./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array08_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_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/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_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array08_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/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_f2b55999-8a27-483b-9c65-4a2a24cc4f36/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 ea846d0aba06317f1556d20887ae97ba4fe62b0d875c0f978e04ead015c46479 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:41:38,486 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:41:38,551 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 03:41:38,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:41:38,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:41:38,577 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:41:38,578 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:41:38,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:41:38,579 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:41:38,580 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:41:38,580 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:41:38,581 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:41:38,581 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:41:38,582 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:41:38,582 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:41:38,583 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:41:38,583 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:41:38,584 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 03:41:38,585 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 03:41:38,585 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:41:38,586 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:41:38,587 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:41:38,587 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:41:38,587 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:41:38,588 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:41:38,588 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:38,589 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:41:38,589 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:41:38,590 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:41:38,590 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:41:38,591 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:41:38,591 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:41:38,591 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_f2b55999-8a27-483b-9c65-4a2a24cc4f36/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea846d0aba06317f1556d20887ae97ba4fe62b0d875c0f978e04ead015c46479 [2023-12-03 03:41:38,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:41:38,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:41:38,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:41:38,819 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:41:38,819 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:41:38,821 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-15/array08_alloca.i [2023-12-03 03:41:41,648 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:41:41,843 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:41:41,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/sv-benchmarks/c/termination-15/array08_alloca.i [2023-12-03 03:41:41,855 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/data/25d864b01/2f5674045e4542a68d57bfa4fa460e36/FLAG5ade4f529 [2023-12-03 03:41:41,868 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/data/25d864b01/2f5674045e4542a68d57bfa4fa460e36 [2023-12-03 03:41:41,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:41:41,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:41:41,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:41,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:41:41,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:41:41,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:41" (1/1) ... [2023-12-03 03:41:41,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7156459a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:41, skipping insertion in model container [2023-12-03 03:41:41,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:41:41" (1/1) ... [2023-12-03 03:41:41,915 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:41:42,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:42,208 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:41:42,255 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:41:42,296 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:41:42,297 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42 WrapperNode [2023-12-03 03:41:42,297 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:41:42,298 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:42,298 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:41:42,299 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:41:42,307 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,321 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,346 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-12-03 03:41:42,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:41:42,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:41:42,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:41:42,347 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:41:42,358 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,367 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,370 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,372 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,373 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,375 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:41:42,377 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:41:42,377 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:41:42,377 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:41:42,378 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:41:42,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:41:42,412 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:41:42,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:41:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 03:41:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 03:41:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 03:41:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 03:41:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:41:42,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:41:42,533 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:41:42,535 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:41:42,674 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:41:42,723 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:41:42,723 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 03:41:42,724 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:42 BoogieIcfgContainer [2023-12-03 03:41:42,725 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:41:42,725 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:41:42,725 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:41:42,734 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:41:42,734 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:42" (1/1) ... [2023-12-03 03:41:42,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:41:42,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:42,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-03 03:41:42,785 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-03 03:41:42,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 03:41:42,786 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:42,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:42,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:43,034 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 03:41:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-12-03 03:41:43,094 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-12-03 03:41:43,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 03:41:43,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:43,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:43,181 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 03:41:43,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:43,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-03 03:41:43,202 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-03 03:41:43,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 03:41:43,203 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:43,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:43,288 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 03:41:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 03:41:43,321 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 03:41:43,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 03:41:43,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:43,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:43,465 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 03:41:43,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:43,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-12-03 03:41:43,580 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-12-03 03:41:43,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:41:43,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:43,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:43,693 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 03:41:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:43,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2023-12-03 03:41:43,871 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2023-12-03 03:41:43,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 