85 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 05:44:53,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 05:44:53,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2024-11-09 05:44:53,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:53,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2024-11-09 05:44:53,439 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2024-11-09 05:44:53,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:53,439 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2024-11-09 05:44:53,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 1.3) internal successors, (13), 9 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 05:44:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2024-11-09 05:44:53,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-09 05:44:53,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:53,442 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:53,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 05:44:53,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:53,644 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:53,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:53,645 INFO L85 PathProgramCache]: Analyzing trace with hash -1899896329, now seen corresponding path program 1 times [2024-11-09 05:44:53,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:53,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684394748] [2024-11-09 05:44:53,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:53,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:53,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:53,802 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:44:53,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:53,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684394748] [2024-11-09 05:44:53,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684394748] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:53,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [988211052] [2024-11-09 05:44:53,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:53,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:53,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:53,805 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:53,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 05:44:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:53,878 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:44:53,880 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:53,892 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 05:44:53,892 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:53,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [988211052] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:53,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:44:53,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 05:44:53,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648163381] [2024-11-09 05:44:53,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:53,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:53,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:53,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:53,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:44:53,895 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 05:44:53,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:53,921 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2024-11-09 05:44:53,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:53,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 30 [2024-11-09 05:44:53,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:53,923 INFO L225 Difference]: With dead ends: 34 [2024-11-09 05:44:53,923 INFO L226 Difference]: Without dead ends: 33 [2024-11-09 05:44:53,923 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 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 05:44:53,924 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:53,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 41 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:53,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-09 05:44:53,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2024-11-09 05:44:53,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 25 states have (on average 1.24) internal successors, (31), 28 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:53,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-11-09 05:44:53,931 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 30 [2024-11-09 05:44:53,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:53,934 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-11-09 05:44:53,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 05:44:53,935 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-11-09 05:44:53,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-09 05:44:53,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:53,937 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:53,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 05:44:54,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:54,138 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:54,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:54,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1232756043, now seen corresponding path program 1 times [2024-11-09 05:44:54,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:54,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660662798] [2024-11-09 05:44:54,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:54,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:54,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:54,218 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:44:54,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:54,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660662798] [2024-11-09 05:44:54,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660662798] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:54,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114590201] [2024-11-09 05:44:54,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:54,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:54,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:54,221 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:54,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 05:44:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:54,296 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:44:54,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:54,311 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-09 05:44:54,311 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:44:54,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114590201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:54,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:44:54,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-09 05:44:54,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437784995] [2024-11-09 05:44:54,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:54,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:44:54,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:54,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:44:54,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:44:54,314 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 05:44:54,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:44:54,341 INFO L93 Difference]: Finished difference Result 34 states and 37 transitions. [2024-11-09 05:44:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:44:54,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 31 [2024-11-09 05:44:54,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:44:54,343 INFO L225 Difference]: With dead ends: 34 [2024-11-09 05:44:54,343 INFO L226 Difference]: Without dead ends: 33 [2024-11-09 05:44:54,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 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 05:44:54,344 INFO L432 NwaCegarLoop]: 23 mSDtfsCounter, 0 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:44:54,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 42 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:44:54,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2024-11-09 05:44:54,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2024-11-09 05:44:54,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 29 states have internal predecessors, (32), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:44:54,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 36 transitions. [2024-11-09 05:44:54,350 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 36 transitions. Word has length 31 [2024-11-09 05:44:54,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:44:54,350 INFO L471 AbstractCegarLoop]: Abstraction has 33 states and 36 transitions. [2024-11-09 05:44:54,351 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 05:44:54,351 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 36 transitions. [2024-11-09 05:44:54,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-09 05:44:54,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:44:54,351 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:44:54,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 05:44:54,555 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-09 05:44:54,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:44:54,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:44:54,557 INFO L85 PathProgramCache]: Analyzing trace with hash -439268231, now seen corresponding path program 1 times [2024-11-09 05:44:54,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:44:54,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806377710] [2024-11-09 05:44:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:54,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:44:54,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:54,633 