./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b --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 32bit --witnessprinter.graph.data.programhash 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 00:42:34,033 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 00:42:34,088 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 00:42:34,091 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 00:42:34,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 00:42:34,109 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 00:42:34,110 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 00:42:34,110 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 00:42:34,111 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 00:42:34,111 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 00:42:34,111 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 00:42:34,111 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 00:42:34,111 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 00:42:34,111 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 00:42:34,111 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 00:42:34,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 00:42:34,113 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 00:42:34,113 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:42:34,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 00:42:34,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 00:42:34,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 870a7e5617be5a547f8d530603b5c27ad6cbb74bb05a83654285fee7bbb92753 [2024-12-06 00:42:34,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 00:42:34,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 00:42:34,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 00:42:34,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 00:42:34,322 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 00:42:34,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2024-12-06 00:42:36,928 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/data/5472b1de7/f44ceb4822084d3a97816947e780bde2/FLAG09de82cf9 [2024-12-06 00:42:37,159 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 00:42:37,159 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/sv-benchmarks/c/array-memsafety/add_last-alloca-1.i [2024-12-06 00:42:37,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/data/5472b1de7/f44ceb4822084d3a97816947e780bde2/FLAG09de82cf9 [2024-12-06 00:42:37,496 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/data/5472b1de7/f44ceb4822084d3a97816947e780bde2 [2024-12-06 00:42:37,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 00:42:37,500 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 00:42:37,501 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 00:42:37,501 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 00:42:37,504 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 00:42:37,504 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,505 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a031a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37, skipping insertion in model container [2024-12-06 00:42:37,505 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 00:42:37,719 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:42:37,726 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 00:42:37,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 00:42:37,776 INFO L204 MainTranslator]: Completed translation [2024-12-06 00:42:37,776 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37 WrapperNode [2024-12-06 00:42:37,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 00:42:37,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 00:42:37,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 00:42:37,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 00:42:37,782 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,790 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,804 INFO L138 Inliner]: procedures = 115, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 59 [2024-12-06 00:42:37,804 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 00:42:37,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 00:42:37,805 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 00:42:37,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 00:42:37,809 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,811 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,811 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,816 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,817 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,820 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,821 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,821 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,823 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 00:42:37,824 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 00:42:37,824 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 00:42:37,824 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 00:42:37,825 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 12:42:37" (1/1) ... [2024-12-06 00:42:37,830 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 00:42:37,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 00:42:37,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 00:42:37,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 00:42:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 00:42:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 00:42:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-06 00:42:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-06 00:42:37,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 00:42:37,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 00:42:37,954 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 00:42:37,956 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 00:42:38,064 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-12-06 00:42:38,064 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 00:42:38,108 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 00:42:38,109 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-06 00:42:38,109 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:42:38 BoogieIcfgContainer [2024-12-06 00:42:38,109 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 00:42:38,110 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 00:42:38,110 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 00:42:38,121 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 00:42:38,122 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:42:38" (1/1) ... [2024-12-06 00:42:38,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 00:42:38,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:38,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2024-12-06 00:42:38,182 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2024-12-06 00:42:38,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 00:42:38,184 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:38,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:38,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:38,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:38,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 23 transitions. [2024-12-06 00:42:38,467 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2024-12-06 00:42:38,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 00:42:38,468 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:38,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:38,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:38,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:38,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2024-12-06 00:42:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2024-12-06 00:42:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 00:42:38,566 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:38,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:38,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-12-06 