03:41:43,871 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:43,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:43,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:44,246 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 03:41:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:44,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2023-12-03 03:41:44,930 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-12-03 03:41:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 03:41:44,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:44,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:45,232 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 03:41:46,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 32 states and 55 transitions. [2023-12-03 03:41:46,007 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 55 transitions. [2023-12-03 03:41:46,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 03:41:46,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:46,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:46,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:46,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 25 states and 41 transitions. [2023-12-03 03:41:46,127 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 41 transitions. [2023-12-03 03:41:46,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:41:46,128 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:46,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:46,270 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:46,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:46,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 48 transitions. [2023-12-03 03:41:46,524 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 48 transitions. [2023-12-03 03:41:46,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:41:46,525 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:46,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:46,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:48,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 28 states and 47 transitions. [2023-12-03 03:41:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2023-12-03 03:41:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 03:41:48,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:48,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:49,309 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 03:41:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:51,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 33 states and 59 transitions. [2023-12-03 03:41:51,881 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 59 transitions. [2023-12-03 03:41:51,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:41:51,882 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:51,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:52,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:53,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:53,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 33 states and 58 transitions. [2023-12-03 03:41:53,089 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 58 transitions. [2023-12-03 03:41:53,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:41:53,090 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:53,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:53,290 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:53,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:53,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 66 transitions. [2023-12-03 03:41:53,643 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 66 transitions. [2023-12-03 03:41:53,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:41:53,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:53,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:54,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:55,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:55,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 36 states and 65 transitions. [2023-12-03 03:41:55,033 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 65 transitions. [2023-12-03 03:41:55,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 03:41:55,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:55,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:41:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:41:56,333 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:41:59,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:41:59,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 40 states and 81 transitions. [2023-12-03 03:41:59,989 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 81 transitions. [2023-12-03 03:41:59,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:41:59,990 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:41:59,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:00,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:42:00,664 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 03:42:01,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:42:01,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 40 states and 80 transitions. [2023-12-03 03:42:01,506 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 80 transitions. [2023-12-03 03:42:01,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-03 03:42:01,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:42:01,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:42:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:42:01,524 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:42:01,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:42:01,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:42:01,583 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 03:42:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 03:42:01,607 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2023-12-03 03:42:01,632 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,633 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,634 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,635 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,637 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,643 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:42:01 ImpRootNode [2023-12-03 03:42:01,643 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:42:01,644 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:42:01,644 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:42:01,644 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:42:01,645 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:41:42" (3/4) ... [2023-12-03 03:42:01,646 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 03:42:01,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,652 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,653 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,653 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,654 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 03:42:01,655 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 03:42:01,692 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2b55999-8a27-483b-9c65-4a2a24cc4f36/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:42:01,693 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:42:01,694 INFO L158 Benchmark]: Toolchain (without parser) took 19822.37ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 133.9MB in the beginning and 205.4MB in the end (delta: -71.5MB). Peak memory consumption was 57.4MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,694 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 117.4MB. Free memory is still 73.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:42:01,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 425.37ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 116.2MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.25ms. Allocated memory is still 172.0MB. Free memory was 116.2MB in the beginning and 114.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,696 INFO L158 Benchmark]: Boogie Preprocessor took 28.58ms. Allocated memory is still 172.0MB. Free memory was 114.6MB in the beginning and 113.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,697 INFO L158 Benchmark]: RCFGBuilder took 347.94ms. Allocated memory is still 172.0MB. Free memory was 113.0MB in the beginning and 99.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,697 INFO L158 Benchmark]: CodeCheck took 18918.08ms. Allocated memory was 172.0MB in the beginning and 299.9MB in the end (delta: 127.9MB). Free memory was 99.5MB in the beginning and 207.5MB in the end (delta: -108.0MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,698 INFO L158 Benchmark]: Witness Printer took 48.89ms. Allocated memory is still 299.9MB. Free memory was 207.5MB in the beginning and 205.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:42:01,701 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 14 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 18.9s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 562 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 383 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 4.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 775 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2912 IncrementalHoareTripleChecker+Invalid, 3687 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 775 mSolverCounterUnsat, 60 mSDtfsCounter, 2912 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1555 GetRequests, 1268 SyntacticMatches, 61 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23329 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 1426 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 2/85 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=2] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=2] [L370] COND TRUE i