./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/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_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/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 32bit --witnessprinter.graph.data.programhash 2ab4edcca5b9462828f3f8508070d4176bb26ab0f9320b15e5816d52ba5f91eb --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:38:06,720 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:38:06,789 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-12-02 21:38:06,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:38:06,795 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:38:06,827 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:38:06,828 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:38:06,829 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:38:06,830 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:38:06,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:38:06,831 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:38:06,831 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:38:06,832 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:38:06,833 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:38:06,833 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:38:06,834 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:38:06,834 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:38:06,834 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:38:06,835 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:38:06,835 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-12-02 21:38:06,836 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:38:06,837 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:38:06,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:38:06,837 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:38:06,838 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:38:06,838 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:38:06,839 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:38:06,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:38:06,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:38:06,840 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:38:06,840 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:38:06,841 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:38:06,841 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:38:06,841 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:38:06,841 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:38:06,842 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_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ab4edcca5b9462828f3f8508070d4176bb26ab0f9320b15e5816d52ba5f91eb [2023-12-02 21:38:07,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:38:07,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:38:07,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:38:07,106 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:38:07,107 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:38:07,108 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i [2023-12-02 21:38:09,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:38:10,037 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:38:10,038 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/sv-benchmarks/c/unsignedintegeroverflow-sas23/bilinear_interpolation.i [2023-12-02 21:38:10,046 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/data/1cec9f2d3/c149be40ecd14046bc7c509535b8175f/FLAGb7ec7361b [2023-12-02 21:38:10,058 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/data/1cec9f2d3/c149be40ecd14046bc7c509535b8175f [2023-12-02 21:38:10,061 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:38:10,062 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:38:10,063 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:38:10,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:38:10,068 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:38:10,069 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,070 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73052a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10, skipping insertion in model container [2023-12-02 21:38:10,071 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,091 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:38:10,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:38:10,245 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:38:10,268 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:38:10,280 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:38:10,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10 WrapperNode [2023-12-02 21:38:10,280 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:38:10,281 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:38:10,281 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:38:10,281 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:38:10,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,293 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,321 INFO L138 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2023-12-02 21:38:10,322 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:38:10,322 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:38:10,323 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:38:10,323 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:38:10,331 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,332 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,334 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,334 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,342 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:38:10,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:38:10,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:38:10,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:38:10,348 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:38:10,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:38:10,374 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:38:10,376 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:38:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:38:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:38:10,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:38:10,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:38:10,467 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:38:10,469 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:38:10,708 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:38:10,787 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:38:10,788 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-12-02 21:38:10,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:38:10 BoogieIcfgContainer [2023-12-02 21:38:10,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:38:10,790 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:38:10,791 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:38:10,799 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:38:10,799 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:38:10" (1/1) ... [2023-12-02 21:38:10,806 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:38:10,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:10,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-12-02 21:38:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-12-02 21:38:10,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-12-02 21:38:10,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:10,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:10,964 INFO L262 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:10,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:12,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-02 21:38:12,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:12,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2023-12-02 21:38:12,902 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2023-12-02 21:38:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-12-02 21:38:12,903 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:12,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:12,946 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:12,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:12,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:12,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2023-12-02 21:38:12,952 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2023-12-02 21:38:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-12-02 21:38:12,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:12,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:12,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:12,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:12,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-12-02 21:38:12,996 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-12-02 21:38:12,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:38:12,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:12,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:13,031 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:13,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:13,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:13,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:13,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2023-12-02 21:38:13,037 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2023-12-02 21:38:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:38:13,038 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:13,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:13,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:13,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:13,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:13,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:13,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2023-12-02 21:38:13,077 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2023-12-02 21:38:13,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:38:13,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:38:13,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:38:13,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:38:13,111 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:38:13,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:38:13,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:38:13,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:38:13,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2023-12-02 21:38:13,117 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2023-12-02 21:38:13,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:38:13,118 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-02 21:38:13,125 INFO L751 CodeCheckObserver]: All specifications hold 6 specifications checked. All of them hold [2023-12-02 21:38:13,140 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:38:13,144 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:38:13 ImpRootNode [2023-12-02 21:38:13,144 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:38:13,144 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:38:13,144 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:38:13,145 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:38:13,145 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:38:10" (3/4) ... [2023-12-02 21:38:13,147 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:38:13,155 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-02 21:38:13,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 21:38:13,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 21:38:13,156 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:38:13,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:38:13,247 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:38:13,247 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:38:13,248 INFO L158 Benchmark]: Toolchain (without parser) took 3186.15ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 75.2MB in the end (delta: 57.1MB). Peak memory consumption was 54.3MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,248 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:38:13,249 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.52ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 121.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,249 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.71ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 119.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,250 INFO L158 Benchmark]: Boogie Preprocessor took 23.83ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,250 INFO L158 Benchmark]: RCFGBuilder took 442.58ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 116.6MB in the end (delta: 1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,251 INFO L158 Benchmark]: CodeCheck took 2353.56ms. Allocated memory is still 163.6MB. Free memory was 115.8MB in the beginning and 80.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,251 INFO L158 Benchmark]: Witness Printer took 102.97ms. Allocated memory is still 163.6MB. Free memory was 80.2MB in the beginning and 75.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:38:13,253 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, 16 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 81 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 33 SdHoareTripleChecker+Invalid, 11.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 33 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 186 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 27 SizeOfPredicates, 0 NumberOfNonLiveVariables, 303 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 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: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 38]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 125.8MB. Free memory is still 98.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.52ms. Allocated memory is still 163.6MB. Free memory was 132.3MB in the beginning and 121.2MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.71ms. Allocated memory is still 163.6MB. Free memory was 121.2MB in the beginning and 119.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.83ms. Allocated memory is still 163.6MB. Free memory was 119.1MB in the beginning and 117.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 442.58ms. Allocated memory is still 163.6MB. Free memory was 117.8MB in the beginning and 116.6MB in the end (delta: 1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2353.56ms. Allocated memory is still 163.6MB. Free memory was 115.8MB in the beginning and 80.2MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 102.97ms. Allocated memory is still 163.6MB. Free memory was 80.2MB in the beginning and 75.2MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-02 21:38:13,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_02737fa3-11a8-4988-a1f0-5bf14cdb85b5/bin/ukojak-verify-Qdu7aM0XO9/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