./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-15/array09_alloca.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/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_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-15/array09_alloca.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/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_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/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 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:45:22,774 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:45:22,845 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-12-03 04:45:22,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:45:22,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:45:22,871 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:45:22,871 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 04:45:22,872 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 04:45:22,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:45:22,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:45:22,874 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:45:22,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:45:22,875 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:45:22,875 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:45:22,876 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:45:22,876 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:45:22,877 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:45:22,877 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-03 04:45:22,878 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:45:22,878 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:45:22,879 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:45:22,880 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:45:22,880 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:45:22,880 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:45:22,881 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:45:22,881 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:45:22,882 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:45:22,882 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:45:22,883 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 04:45:22,883 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:45:22,883 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:45:22,884 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 04:45:22,884 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_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4bb0671b4b3b34b0008c62cb06f9dde07e56c5dbf3071783b051c4e580038106 [2023-12-03 04:45:23,104 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:45:23,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:45:23,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:45:23,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:45:23,130 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:45:23,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/termination-15/array09_alloca.i [2023-12-03 04:45:25,910 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:45:26,142 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:45:26,143 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/sv-benchmarks/c/termination-15/array09_alloca.i [2023-12-03 04:45:26,155 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/data/ca8d59428/8cef6a61b76c4ea382690e534c603132/FLAGad02c3610 [2023-12-03 04:45:26,172 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/data/ca8d59428/8cef6a61b76c4ea382690e534c603132 [2023-12-03 04:45:26,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:45:26,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:45:26,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:45:26,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:45:26,184 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:45:26,185 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d897e9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26, skipping insertion in model container [2023-12-03 04:45:26,187 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,229 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:45:26,537 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:45:26,548 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:45:26,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:45:26,631 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:45:26,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26 WrapperNode [2023-12-03 04:45:26,632 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:45:26,633 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:45:26,633 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:45:26,633 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:45:26,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,673 INFO L138 Inliner]: procedures = 151, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-12-03 04:45:26,674 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:45:26,675 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:45:26,675 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:45:26,675 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:45:26,684 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,685 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,687 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,687 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,694 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,699 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:45:26,700 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:45:26,700 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:45:26,700 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:45:26,701 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:45:26" (1/1) ... [2023-12-03 04:45:26,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:45:26,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:45:26,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:45:26,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:45:26,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:45:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 04:45:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:45:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:45:26,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:45:26,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:45:26,852 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:45:26,855 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:45:26,976 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:45:27,028 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:45:27,029 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-12-03 04:45:27,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:45:27 BoogieIcfgContainer [2023-12-03 04:45:27,031 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:45:27,031 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:45:27,032 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:45:27,042 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:45:27,042 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:45:27" (1/1) ... [2023-12-03 04:45:27,052 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:45:27,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:27,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-03 04:45:27,109 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-03 04:45:27,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-03 04:45:27,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:27,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:27,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:27,365 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 04:45:27,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:27,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 20 transitions. [2023-12-03 04:45:27,416 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2023-12-03 04:45:27,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 04:45:27,417 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:27,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:27,485 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 04:45:27,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:27,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 17 states and 21 transitions. [2023-12-03 04:45:27,503 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2023-12-03 04:45:27,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-03 04:45:27,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:27,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:27,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:27,572 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 04:45:27,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:27,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2023-12-03 04:45:27,601 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2023-12-03 04:45:27,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 04:45:27,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:27,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:27,746 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 04:45:27,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:27,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2023-12-03 04:45:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2023-12-03 04:45:27,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:45:27,864 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:27,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:27,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:27,956 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 04:45:28,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:28,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 23 states and 33 transitions. [2023-12-03 04:45:28,124 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 33 transitions. [2023-12-03 04:45:28,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:45:28,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:28,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:28,462 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 04:45:29,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:29,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 29 states and 46 transitions. [2023-12-03 04:45:29,111 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 46 transitions. [2023-12-03 04:45:29,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 04:45:29,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:29,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:45:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:45:29,132 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:45:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:45:29,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:45:29,179 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-03 04:45:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-03 04:45:29,197 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2023-12-03 04:45:29,218 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,219 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,220 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,222 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 04:45:29,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,223 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 04:45:29,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 04:45:29 ImpRootNode [2023-12-03 04:45:29,228 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 04:45:29,228 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 04:45:29,229 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 04:45:29,229 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 04:45:29,229 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:45:27" (3/4) ... [2023-12-03 04:45:29,230 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2023-12-03 04:45:29,235 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,235 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,235 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,236 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,236 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 04:45:29,236 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,236 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~mem210 could not be translated [2023-12-03 04:45:29,237 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable #t~malloc206 [2023-12-03 04:45:29,266 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b4e36f-25af-4d4e-84d7-b71160a7ffee/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 04:45:29,266 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 04:45:29,267 INFO L158 Benchmark]: Toolchain (without parser) took 3090.59ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 82.4MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,267 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 111.1MB. Free memory is still 80.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:45:29,268 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.53ms. Allocated memory is still 153.1MB. Free memory was 109.0MB in the beginning and 91.6MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,268 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.47ms. Allocated memory is still 153.1MB. Free memory was 91.6MB in the beginning and 89.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,269 INFO L158 Benchmark]: Boogie Preprocessor took 24.05ms. Allocated memory is still 153.1MB. Free memory was 89.5MB in the beginning and 88.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,269 INFO L158 Benchmark]: RCFGBuilder took 331.17ms. Allocated memory is still 153.1MB. Free memory was 88.1MB in the beginning and 74.8MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,270 INFO L158 Benchmark]: CodeCheck took 2196.39ms. Allocated memory is still 153.1MB. Free memory was 74.8MB in the beginning and 85.5MB in the end (delta: -10.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:45:29,270 INFO L158 Benchmark]: Witness Printer took 38.08ms. Allocated memory is still 153.1MB. Free memory was 85.5MB in the beginning and 82.4MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 04:45:29,273 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: 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, 80 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 262 IncrementalHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 80 mSolverCounterUnsat, 20 mSDtfsCounter, 262 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, 0.8s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 0/6 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 378]: integer overflow possible integer overflow possible We found a FailurePath: [L365] int i, j; [L366] int length = __VERIFIER_nondet_int(); [L367] COND FALSE !(length < 1) [L368] int *arr = __builtin_alloca(length*sizeof(int)); VAL [arr={2:0}, length=1] [L369] COND FALSE !(!arr) [L370] i=0 VAL [arr={2:0}, i=0, length=1] [L370] COND TRUE i -1) [L370] i++ VAL [arr={2:0}, i=1, length=1] [L370] COND FALSE !(i