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:44:54,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:44:54,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806377710] [2024-11-09 05:44:54,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806377710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:44:54,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959625223] [2024-11-09 05:44:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:44:54,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:44:54,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:44:54,636 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:44:54,638 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 05:44:54,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:44:54,711 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:44:54,713 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:44:54,735 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:44:54,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:44:54,781 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 05:44:54,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959625223] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:44:54,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [699058003] [2024-11-09 05:44:54,784 INFO L159 IcfgInterpreter]: Started Sifa with 23 locations of interest [2024-11-09 05:44:54,784 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:44:54,785 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:44:54,785 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:44:54,785 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:44:55,665 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-09 05:44:56,113 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:44:59,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [699058003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:44:59,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:44:59,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5, 4, 5] total 26 [2024-11-09 05:44:59,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698283863] [2024-11-09 05:44:59,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:44:59,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-09 05:44:59,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:44:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-09 05:44:59,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=559, Unknown=2, NotChecked=0, Total=650 [2024-11-09 05:44:59,213 INFO L87 Difference]: Start difference. First operand 33 states and 36 transitions. Second operand has 18 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:45:01,463 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 05:45:03,557 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 05:45:03,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:03,726 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2024-11-09 05:45:03,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-09 05:45:03,727 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2024-11-09 05:45:03,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:03,729 INFO L225 Difference]: With dead ends: 37 [2024-11-09 05:45:03,732 INFO L226 Difference]: Without dead ends: 35 [2024-11-09 05:45:03,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 74 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=89, Invalid=559, Unknown=2, NotChecked=0, Total=650 [2024-11-09 05:45:03,733 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 11 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:03,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 57 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 219 Invalid, 2 Unknown, 0 Unchecked, 4.5s Time] [2024-11-09 05:45:03,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2024-11-09 05:45:03,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2024-11-09 05:45:03,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 28 states have (on average 1.2142857142857142) internal successors, (34), 31 states have internal predecessors, (34), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:45:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 38 transitions. [2024-11-09 05:45:03,749 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 38 transitions. Word has length 32 [2024-11-09 05:45:03,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:03,749 INFO L471 AbstractCegarLoop]: Abstraction has 35 states and 38 transitions. [2024-11-09 05:45:03,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 1.4) internal successors, (21), 14 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:45:03,757 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 38 transitions. [2024-11-09 05:45:03,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 05:45:03,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:03,758 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:03,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 05:45:03,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:03,959 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:45:03,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -886825042, now seen corresponding path program 1 times [2024-11-09 05:45:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:03,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647814489] [2024-11-09 05:45:03,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:03,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:04,104 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:45:04,105 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:04,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647814489] [2024-11-09 05:45:04,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647814489] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:04,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081387316] [2024-11-09 05:45:04,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:04,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:04,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:04,108 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:04,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 05:45:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:04,224 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:45:04,225 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:45:04,254 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:04,318 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 05:45:04,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081387316] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:04,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1759134902] [2024-11-09 05:45:04,322 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 05:45:04,323 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:04,324 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:04,324 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:04,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:05,501 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-09 05:45:05,967 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:07,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1759134902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:07,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:07,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [5, 4, 5] total 27 [2024-11-09 05:45:07,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295770216] [2024-11-09 05:45:07,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:07,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 05:45:07,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:07,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 05:45:07,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=605, Unknown=4, NotChecked=0, Total=702 [2024-11-09 05:45:07,181 INFO L87 Difference]: Start difference. First operand 35 states and 38 transitions. Second operand has 19 states, 16 states have (on average 1.4375) internal successors, (23), 15 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 05:45:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:07,803 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2024-11-09 05:45:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-09 05:45:07,803 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 16 states have (on average 1.4375) internal successors, (23), 15 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) Word has length 36 [2024-11-09 05:45:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:07,804 INFO L225 Difference]: With dead ends: 35 [2024-11-09 05:45:07,804 INFO L226 Difference]: Without dead ends: 32 [2024-11-09 05:45:07,805 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 84 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=113, Invalid=749, Unknown=8, NotChecked=0, Total=870 [2024-11-09 05:45:07,806 INFO L432 NwaCegarLoop]: 3 mSDtfsCounter, 11 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:07,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 9 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-09 05:45:07,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2024-11-09 05:45:07,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2024-11-09 05:45:07,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.1071428571428572) internal successors, (31), 28 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 05:45:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2024-11-09 05:45:07,821 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 36 [2024-11-09 05:45:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:07,822 INFO L471 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2024-11-09 05:45:07,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 16 states have (on average 1.4375) internal successors, (23), 15 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 05:45:07,824 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2024-11-09 05:45:07,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-09 05:45:07,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:07,825 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:07,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 05:45:08,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:08,026 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:45:08,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:08,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1060891146, now seen corresponding path program 1 times [2024-11-09 05:45:08,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:08,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806376089] [2024-11-09 05:45:08,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:08,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:08,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:45:08,142 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:08,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806376089] [2024-11-09 05:45:08,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806376089] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:08,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713274414] [2024-11-09 05:45:08,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:08,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:08,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:08,145 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:08,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 05:45:08,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:08,244 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 05:45:08,245 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:45:08,275 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:45:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 05:45:08,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713274414] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:45:08,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [748532754] [2024-11-09 05:45:08,333 INFO L159 IcfgInterpreter]: Started Sifa with 24 locations of interest [2024-11-09 05:45:08,333 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:45:08,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:45:08,334 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:45:08,334 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 05:45:09,342 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 10 for LOIs [2024-11-09 05:45:09,656 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 05:45:11,015 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2084#(and (<= 1 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_~#x~0#1.base|) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)) (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648)) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647))' at error location [2024-11-09 05:45:11,015 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 05:45:11,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 05:45:11,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 5] total 10 [2024-11-09 05:45:11,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322368896] [2024-11-09 05:45:11,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 05:45:11,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 05:45:11,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:11,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 05:45:11,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=651, Unknown=5, NotChecked=0, Total=756 [2024-11-09 05:45:11,019 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:45:11,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:11,076 INFO L93 Difference]: Finished difference Result 66 states and 73 transitions. [2024-11-09 05:45:11,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:45:11,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 39 [2024-11-09 05:45:11,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:11,077 INFO L225 Difference]: With dead ends: 66 [2024-11-09 05:45:11,077 INFO L226 Difference]: Without dead ends: 40 [2024-11-09 05:45:11,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 91 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 304 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=100, Invalid=651, Unknown=5, NotChecked=0, Total=756 [2024-11-09 05:45:11,079 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:11,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 96 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:45:11,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-09 05:45:11,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-09 05:45:11,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 36 states have (on average 1.0833333333333333) internal successors, (39), 36 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 05:45:11,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-11-09 05:45:11,087 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 39 [2024-11-09 05:45:11,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:11,087 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-11-09 05:45:11,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 states have internal predecessors, (41), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-09 05:45:11,088 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-11-09 05:45:11,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-09 05:45:11,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:45:11,089 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:11,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-09 05:45:11,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 05:45:11,293 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2024-11-09 05:45:11,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:45:11,293 INFO L85 PathProgramCache]: Analyzing trace with hash 735343172, now seen corresponding path program 2 times [2024-11-09 05:45:11,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:45:11,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953287317] [2024-11-09 05:45:11,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:45:11,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:45:11,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:45:11,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-09 05:45:11,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:45:11,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953287317] [2024-11-09 05:45:11,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953287317] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:45:11,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039568964] [2024-11-09 05:45:11,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 05:45:11,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:11,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:45:11,403 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:45:11,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 05:45:11,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 05:45:11,483 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 05:45:11,484 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:45:11,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:45:11,513 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 05:45:11,514 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:45:11,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039568964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:45:11,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:45:11,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-09 05:45:11,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189091021] [2024-11-09 05:45:11,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:45:11,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:45:11,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:45:11,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:45:11,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:45:11,516 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 05:45:11,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:45:11,551 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2024-11-09 05:45:11,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:45:11,552 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 47 [2024-11-09 05:45:11,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:45:11,552 INFO L225 Difference]: With dead ends: 40 [2024-11-09 05:45:11,553 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 05:45:11,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 05:45:11,554 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 0 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:45:11,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 05:45:11,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 05:45:11,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 05:45:11,555 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 05:45:11,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 05:45:11,555 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2024-11-09 05:45:11,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:45:11,556 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 05:45:11,556 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 05:45:11,556 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 05:45:11,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 05:45:11,559 INFO L782 garLoopResultBuilder]: Registering result SAFE for location borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2024-11-09 05:45:11,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2024-11-09 05:45:11,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2024-11-09 