./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi --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 32bit --witnessprinter.graph.data.programhash 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:52:54,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:52:54,811 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 22:52:54,822 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:52:54,823 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:52:54,866 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:52:54,867 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:52:54,867 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:52:54,869 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:52:54,876 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:52:54,876 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:52:54,877 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:52:54,877 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:52:54,879 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:52:54,880 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:52:54,880 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:52:54,881 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:52:54,881 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:52:54,882 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:52:54,882 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 22:52:54,883 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 22:52:54,883 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:52:54,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:52:54,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:52:54,885 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:52:54,885 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:52:54,886 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:52:54,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:52:54,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:54,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:52:54,889 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:52:54,889 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:52:54,889 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:52:54,890 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:52:54,890 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:52:54,890 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_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fa3b5fd31b0165adcc8931bdb36ef94241c9d1c36f2e335867de97d47f976fb [2023-11-24 22:52:55,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:52:55,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:52:55,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:52:55,223 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:52:55,223 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:52:55,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2023-11-24 22:52:58,451 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:52:58,634 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:52:58,635 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/sv-benchmarks/c/ldv-regression/test_while_int.c_1.i [2023-11-24 22:52:58,643 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/data/68601bbba/a5da657ae379409b9b7eb79e50f46cfc/FLAGd7fae4a28 [2023-11-24 22:52:58,661 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/data/68601bbba/a5da657ae379409b9b7eb79e50f46cfc [2023-11-24 22:52:58,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:52:58,669 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:52:58,671 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:58,671 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:52:58,678 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:52:58,678 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@101361bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58, skipping insertion in model container [2023-11-24 22:52:58,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,701 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:52:58,852 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:58,862 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:52:58,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:52:58,887 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:52:58,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58 WrapperNode [2023-11-24 22:52:58,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:52:58,889 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:58,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:52:58,890 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:52:58,898 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,921 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 27 [2023-11-24 22:52:58,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:52:58,922 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:52:58,922 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:52:58,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:52:58,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,932 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,934 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,938 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,939 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,940 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,941 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:52:58,943 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:52:58,943 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:52:58,943 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:52:58,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:52:58" (1/1) ... [2023-11-24 22:52:58,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:52:58,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:52:58,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:52:58,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:52:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:52:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:52:59,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:52:59,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:52:59,089 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:52:59,091 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:52:59,215 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:52:59,254 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:52:59,254 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 22:52:59,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:59 BoogieIcfgContainer [2023-11-24 22:52:59,256 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:52:59,258 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:52:59,258 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:52:59,268 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:52:59,268 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:59" (1/1) ... [2023-11-24 22:52:59,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:52:59,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2023-11-24 22:52:59,336 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2023-11-24 22:52:59,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 22:52:59,338 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:59,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2023-11-24 22:52:59,628 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2023-11-24 22:52:59,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-24 22:52:59,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:52:59,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:52:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:52:59,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2023-11-24 22:52:59,906 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2023-11-24 22:52:59,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 22:52:59,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:52:59,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:52:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:53:00,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2023-11-24 22:53:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2023-11-24 22:53:00,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 22:53:00,089 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:53:00,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:53:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:53:00,207 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 22:53:00,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:53:00,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2023-11-24 22:53:00,285 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2023-11-24 22:53:00,286 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 22:53:00,286 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2023-11-24 22:53:00,297 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-24 22:53:00,352 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2023-11-24 22:53:00,359 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:53:00 ImpRootNode [2023-11-24 22:53:00,359 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:53:00,360 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:53:00,360 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:53:00,360 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:53:00,361 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:52:59" (3/4) ... [2023-11-24 22:53:00,364 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 22:53:00,372 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2023-11-24 22:53:00,373 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 22:53:00,373 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 22:53:00,373 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 22:53:00,474 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 22:53:00,475 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 22:53:00,475 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:53:00,476 INFO L158 Benchmark]: Toolchain (without parser) took 1806.67ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 91.7MB in the beginning and 109.4MB in the end (delta: -17.7MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-11-24 22:53:00,476 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:00,477 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.76ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 81.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-24 22:53:00,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.57ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:53:00,478 INFO L158 Benchmark]: Boogie Preprocessor took 19.35ms. Allocated memory is still 138.4MB. Free memory was 80.0MB in the beginning and 79.2MB in the end (delta: 825.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:00,479 INFO L158 Benchmark]: RCFGBuilder took 313.88ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 69.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:53:00,479 INFO L158 Benchmark]: CodeCheck took 1101.50ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 113.9MB in the end (delta: -44.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:53:00,480 INFO L158 Benchmark]: Witness Printer took 115.07ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 109.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 22:53:00,483 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, 7 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 0 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 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 - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 16]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (0 <= i) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 138.4MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.76ms. Allocated memory is still 138.4MB. Free memory was 91.2MB in the beginning and 81.2MB in the end (delta: 10.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.57ms. Allocated memory is still 138.4MB. Free memory was 81.2MB in the beginning and 80.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.35ms. Allocated memory is still 138.4MB. Free memory was 80.0MB in the beginning and 79.2MB in the end (delta: 825.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 313.88ms. Allocated memory is still 138.4MB. Free memory was 79.1MB in the beginning and 69.1MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 1101.50ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 69.1MB in the beginning and 113.9MB in the end (delta: -44.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 115.07ms. Allocated memory is still 169.9MB. Free memory was 113.6MB in the beginning and 109.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 22:53:00,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cddc6608-895b-4889-a635-613c9f966107/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE