./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array09_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array09_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV --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 Kojak --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:02:42,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:02:42,326 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:02:42,334 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:02:42,335 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:02:42,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:02:42,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:02:42,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:02:42,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:02:42,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:02:42,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:02:42,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:02:42,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:02:42,380 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:02:42,380 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:02:42,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:02:42,381 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:02:42,382 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:02:42,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:02:42,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:02:42,384 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:02:42,385 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:02:42,385 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:02:42,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:02:42,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:02:42,387 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:02:42,387 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:02:42,388 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:02:42,388 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:02:42,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:02:42,390 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:02:42,391 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 [2023-11-12 00:02:42,720 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:02:42,756 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:02:42,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:02:42,761 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:02:42,761 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:02:42,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-15/array09_alloca.i [2023-11-12 00:02:45,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:02:46,204 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:02:46,205 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/sv-benchmarks/c/termination-15/array09_alloca.i [2023-11-12 00:02:46,228 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/data/eff5cc635/6cc7f1b14b394718a619fdf7ae811991/FLAG1d2ac92ad [2023-11-12 00:02:46,245 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/data/eff5cc635/6cc7f1b14b394718a619fdf7ae811991 [2023-11-12 00:02:46,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:02:46,250 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:02:46,252 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:46,252 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:02:46,258 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:02:46,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@749b1bae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46, skipping insertion in model container [2023-11-12 00:02:46,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:02:46,621 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:46,633 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:02:46,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:46,759 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:02:46,760 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46 WrapperNode [2023-11-12 00:02:46,760 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:46,761 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:46,762 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:02:46,762 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:02:46,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,797 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,826 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-11-12 00:02:46,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:46,828 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:02:46,828 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:02:46,828 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:02:46,838 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,853 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,854 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,877 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,880 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,882 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:02:46,889 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:02:46,890 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:02:46,890 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:02:46,891 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:46" (1/1) ... [2023-11-12 00:02:46,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:02:46,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:02:46,926 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:02:46,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:02:46,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:02:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:02:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:02:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:02:46,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:02:46,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:02:47,098 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:02:47,101 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:02:47,279 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:02:47,351 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:02:47,351 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:02:47,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:47 BoogieIcfgContainer [2023-11-12 00:02:47,354 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:02:47,355 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:02:47,356 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:02:47,368 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:02:47,368 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:47" (1/1) ... [2023-11-12 00:02:47,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:02:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:47,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-12 00:02:47,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-12 00:02:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:02:47,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:47,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:47,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:47,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-11-12 00:02:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-11-12 00:02:47,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:02:47,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:47,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:48,002 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:48,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:48,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-11-12 00:02:48,027 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-11-12 00:02:48,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:02:48,027 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:48,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:48,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:48,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:48,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-11-12 00:02:48,243 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-11-12 00:02:48,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:02:48,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:48,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:48,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:48,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-11-12 00:02:48,555 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-11-12 00:02:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:02:48,559 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:48,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:48,707 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:48,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:48,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2023-11-12 00:02:48,924 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2023-11-12 00:02:48,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:02:48,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:48,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 00:02:50,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:50,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2023-11-12 00:02:50,130 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-11-12 00:02:50,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:02:50,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:50,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:50,174 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:02:50,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:50,233 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:02:50,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:50,273 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-11-12 00:02:50,294 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,295 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,296 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,296 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,298 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:50,298 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,298 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:50,299 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,302 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:02:50 ImpRootNode [2023-11-12 00:02:50,302 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:02:50,303 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:02:50,303 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:02:50,303 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:02:50,304 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:47" (3/4) ... [2023-11-12 00:02:50,304 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 00:02:50,308 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,308 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,309 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:50,310 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:50,310 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:50,344 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fc8205b9-a386-4592-9a31-a42cacbd40c8/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:02:50,344 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:02:50,345 INFO L158 Benchmark]: Toolchain (without parser) took 4095.26ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 85.9MB in the beginning and 78.6MB in the end (delta: 7.3MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,346 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 125.8MB. Free memory is still 73.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:02:50,346 INFO L158 Benchmark]: CACSL2BoogieTranslator took 508.91ms. Allocated memory is still 125.8MB. Free memory was 85.5MB in the beginning and 68.1MB in the end (delta: 17.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.71ms. Allocated memory is still 125.8MB. Free memory was 68.1MB in the beginning and 66.2MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,347 INFO L158 Benchmark]: Boogie Preprocessor took 60.99ms. Allocated memory is still 125.8MB. Free memory was 66.2MB in the beginning and 65.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:02:50,348 INFO L158 Benchmark]: RCFGBuilder took 465.14ms. Allocated memory was 125.8MB in the beginning and 178.3MB in the end (delta: 52.4MB). Free memory was 64.9MB in the beginning and 140.3MB in the end (delta: -75.4MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,349 INFO L158 Benchmark]: CodeCheck took 2946.92ms. Allocated memory is still 178.3MB. Free memory was 140.3MB in the beginning and 81.7MB in the end (delta: 58.6MB). Peak memory consumption was 57.5MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,349 INFO L158 Benchmark]: Witness Printer took 41.54ms. Allocated memory is still 178.3MB. Free memory was 81.7MB in the beginning and 78.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 00:02:50,353 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 20 mSDtfsCounter, 262 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 136 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND TRUE length < 1 [L367] length = 1 [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=1] [L370] COND TRUE i -1) [L370] i++ VAL [arr={2:0}, i=1, length=1] [L370] COND FALSE !(i