./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array19_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array19_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9 --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 aa6cff6feccdb2381551a0fc75acd9b1bca020b197764a63cc88475a7ca62ebf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 02:18:07,044 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 02:18:07,111 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 02:18:07,116 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 02:18:07,116 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 02:18:07,145 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 02:18:07,147 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 02:18:07,147 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 02:18:07,148 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 02:18:07,148 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 02:18:07,149 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 02:18:07,149 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 02:18:07,150 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 02:18:07,150 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 02:18:07,151 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 02:18:07,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 02:18:07,159 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 02:18:07,159 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 02:18:07,160 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 02:18:07,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 02:18:07,161 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 02:18:07,161 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 02:18:07,162 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 02:18:07,162 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 02:18:07,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 02:18:07,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:18:07,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 02:18:07,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 02:18:07,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 02:18:07,165 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 02:18:07,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 02:18:07,166 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 02:18:07,166 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_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aa6cff6feccdb2381551a0fc75acd9b1bca020b197764a63cc88475a7ca62ebf [2023-12-03 02:18:07,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 02:18:07,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 02:18:07,405 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 02:18:07,406 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 02:18:07,406 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 02:18:07,407 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-15/array19_alloca.i [2023-12-03 02:18:10,094 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 02:18:10,327 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 02:18:10,332 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/sv-benchmarks/c/termination-15/array19_alloca.i [2023-12-03 02:18:10,344 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/data/8de36c85a/634ddcc220b44278ab87c280ed3ee1e7/FLAGbb96cdcb1 [2023-12-03 02:18:10,357 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/data/8de36c85a/634ddcc220b44278ab87c280ed3ee1e7 [2023-12-03 02:18:10,359 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 02:18:10,360 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 02:18:10,362 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 02:18:10,362 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 02:18:10,366 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 02:18:10,367 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,368 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@365500a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10, skipping insertion in model container [2023-12-03 02:18:10,369 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 02:18:10,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:18:10,734 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 02:18:10,767 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 02:18:10,795 INFO L206 MainTranslator]: Completed translation [2023-12-03 02:18:10,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10 WrapperNode [2023-12-03 02:18:10,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 02:18:10,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 02:18:10,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 02:18:10,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 02:18:10,802 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,813 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,830 INFO L138 Inliner]: procedures = 151, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 51 [2023-12-03 02:18:10,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 02:18:10,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 02:18:10,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 02:18:10,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 02:18:10,839 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,841 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,842 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,846 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,849 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,850 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,852 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 02:18:10,855 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 02:18:10,855 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 02:18:10,855 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 02:18:10,856 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 02:18:10" (1/1) ... [2023-12-03 02:18:10,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 02:18:10,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 02:18:10,884 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 02:18:10,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 02:18:10,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 02:18:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 02:18:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 02:18:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 02:18:10,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 02:18:10,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 02:18:10,984 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 02:18:10,985 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:18:11,100 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:18:11,141 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:18:11,141 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 02:18:11,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:18:11 BoogieIcfgContainer [2023-12-03 02:18:11,143 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:18:11,144 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:18:11,144 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:18:11,152 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:18:11,152 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:18:11" (1/1) ... [2023-12-03 02:18:11,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:18:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:11,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 18 states and 20 transitions. [2023-12-03 02:18:11,205 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-12-03 02:18:11,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 02:18:11,207 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:11,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:11,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:11,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:11,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:11,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-12-03 02:18:11,471 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 02:18:11,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 02:18:11,472 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:11,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:11,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:11,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-12-03 02:18:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-12-03 02:18:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 02:18:11,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:11,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:11,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:11,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:11,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 28 transitions. [2023-12-03 02:18:11,676 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2023-12-03 02:18:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 02:18:11,677 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:11,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:11,793 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:11,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:11,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 24 states and 32 transitions. [2023-12-03 02:18:11,929 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 32 transitions. [2023-12-03 02:18:11,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:18:11,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:11,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:11,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:12,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:12,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:12,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2023-12-03 02:18:12,197 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2023-12-03 02:18:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:18:12,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:12,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:18:12,501 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:18:13,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:18:13,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 33 states and 49 transitions. [2023-12-03 02:18:13,173 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2023-12-03 02:18:13,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 02:18:13,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:18:13,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 02:18:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:18:13,189 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:18:13,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:18:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:18:13,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 02:18:13,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 02:18:13,247 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-12-03 02:18:13,271 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,272 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,273 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,274 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem209 could not be translated [2023-12-03 02:18:13,276 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,277 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem209 could not be translated [2023-12-03 02:18:13,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 02:18:13 ImpRootNode [2023-12-03 02:18:13,281 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 02:18:13,281 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 02:18:13,282 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 02:18:13,282 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 02:18:13,282 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:18:11" (3/4) ... [2023-12-03 02:18:13,283 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 02:18:13,287 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,288 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem209 could not be translated [2023-12-03 02:18:13,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem209 could not be translated [2023-12-03 02:18:13,289 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 02:18:13,317 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ded3af40-fc62-438e-b0e6-51668f19062a/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 02:18:13,317 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 02:18:13,318 INFO L158 Benchmark]: Toolchain (without parser) took 2957.87ms. Allocated memory is still 157.3MB. Free memory was 96.8MB in the beginning and 99.2MB in the end (delta: -2.4MB). Peak memory consumption was 379.9kB. Max. memory is 16.1GB. [2023-12-03 02:18:13,318 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 115.3MB. Free memory is still 85.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:18:13,319 INFO L158 Benchmark]: CACSL2BoogieTranslator took 433.82ms. Allocated memory is still 157.3MB. Free memory was 96.7MB in the beginning and 120.8MB in the end (delta: -24.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-12-03 02:18:13,319 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.55ms. Allocated memory is still 157.3MB. Free memory was 120.8MB in the beginning and 119.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:18:13,320 INFO L158 Benchmark]: Boogie Preprocessor took 22.20ms. Allocated memory is still 157.3MB. Free memory was 119.3MB in the beginning and 118.1MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 02:18:13,320 INFO L158 Benchmark]: RCFGBuilder took 288.54ms. Allocated memory is still 157.3MB. Free memory was 117.7MB in the beginning and 105.6MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 02:18:13,321 INFO L158 Benchmark]: CodeCheck took 2137.02ms. Allocated memory is still 157.3MB. Free memory was 105.6MB in the beginning and 101.3MB in the end (delta: 4.3MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2023-12-03 02:18:13,321 INFO L158 Benchmark]: Witness Printer took 35.99ms. Allocated memory is still 157.3MB. Free memory was 101.3MB in the beginning and 99.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 02:18:13,324 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: 2.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 70 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 81 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 261 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 81 mSolverCounterUnsat, 20 mSDtfsCounter, 261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 309 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s 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 - CounterExampleResult [Line: 375]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND TRUE length < 1 [L367] length = 1 [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=1] [L370] COND TRUE i