05:45:11,560 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2024-11-09 05:45:11,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2024-11-09 05:45:11,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2024-11-09 05:45:11,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2024-11-09 05:45:11,561 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2024-11-09 05:45:11,580 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-09 05:45:11,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:45:11,768 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:45:11,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 05:45:14,312 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 05:45:14,327 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,329 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-09 05:45:14,329 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-09 05:45:14,329 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,330 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-09 05:45:14,330 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-09 05:45:14,334 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,335 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 05:45:14,335 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!base [2024-11-09 05:45:14,335 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~#x~0!offset [2024-11-09 05:45:14,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-09 05:45:14,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-09 05:45:14,337 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #memory_int [2024-11-09 05:45:14,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array IdentifierExpression[#memory_int,GLOBAL] [2024-11-09 05:45:14,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Cannot backtranslate array access to array ArrayAccessExpression[IdentifierExpression[#memory_int,GLOBAL],[IdentifierExpression[~x!base,]]] [2024-11-09 05:45:14,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-09 05:45:14,338 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!base [2024-11-09 05:45:14,339 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-09 05:45:14,339 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~x!offset [2024-11-09 05:45:14,339 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-09 05:45:14,355 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,355 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-09 05:45:14,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-09 05:45:14,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #StackHeapBarrier [2024-11-09 05:45:14,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!offset [2024-11-09 05:45:14,356 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: #in~x!base [2024-11-09 05:45:14,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 05:45:14,357 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-09 05:45:14,361 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 05:45:14 BoogieIcfgContainer [2024-11-09 05:45:14,362 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 05:45:14,362 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 05:45:14,362 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 05:45:14,363 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 05:45:14,363 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:44:47" (3/4) ... [2024-11-09 05:45:14,366 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 05:45:14,372 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bor [2024-11-09 05:45:14,380 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-09 05:45:14,382 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-09 05:45:14,382 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-09 05:45:14,382 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:45:14,383 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 05:45:14,519 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 05:45:14,520 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 05:45:14,520 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 05:45:14,521 INFO L158 Benchmark]: Toolchain (without parser) took 28436.35ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 114.3MB in the beginning and 202.1MB in the end (delta: -87.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,521 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 05:45:14,521 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.72ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 101.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,522 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.65ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,522 INFO L158 Benchmark]: Boogie Preprocessor took 28.65ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,523 INFO L158 Benchmark]: RCFGBuilder took 516.96ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 100.7MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,523 INFO L158 Benchmark]: TraceAbstraction took 27356.59ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 100.0MB in the beginning and 207.3MB in the end (delta: -107.3MB). Peak memory consumption was 138.1MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,524 INFO L158 Benchmark]: Witness Printer took 157.76ms. Allocated memory is still 251.7MB. Free memory was 207.3MB in the beginning and 202.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 05:45:14,528 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 117.4MB. Free memory is still 90.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.72ms. Allocated memory is still 144.7MB. Free memory was 114.3MB in the beginning and 101.8MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.65ms. Allocated memory is still 144.7MB. Free memory was 101.8MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.65ms. Allocated memory is still 144.7MB. Free memory was 99.7MB in the beginning and 98.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.96ms. Allocated memory is still 144.7MB. Free memory was 98.3MB in the beginning and 100.7MB in the end (delta: -2.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 27356.59ms. Allocated memory was 144.7MB in the beginning and 251.7MB in the end (delta: 107.0MB). Free memory was 100.0MB in the beginning and 207.3MB in the end (delta: -107.3MB). Peak memory consumption was 138.1MB. Max. memory is 16.1GB. * Witness Printer took 157.76ms. Allocated memory is still 251.7MB. Free memory was 207.3MB in the beginning and 202.1MB in the end (delta: 5.3MB). 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: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - 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: ~#x~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~#x~0!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - 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],[IdentifierExpression[~x!base,]]] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #StackHeapBarrier - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!offset - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: #in~x!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 * 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: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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, 35 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 24.7s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 5.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 782 SdHoareTripleChecker+Invalid, 5.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 561 mSDsCounter, 29 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 847 IncrementalHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 29 mSolverCounterUnsat, 221 mSDtfsCounter, 847 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 558 GetRequests, 416 SyntacticMatches, 9 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 7.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=10, InterpolantAutomatonStates: 81, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 515 NumberOfCodeBlocks, 483 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 625 ConstructedInterpolants, 0 QuantifiedInterpolants, 869 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1073 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 25 InterpolantComputations, 6 PerfectInterpolantSequences, 257/287 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: 5.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 75, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 199, TOOLS_POST_TIME: 4.3s, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 221, TOOLS_QUANTIFIERELIM_TIME: 4.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 357, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 32, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 25, DOMAIN_ISSUBSETEQ_TIME: 0.3s, DOMAIN_ISBOTTOM_APPLICATIONS: 75, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME: 4.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 4.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 25, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 0.7s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.7s, 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: 1285, DAG_COMPRESSION_RETAINED_NODES: 249, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((i == 0) || ((1 <= i) && (i <= 100000))) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((ret2 <= 2147483647) && (0 <= i)) && (0 <= (ret2 + 2147483648))) && (i <= 2147483647)) && (0 <= (ret + 2147483648))) && (ret <= 2147483647)) - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((i <= 2147483647) && (2 <= i)) || (1 == i)) RESULT: Ultimate proved your program to be correct! [2024-11-09 05:45:14,577 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e90c04d5-199e-461d-9ef1-7fd87f6f539f/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE