./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn4f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7849780e572f4b715fd4a0599e2552ba9e578b3aff0bf5f111ebb8575b54953d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 21:42:20,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 21:42:20,898 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 21:42:20,903 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 21:42:20,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 21:42:20,923 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 21:42:20,923 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 21:42:20,923 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 21:42:20,924 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 21:42:20,924 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 21:42:20,924 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 21:42:20,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 21:42:20,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 21:42:20,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 21:42:20,924 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 21:42:20,925 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 21:42:20,925 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 21:42:20,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:42:20,926 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 21:42:20,926 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7849780e572f4b715fd4a0599e2552ba9e578b3aff0bf5f111ebb8575b54953d [2024-12-05 21:42:21,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 21:42:21,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 21:42:21,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 21:42:21,177 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 21:42:21,178 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 21:42:21,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-fpi/ifeqn4f.c [2024-12-05 21:42:23,809 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/data/ccb8a0cf7/ccabcc999e104cfdbad1a29f2e893cce/FLAG8c06738fd [2024-12-05 21:42:23,990 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 21:42:23,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/sv-benchmarks/c/array-fpi/ifeqn4f.c [2024-12-05 21:42:23,996 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/data/ccb8a0cf7/ccabcc999e104cfdbad1a29f2e893cce/FLAG8c06738fd [2024-12-05 21:42:24,012 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/data/ccb8a0cf7/ccabcc999e104cfdbad1a29f2e893cce [2024-12-05 21:42:24,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 21:42:24,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 21:42:24,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 21:42:24,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 21:42:24,020 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 21:42:24,020 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,021 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c19149d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24, skipping insertion in model container [2024-12-05 21:42:24,021 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,034 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 21:42:24,165 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/sv-benchmarks/c/array-fpi/ifeqn4f.c[590,603] [2024-12-05 21:42:24,184 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:42:24,192 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 21:42:24,202 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/sv-benchmarks/c/array-fpi/ifeqn4f.c[590,603] [2024-12-05 21:42:24,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 21:42:24,222 INFO L204 MainTranslator]: Completed translation [2024-12-05 21:42:24,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24 WrapperNode [2024-12-05 21:42:24,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 21:42:24,223 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 21:42:24,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 21:42:24,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 21:42:24,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,235 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,249 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-12-05 21:42:24,250 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 21:42:24,250 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 21:42:24,250 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 21:42:24,250 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 21:42:24,255 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,257 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,257 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,262 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,262 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,266 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,268 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,269 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 21:42:24,270 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 21:42:24,271 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 21:42:24,271 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 21:42:24,271 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 21:42:24,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 21:42:24,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 21:42:24,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 21:42:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 21:42:24,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 21:42:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-05 21:42:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-05 21:42:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 21:42:24,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 21:42:24,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-05 21:42:24,368 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 21:42:24,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 21:42:24,503 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-05 21:42:24,503 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 21:42:24,556 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 21:42:24,557 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-05 21:42:24,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:42:24 BoogieIcfgContainer [2024-12-05 21:42:24,557 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 21:42:24,558 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 21:42:24,558 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 21:42:24,567 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 21:42:24,567 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:42:24" (1/1) ... [2024-12-05 21:42:24,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 21:42:24,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:24,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2024-12-05 21:42:24,619 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2024-12-05 21:42:24,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-05 21:42:24,622 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:24,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:24,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:42:24,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 21:42:24,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:24,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2024-12-05 21:42:24,888 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2024-12-05 21:42:24,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-05 21:42:24,889 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:24,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:24,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:42:24,979 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 21:42:25,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:25,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2024-12-05 21:42:25,056 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2024-12-05 21:42:25,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-05 21:42:25,056 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:25,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:25,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:42:25,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:42:25,138 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 21:42:25,141 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 21:42:25,209 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-05 21:42:25,274 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 21:42:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2024-12-05 21:42:25,644 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2024-12-05 21:42:25,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-05 21:42:25,645 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:25,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:25,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:42:25,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-05 21:42:26,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:26,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 22 states and 38 transitions. [2024-12-05 21:42:26,619 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2024-12-05 21:42:26,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-05 21:42:26,620 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:26,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:26,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 21:42:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-05 21:42:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 21:42:27,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2024-12-05 21:42:27,318 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2024-12-05 21:42:27,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-05 21:42:27,319 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 21:42:27,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 21:42:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 21:42:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:42:27,401 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-05 21:42:27,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-05 21:42:27,444 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 6 iterations. [2024-12-05 21:42:27,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 09:42:27 ImpRootNode [2024-12-05 21:42:27,471 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 21:42:27,471 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 21:42:27,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 21:42:27,471 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 21:42:27,472 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 09:42:24" (3/4) ... [2024-12-05 21:42:27,473 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-05 21:42:27,513 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 22. [2024-12-05 21:42:27,567 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 21:42:27,568 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a2769d9-4fde-4299-9f0d-7ec615fec18c/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 21:42:27,568 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 21:42:27,569 INFO L158 Benchmark]: Toolchain (without parser) took 3552.99ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 77.4MB in the end (delta: 41.7MB). Peak memory consumption was 38.0MB. Max. memory is 16.1GB. [2024-12-05 21:42:27,569 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 142.6MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:42:27,569 INFO L158 Benchmark]: CACSL2BoogieTranslator took 205.92ms. Allocated memory is still 142.6MB. Free memory was 119.1MB in the beginning and 107.7MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 21:42:27,570 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.67ms. Allocated memory is still 142.6MB. Free memory was 107.5MB in the beginning and 106.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:42:27,570 INFO L158 Benchmark]: Boogie Preprocessor took 19.38ms. Allocated memory is still 142.6MB. Free memory was 106.3MB in the beginning and 105.3MB in the end (delta: 957.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:42:27,570 INFO L158 Benchmark]: RCFGBuilder took 286.81ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 90.3MB in the end (delta: 15.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 21:42:27,570 INFO L158 Benchmark]: CodeCheck took 2912.76ms. Allocated memory is still 142.6MB. Free memory was 90.3MB in the beginning and 82.2MB in the end (delta: 8.0MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2024-12-05 21:42:27,571 INFO L158 Benchmark]: Witness Printer took 96.85ms. Allocated memory is still 142.6MB. Free memory was 82.2MB in the beginning and 77.4MB in the end (delta: 4.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 21:42:27,572 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 135 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 359 IncrementalHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 25 mSDtfsCounter, 359 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 470 GetRequests, 387 SyntacticMatches, 5 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2605 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 137 SizeOfPredicates, 4 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 6/13 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=2, a={-2:0}, b={-1:0}, i=0] [L31] COND TRUE i