./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 d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array18_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3 --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 0.3.0-dev-d790fec [2024-11-25 02:40:16,373 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 02:40:16,449 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-64bit-Kojak_Default.epf [2024-11-25 02:40:16,454 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 02:40:16,454 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 02:40:16,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 02:40:16,477 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 02:40:16,478 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 02:40:16,478 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 02:40:16,478 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 02:40:16,478 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 02:40:16,479 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 02:40:16,480 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 02:40:16,480 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 02:40:16,480 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 02:40:16,480 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 02:40:16,480 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 02:40:16,480 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 02:40:16,481 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 02:40:16,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 02:40:16,481 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:40:16,481 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 02:40:16,481 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 02:40:16,481 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 02:40:16,482 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 02:40:16,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 02:40:16,482 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_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3 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 [2024-11-25 02:40:16,788 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 02:40:16,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 02:40:16,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 02:40:16,804 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 02:40:16,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 02:40:16,809 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/termination-15/array18_alloca.i [2024-11-25 02:40:19,758 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/data/86cecee17/88dccd5cd0ca4c178b4da3fed5bc842e/FLAG65b7eb2c2 [2024-11-25 02:40:20,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 02:40:20,125 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/sv-benchmarks/c/termination-15/array18_alloca.i [2024-11-25 02:40:20,134 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/data/86cecee17/88dccd5cd0ca4c178b4da3fed5bc842e/FLAG65b7eb2c2 [2024-11-25 02:40:20,149 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/data/86cecee17/88dccd5cd0ca4c178b4da3fed5bc842e [2024-11-25 02:40:20,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 02:40:20,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 02:40:20,155 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 02:40:20,155 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 02:40:20,160 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 02:40:20,161 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,162 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab8aa3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20, skipping insertion in model container [2024-11-25 02:40:20,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,203 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 02:40:20,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:40:20,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 02:40:20,664 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 02:40:20,697 INFO L204 MainTranslator]: Completed translation [2024-11-25 02:40:20,697 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20 WrapperNode [2024-11-25 02:40:20,697 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 02:40:20,698 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 02:40:20,699 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 02:40:20,699 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 02:40:20,705 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,715 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,741 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2024-11-25 02:40:20,742 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 02:40:20,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 02:40:20,743 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 02:40:20,743 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 02:40:20,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,750 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,751 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,754 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,758 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,765 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,766 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,767 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,774 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 02:40:20,775 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 02:40:20,775 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 02:40:20,775 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 02:40:20,778 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 02:40:20" (1/1) ... [2024-11-25 02:40:20,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 02:40:20,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 02:40:20,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 02:40:20,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 02:40:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-25 02:40:20,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-25 02:40:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-25 02:40:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-25 02:40:20,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 02:40:20,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 02:40:20,933 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 02:40:20,936 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 02:40:21,147 INFO L? ?]: Removed 17 outVars from TransFormulas that were not future-live. [2024-11-25 02:40:21,147 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 02:40:21,240 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 02:40:21,240 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-25 02:40:21,244 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:40:21 BoogieIcfgContainer [2024-11-25 02:40:21,244 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 02:40:21,245 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 02:40:21,245 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 02:40:21,257 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 02:40:21,257 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:40:21" (1/1) ... [2024-11-25 02:40:21,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 02:40:21,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:21,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2024-11-25 02:40:21,322 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2024-11-25 02:40:21,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-25 02:40:21,324 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:21,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:21,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:21,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:21,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2024-11-25 02:40:21,691 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2024-11-25 02:40:21,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 02:40:21,692 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:21,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:21,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:21,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:21,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:21,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-25 02:40:21,859 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-25 02:40:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-25 02:40:21,859 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:21,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:21,925 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:21,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2024-11-25 02:40:21,943 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2024-11-25 02:40:21,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-25 02:40:21,943 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:21,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:22,112 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:22,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:22,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2024-11-25 02:40:22,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2024-11-25 02:40:22,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:40:22,312 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:22,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:22,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:22,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:23,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:23,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2024-11-25 02:40:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2024-11-25 02:40:23,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-25 02:40:23,612 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:23,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:23,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 02:40:23,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-25 02:40:24,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 02:40:24,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 33 states and 51 transitions. [2024-11-25 02:40:24,250 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2024-11-25 02:40:24,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-25 02:40:24,251 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 02:40:24,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 02:40:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:40:24,278 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:40:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:40:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:40:24,342 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-25 02:40:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-25 02:40:24,369 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-11-25 02:40:24,406 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 02:40:24 ImpRootNode [2024-11-25 02:40:24,407 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 02:40:24,407 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 02:40:24,407 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 02:40:24,408 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 02:40:24,408 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 02:40:21" (3/4) ... [2024-11-25 02:40:24,409 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-25 02:40:24,457 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 7. [2024-11-25 02:40:24,509 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 02:40:24,510 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_47f35e77-9936-49ea-855d-16e6513e5bcb/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 02:40:24,510 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 02:40:24,511 INFO L158 Benchmark]: Toolchain (without parser) took 4357.05ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 46.6MB in the end (delta: 57.2MB). Peak memory consumption was 53.4MB. Max. memory is 16.1GB. [2024-11-25 02:40:24,511 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:40:24,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 542.73ms. Allocated memory is still 142.6MB. Free memory was 103.8MB in the beginning and 85.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:40:24,511 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.59ms. Allocated memory is still 142.6MB. Free memory was 85.7MB in the beginning and 84.0MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:40:24,512 INFO L158 Benchmark]: Boogie Preprocessor took 31.63ms. Allocated memory is still 142.6MB. Free memory was 84.0MB in the beginning and 83.3MB in the end (delta: 679.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:40:24,514 INFO L158 Benchmark]: RCFGBuilder took 469.89ms. Allocated memory is still 142.6MB. Free memory was 83.3MB in the beginning and 69.0MB in the end (delta: 14.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 02:40:24,517 INFO L158 Benchmark]: CodeCheck took 3161.61ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 51.3MB in the end (delta: 17.7MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2024-11-25 02:40:24,517 INFO L158 Benchmark]: Witness Printer took 102.54ms. Allocated memory is still 142.6MB. Free memory was 51.3MB in the beginning and 46.6MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 02:40:24,519 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: 3.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 69 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 89 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 290 IncrementalHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 89 mSolverCounterUnsat, 22 mSDtfsCounter, 290 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, 1.5s 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, 134 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, ConComCheckerStatistics: 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