./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/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_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/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_d26c3ef7-46b3-42af-a79f-ee8a751ec993/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 007fc8a389a67fb47c7d326d3f1d284696dfe5de13661e77d6d1bf7cce285194 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 04:29:26,053 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:29:26,147 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Overflow-32bit-Taipan_Default.epf [2024-11-09 04:29:26,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:29:26,156 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:29:26,190 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:29:26,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:29:26,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:29:26,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:29:26,194 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:29:26,194 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 04:29:26,195 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 04:29:26,195 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 04:29:26,195 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 04:29:26,196 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 04:29:26,196 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 04:29:26,196 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 04:29:26,197 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 04:29:26,200 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 04:29:26,201 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 04:29:26,201 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 04:29:26,204 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 04:29:26,205 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:29:26,205 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:29:26,206 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 04:29:26,223 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:29:26,225 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 04:29:26,226 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:29:26,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:29:26,227 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:29:26,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:29:26,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:29:26,229 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 04:29:26,229 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 04:29:26,230 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 04:29:26,230 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:29:26,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:29:26,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:29:26,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:29:26,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:29:26,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:26,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:29:26,232 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:29:26,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:29:26,233 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 04:29:26,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:29:26,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:29:26,234 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 04:29:26,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:29:26,234 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_d26c3ef7-46b3-42af-a79f-ee8a751ec993/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 007fc8a389a67fb47c7d326d3f1d284696dfe5de13661e77d6d1bf7cce285194 [2024-11-09 04:29:26,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:29:26,611 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:29:26,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:29:26,617 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:29:26,618 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:29:26,619 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i Unable to find full path for "g++" [2024-11-09 04:29:28,985 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:29:29,240 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:29:29,243 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/sv-benchmarks/c/array-memsafety/openbsd_cmemchr-alloca-2.i [2024-11-09 04:29:29,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/data/8794b9fe2/663db4e6606f42d5a12f6f5181a350d1/FLAG0cb759b2e [2024-11-09 04:29:29,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/data/8794b9fe2/663db4e6606f42d5a12f6f5181a350d1 [2024-11-09 04:29:29,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:29:29,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:29:29,279 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:29,280 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:29:29,287 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:29:29,288 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e76d702 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29, skipping insertion in model container [2024-11-09 04:29:29,292 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,339 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:29:29,722 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:29,732 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:29:29,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:29:29,838 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:29:29,839 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29 WrapperNode [2024-11-09 04:29:29,839 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:29:29,840 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:29,840 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:29:29,840 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:29:29,848 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,891 INFO L138 Inliner]: procedures = 117, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-11-09 04:29:29,892 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:29:29,893 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:29:29,893 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:29:29,893 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:29:29,903 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,903 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,908 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,909 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,918 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,921 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,923 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,924 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,926 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:29:29,927 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:29:29,928 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:29:29,928 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:29:29,930 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (1/1) ... [2024-11-09 04:29:29,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 04:29:29,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:29,975 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 04:29:29,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 04:29:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 04:29:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 04:29:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:29:30,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:29:30,007 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:29:30,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:29:30,126 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:29:30,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:29:30,313 INFO L? ?]: Removed 30 outVars from TransFormulas that were not future-live. [2024-11-09 04:29:30,313 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:29:30,380 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:29:30,380 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:29:30,381 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:30 BoogieIcfgContainer [2024-11-09 04:29:30,381 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:29:30,384 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:29:30,384 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:29:30,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:29:30,388 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:29:29" (1/3) ... [2024-11-09 04:29:30,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b2414f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:30, skipping insertion in model container [2024-11-09 04:29:30,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:29:29" (2/3) ... [2024-11-09 04:29:30,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b2414f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:29:30, skipping insertion in model container [2024-11-09 04:29:30,390 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:30" (3/3) ... [2024-11-09 04:29:30,391 INFO L112 eAbstractionObserver]: Analyzing ICFG openbsd_cmemchr-alloca-2.i [2024-11-09 04:29:30,410 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:29:30,411 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-09 04:29:30,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:29:30,491 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;@6bc7bc16, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:29:30,491 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-09 04:29:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 15 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:30,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-09 04:29:30,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:30,501 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2024-11-09 04:29:30,501 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:29:30,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:30,509 INFO L85 PathProgramCache]: Analyzing trace with hash 3027919, now seen corresponding path program 1 times [2024-11-09 04:29:30,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:30,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840689988] [2024-11-09 04:29:30,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:30,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:30,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:30,856 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 04:29:30,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:30,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840689988] [2024-11-09 04:29:30,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840689988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:30,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:30,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:29:30,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491539794] [2024-11-09 04:29:30,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:30,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:30,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:30,910 INFO L87 Difference]: Start difference. First operand has 16 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 15 states have internal predecessors, (21), 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) 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 04:29:30,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:30,980 INFO L93 Difference]: Finished difference Result 20 states and 24 transitions. [2024-11-09 04:29:30,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:30,983 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 04:29:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:30,990 INFO L225 Difference]: With dead ends: 20 [2024-11-09 04:29:30,990 INFO L226 Difference]: Without dead ends: 6 [2024-11-09 04:29:30,992 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 04:29:30,996 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 1 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:30,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 29 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:31,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2024-11-09 04:29:31,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2024-11-09 04:29:31,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:31,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2024-11-09 04:29:31,032 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2024-11-09 04:29:31,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:31,033 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2024-11-09 04:29:31,033 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 04:29:31,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2024-11-09 04:29:31,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-09 04:29:31,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:31,035 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 04:29:31,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:29:31,037 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:29:31,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:31,038 INFO L85 PathProgramCache]: Analyzing trace with hash 93865547, now seen corresponding path program 1 times [2024-11-09 04:29:31,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:31,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9457832] [2024-11-09 04:29:31,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:31,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:31,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:31,123 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 04:29:31,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:31,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9457832] [2024-11-09 04:29:31,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9457832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:29:31,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:29:31,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 04:29:31,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655118430] [2024-11-09 04:29:31,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:29:31,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:29:31,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:31,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:29:31,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:29:31,130 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:31,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:31,162 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2024-11-09 04:29:31,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:29:31,162 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2024-11-09 04:29:31,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:31,163 INFO L225 Difference]: With dead ends: 11 [2024-11-09 04:29:31,163 INFO L226 Difference]: Without dead ends: 10 [2024-11-09 04:29:31,164 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 04:29:31,165 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:31,166 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 04:29:31,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-09 04:29:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2024-11-09 04:29:31,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:31,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2024-11-09 04:29:31,170 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2024-11-09 04:29:31,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:31,171 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2024-11-09 04:29:31,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:31,171 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2024-11-09 04:29:31,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-09 04:29:31,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:31,172 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-09 04:29:31,173 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:29:31,173 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:29:31,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:31,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1480409266, now seen corresponding path program 1 times [2024-11-09 04:29:31,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:31,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647712380] [2024-11-09 04:29:31,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:31,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:31,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:31,312 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:31,312 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:31,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647712380] [2024-11-09 04:29:31,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647712380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:31,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1715823399] [2024-11-09 04:29:31,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:31,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:31,314 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:31,316 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:31,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 04:29:31,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:31,408 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:29:31,413 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:31,473 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:29:31,563 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:31,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1715823399] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:29:31,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1459620934] [2024-11-09 04:29:31,596 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-09 04:29:31,596 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:29:31,602 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:29:31,612 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:29:31,612 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:29:32,746 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:29:33,062 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '141#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~nondetArea~0#1.base|) (= |ULTIMATE.start_main_~nondetArea~0#1.offset| 0) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_#t~malloc8#1.base|) (<= 0 (+ |ULTIMATE.start_main_~c~0#1| 2147483648)) (exists ((|v_#memory_int_9| (Array Int (Array Int Int))) (|v_ULTIMATE.start_main_#t~post10#1_27| Int)) (and (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_27|) 128)) (<= 2147483647 |v_ULTIMATE.start_main_#t~post10#1_27|) (= |#memory_int| (store |v_#memory_int_9| |ULTIMATE.start_main_~nondetArea~0#1.base| (store (select |v_#memory_int_9| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_27| (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_27|)))) (<= (+ |v_ULTIMATE.start_main_#t~post10#1_27| 1) |ULTIMATE.start_main_~n~0#1|) (<= (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_27|) 127))))' at error location [2024-11-09 04:29:33,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:29:33,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:29:33,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-09 04:29:33,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319109978] [2024-11-09 04:29:33,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:29:33,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 04:29:33,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:33,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 04:29:33,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:29:33,068 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:33,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:33,137 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2024-11-09 04:29:33,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-09 04:29:33,138 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 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 04:29:33,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:33,139 INFO L225 Difference]: With dead ends: 23 [2024-11-09 04:29:33,140 INFO L226 Difference]: Without dead ends: 22 [2024-11-09 04:29:33,141 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:29:33,142 INFO L432 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:33,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:33,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-09 04:29:33,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2024-11-09 04:29:33,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.0476190476190477) internal successors, (22), 21 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:33,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2024-11-09 04:29:33,150 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 9 [2024-11-09 04:29:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:33,150 INFO L471 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2024-11-09 04:29:33,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2024-11-09 04:29:33,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-09 04:29:33,151 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:29:33,151 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-09 04:29:33,173 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 04:29:33,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:33,353 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2024-11-09 04:29:33,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:29:33,354 INFO L85 PathProgramCache]: Analyzing trace with hash -741741849, now seen corresponding path program 2 times [2024-11-09 04:29:33,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 04:29:33,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211368777] [2024-11-09 04:29:33,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:29:33,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:29:33,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:29:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:29:33,708 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 04:29:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211368777] [2024-11-09 04:29:33,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211368777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 04:29:33,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566855164] [2024-11-09 04:29:33,708 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 04:29:33,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:33,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 04:29:33,712 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 04:29:33,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 04:29:33,782 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-09 04:29:33,782 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 04:29:33,783 INFO L255 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 04:29:33,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 04:29:33,939 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 04:29:33,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 04:29:34,012 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-09 04:29:34,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566855164] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 04:29:34,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1310495397] [2024-11-09 04:29:34,014 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2024-11-09 04:29:34,016 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 04:29:34,017 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 04:29:34,018 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 04:29:34,019 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2024-11-09 04:29:34,614 INFO L180 IcfgInterpreter]: Interpretation finished [2024-11-09 04:29:35,123 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '336#(and (<= 1 |#StackHeapBarrier|) (<= 2 |ULTIMATE.start_main_~nondetArea~0#1.base|) (exists ((|v_ULTIMATE.start_main_#t~post10#1_36| Int) (|v_#memory_int_18| (Array Int (Array Int Int)))) (and (<= 0 (+ 128 (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_36|))) (<= (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_36|) 127) (<= 2147483647 |v_ULTIMATE.start_main_#t~post10#1_36|) (<= (+ |v_ULTIMATE.start_main_#t~post10#1_36| 1) |ULTIMATE.start_main_~n~0#1|) (= |#memory_int| (store |v_#memory_int_18| |ULTIMATE.start_main_~nondetArea~0#1.base| (store (select |v_#memory_int_18| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_36| (select (select |#memory_int| |ULTIMATE.start_main_~nondetArea~0#1.base|) |v_ULTIMATE.start_main_#t~post10#1_36|)))))) (= |ULTIMATE.start_main_~nondetArea~0#1.offset| 0) (<= |ULTIMATE.start_main_~c~0#1| 2147483647) (<= 2 |ULTIMATE.start_main_#t~malloc8#1.base|) (<= 0 (+ |ULTIMATE.start_main_~c~0#1| 2147483648)))' at error location [2024-11-09 04:29:35,123 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2024-11-09 04:29:35,123 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 04:29:35,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 3, 3] total 14 [2024-11-09 04:29:35,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246928164] [2024-11-09 04:29:35,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 04:29:35,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-09 04:29:35,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 04:29:35,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-09 04:29:35,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-09 04:29:35,126 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand has 16 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:35,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:29:35,432 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2024-11-09 04:29:35,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-09 04:29:35,433 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 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 21 [2024-11-09 04:29:35,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:29:35,433 INFO L225 Difference]: With dead ends: 27 [2024-11-09 04:29:35,434 INFO L226 Difference]: Without dead ends: 0 [2024-11-09 04:29:35,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 47 SyntacticMatches, 6 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2024-11-09 04:29:35,435 INFO L432 NwaCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 04:29:35,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 04:29:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-09 04:29:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-09 04:29:35,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:35,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-09 04:29:35,437 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2024-11-09 04:29:35,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:29:35,438 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-09 04:29:35,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.4) internal successors, (36), 15 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 04:29:35,438 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-09 04:29:35,438 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-09 04:29:35,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2024-11-09 04:29:35,441 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2024-11-09 04:29:35,462 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 04:29:35,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 04:29:35,649 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1] [2024-11-09 04:29:35,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-09 04:29:35,703 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-09 04:29:35,717 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 04:29:35 BoogieIcfgContainer [2024-11-09 04:29:35,717 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-09 04:29:35,718 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-09 04:29:35,718 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-09 04:29:35,719 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-09 04:29:35,719 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:29:30" (3/4) ... [2024-11-09 04:29:35,722 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-09 04:29:35,729 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-09 04:29:35,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-09 04:29:35,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-09 04:29:35,732 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-09 04:29:35,828 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/witness.graphml [2024-11-09 04:29:35,832 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/bin/utaipan-verify-YMUCfTKeje/witness.yml [2024-11-09 04:29:35,832 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-09 04:29:35,833 INFO L158 Benchmark]: Toolchain (without parser) took 6555.01ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 103.5MB in the beginning and 127.8MB in the end (delta: -24.3MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,833 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-09 04:29:35,833 INFO L158 Benchmark]: CACSL2BoogieTranslator took 560.09ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 84.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,833 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.03ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,834 INFO L158 Benchmark]: Boogie Preprocessor took 33.98ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,834 INFO L158 Benchmark]: RCFGBuilder took 453.71ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 66.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,834 INFO L158 Benchmark]: TraceAbstraction took 5333.43ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 65.3MB in the beginning and 133.0MB in the end (delta: -67.7MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,835 INFO L158 Benchmark]: Witness Printer took 113.97ms. Allocated memory is still 247.5MB. Free memory was 133.0MB in the beginning and 127.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-09 04:29:35,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 142.6MB. Free memory is still 110.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 560.09ms. Allocated memory is still 142.6MB. Free memory was 103.5MB in the beginning and 84.6MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.03ms. Allocated memory is still 142.6MB. Free memory was 84.6MB in the beginning and 82.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.98ms. Allocated memory is still 142.6MB. Free memory was 82.7MB in the beginning and 81.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 453.71ms. Allocated memory is still 142.6MB. Free memory was 81.1MB in the beginning and 66.0MB in the end (delta: 15.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5333.43ms. Allocated memory was 142.6MB in the beginning and 247.5MB in the end (delta: 104.9MB). Free memory was 65.3MB in the beginning and 133.0MB in the end (delta: -67.7MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 113.97ms. Allocated memory is still 247.5MB. Free memory was 133.0MB in the beginning and 127.8MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * 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: 537]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 537]: 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 1 procedures, 16 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 4, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1 mSDsluCounter, 35 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 23 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 115 IncrementalHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 12 mSDtfsCounter, 115 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 116 GetRequests, 62 SyntacticMatches, 8 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 292 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=3, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 69 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 341 SizeOfPredicates, 2 NumberOfNonLiveVariables, 96 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 56/132 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: (((n <= 2147483647) && (0 <= i)) && (1 <= n)) RESULT: Ultimate proved your program to be correct! [2024-11-09 04:29:35,879 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26c3ef7-46b3-42af-a79f-ee8a751ec993/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