00:42:38,787 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-12-06 00:42:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 00:42:38,787 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:38,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:38,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:38,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-12-06 00:42:38,992 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-12-06 00:42:38,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 00:42:38,993 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:38,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:39,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:39,080 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:39,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 25 states and 32 transitions. [2024-12-06 00:42:39,245 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2024-12-06 00:42:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 00:42:39,245 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:39,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:40,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 31 states and 45 transitions. [2024-12-06 00:42:40,956 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 45 transitions. [2024-12-06 00:42:40,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 00:42:40,956 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:40,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:40,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:41,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:41,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:41,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2024-12-06 00:42:41,084 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2024-12-06 00:42:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-06 00:42:41,084 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:41,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:41,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 00:42:41,205 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 00:42:41,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 00:42:41,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2024-12-06 00:42:41,424 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2024-12-06 00:42:41,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 00:42:41,425 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 00:42:41,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 00:42:41,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:42:41,442 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:42:41,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:42:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:42:41,483 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 00:42:41,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 00:42:41,507 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 9 iterations. [2024-12-06 00:42:41,533 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 12:42:41 ImpRootNode [2024-12-06 00:42:41,533 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 00:42:41,533 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 00:42:41,533 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 00:42:41,533 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 00:42:41,534 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 12:42:38" (3/4) ... [2024-12-06 00:42:41,535 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 00:42:41,573 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-12-06 00:42:41,617 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 00:42:41,618 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 00:42:41,618 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 00:42:41,618 INFO L158 Benchmark]: Toolchain (without parser) took 4118.86ms. Allocated memory is still 142.6MB. Free memory was 117.5MB in the beginning and 72.7MB in the end (delta: 44.8MB). Peak memory consumption was 39.2MB. Max. memory is 16.1GB. [2024-12-06 00:42:41,619 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:42:41,619 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.89ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 101.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:42:41,619 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.20ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:42:41,620 INFO L158 Benchmark]: Boogie Preprocessor took 18.51ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.6MB in the end (delta: 883.1kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:42:41,620 INFO L158 Benchmark]: RCFGBuilder took 285.93ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 85.2MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 00:42:41,620 INFO L158 Benchmark]: CodeCheck took 3422.44ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 76.5MB in the end (delta: 8.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. [2024-12-06 00:42:41,620 INFO L158 Benchmark]: Witness Printer took 84.48ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 72.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 00:42:41,622 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, 16 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 56 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 161 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 499 IncrementalHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 161 mSolverCounterUnsat, 58 mSDtfsCounter, 499 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 494 GetRequests, 419 SyntacticMatches, 11 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1489 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 346 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 2/22 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, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 526]: integer overflow possible integer overflow possible We found a FailurePath: [L513] int i, j; [L514] int length = __VERIFIER_nondet_int(); [L515] COND FALSE !(length < 1 || length >= 2147483647 / sizeof(int)) [L516] int *arr = __builtin_alloca (length*sizeof(int)); VAL [arr={2:0}, length=2] [L517] COND FALSE !(!arr) [L518] int *a = arr; [L520] int k = 0; VAL [a={2:0}, arr={2:0}, k=0, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [a={2:0}, arr={2:0}, k=1, length=2] [L520] COND TRUE k < length [L522] arr[k] = __VERIFIER_nondet_int() [L520] k++ VAL [a={2:0}, arr={2:0}, k=2, length=2] [L520] COND FALSE !(k < length) [L525] EXPR \read(*a) [L525] EXPR arr + length - 1 VAL [a={2:0}, arr={2:0}, length=2] [L525] COND TRUE *a != *(arr + length - 1) [L526] EXPR \read(*a) [L526] EXPR arr + length - 1 VAL [a={2:0}, arr={2:0}, length=2] [L526] *a += *(arr + length - 1) VAL [a={2:0}, arr={2:0}, length=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 142.6MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.89ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 101.0MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.20ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 18.51ms. Allocated memory is still 142.6MB. Free memory was 99.5MB in the beginning and 98.6MB in the end (delta: 883.1kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.93ms. Allocated memory is still 142.6MB. Free memory was 98.6MB in the beginning and 85.2MB in the end (delta: 13.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 3422.44ms. Allocated memory is still 142.6MB. Free memory was 85.0MB in the beginning and 76.5MB in the end (delta: 8.6MB). Peak memory consumption was 5.6MB. Max. memory is 16.1GB. * Witness Printer took 84.48ms. Allocated memory is still 142.6MB. Free memory was 76.5MB in the beginning and 72.7MB in the end (delta: 3.8MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 00:42:41,639 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_73176c60-ff8c-477d-a1dd-09f4247e74fa/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)