./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array18_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/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_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array18_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/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_86f5d075-fbfa-43ff-ad98-e199549a33ab/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 91342ec879332f5d2cf6840d919ddc3d2a815377394d5610d880c093520bd843 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 00:01:58,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:01:58,320 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-12 00:01:58,330 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:01:58,331 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-12 00:01:58,363 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:01:58,365 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:01:58,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-12 00:01:58,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 00:01:58,373 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 00:01:58,373 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:01:58,374 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:01:58,374 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:01:58,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:01:58,377 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:01:58,377 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:01:58,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:01:58,378 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 00:01:58,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 00:01:58,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:01:58,380 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:01:58,381 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-12 00:01:58,381 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-12 00:01:58,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:01:58,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:01:58,383 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:01:58,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:01:58,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:01:58,385 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-12 00:01:58,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:01:58,386 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:01:58,387 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_86f5d075-fbfa-43ff-ad98-e199549a33ab/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91342ec879332f5d2cf6840d919ddc3d2a815377394d5610d880c093520bd843 [2023-11-12 00:01:58,740 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:01:58,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:01:58,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:01:58,777 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:01:58,778 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:01:58,779 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/../../sv-benchmarks/c/termination-15/array18_alloca.i [2023-11-12 00:02:01,976 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:02:02,237 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:02:02,237 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/sv-benchmarks/c/termination-15/array18_alloca.i [2023-11-12 00:02:02,264 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/data/c4a8dff22/95136f5a804946adbabcb41ace63f2b1/FLAGdb6be7915 [2023-11-12 00:02:02,278 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/data/c4a8dff22/95136f5a804946adbabcb41ace63f2b1 [2023-11-12 00:02:02,280 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:02:02,281 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:02:02,283 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:02,283 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:02:02,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:02:02,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,290 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a9eb2b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02, skipping insertion in model container [2023-11-12 00:02:02,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,329 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:02:02,693 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:02,704 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:02:02,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:02:02,825 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:02:02,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02 WrapperNode [2023-11-12 00:02:02,826 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:02:02,827 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:02,827 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:02:02,828 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:02:02,836 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,851 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,874 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2023-11-12 00:02:02,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:02:02,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:02:02,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:02:02,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:02:02,886 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,888 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,907 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,908 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,910 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:02:02,911 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:02:02,911 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:02:02,912 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:02:02,913 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:02:02" (1/1) ... [2023-11-12 00:02:02,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-12 00:02:02,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/z3 [2023-11-12 00:02:02,947 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-12 00:02:02,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-12 00:02:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:02:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:02:02,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:02:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:02:02,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:02:02,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:02:03,077 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:02:03,081 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:02:03,269 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:02:03,340 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:02:03,340 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-12 00:02:03,343 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:03 BoogieIcfgContainer [2023-11-12 00:02:03,343 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:02:03,344 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-12 00:02:03,345 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-12 00:02:03,356 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-12 00:02:03,356 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:03" (1/1) ... [2023-11-12 00:02:03,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:02:03,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-11-12 00:02:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-11-12 00:02:03,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 00:02:03,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:03,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:03,754 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 00:02:03,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:03,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-12 00:02:03,815 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-12 00:02:03,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:02:03,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:03,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:03,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:03,929 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 00:02:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-12 00:02:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-12 00:02:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-12 00:02:03,969 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:03,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:04,039 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 00:02:04,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:04,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2023-11-12 00:02:04,065 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-11-12 00:02:04,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 00:02:04,066 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:04,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:04,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:04,232 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 00:02:04,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:04,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2023-11-12 00:02:04,410 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-11-12 00:02:04,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:02:04,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:04,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:04,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:04,789 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 00:02:05,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:05,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-12 00:02:05,455 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-12 00:02:05,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 00:02:05,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:05,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:02:05,618 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 00:02:06,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-12 00:02:06,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 33 states and 52 transitions. [2023-11-12 00:02:06,073 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 52 transitions. [2023-11-12 00:02:06,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-12 00:02:06,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-12 00:02:06,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:02:06,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:06,107 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:02:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:06,176 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 00:02:06,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 00:02:06,220 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-11-12 00:02:06,253 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,254 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,254 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,255 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,255 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,257 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:06,257 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:06,258 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 12.11 12:02:06 ImpRootNode [2023-11-12 00:02:06,261 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-12 00:02:06,262 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 00:02:06,262 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 00:02:06,262 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 00:02:06,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:02:03" (3/4) ... [2023-11-12 00:02:06,264 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-11-12 00:02:06,267 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,268 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,268 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,268 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,269 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:06,269 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,269 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-11-12 00:02:06,269 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-11-12 00:02:06,306 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86f5d075-fbfa-43ff-ad98-e199549a33ab/bin/ukojak-verify-0OAaufAVZV/witness.graphml [2023-11-12 00:02:06,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 00:02:06,307 INFO L158 Benchmark]: Toolchain (without parser) took 4025.55ms. Allocated memory is still 180.4MB. Free memory was 133.5MB in the beginning and 127.9MB in the end (delta: 5.6MB). Peak memory consumption was 6.6MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,308 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 180.4MB. Free memory is still 152.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:02:06,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.24ms. Allocated memory is still 180.4MB. Free memory was 133.5MB in the beginning and 116.1MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,309 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.66ms. Allocated memory is still 180.4MB. Free memory was 116.1MB in the beginning and 114.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,310 INFO L158 Benchmark]: Boogie Preprocessor took 35.06ms. Allocated memory is still 180.4MB. Free memory was 114.1MB in the beginning and 112.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,310 INFO L158 Benchmark]: RCFGBuilder took 432.29ms. Allocated memory is still 180.4MB. Free memory was 112.9MB in the beginning and 99.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,311 INFO L158 Benchmark]: CodeCheck took 2917.16ms. Allocated memory is still 180.4MB. Free memory was 98.8MB in the beginning and 130.0MB in the end (delta: -31.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 00:02:06,312 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 180.4MB. Free memory was 130.0MB in the beginning and 127.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 00:02:06,315 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, 18 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 83 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 292 IncrementalHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 83 mSolverCounterUnsat, 22 mSDtfsCounter, 292 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 126 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 FALSE !(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