./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3 --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 6518e3283e254ed16f96ad802609fc9f9c972959c7f4631066de203a846c5b0d --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-25 05:14:05,706 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-25 05:14:05,812 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-25 05:14:05,818 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-25 05:14:05,818 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-25 05:14:05,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-25 05:14:05,854 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-25 05:14:05,854 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-25 05:14:05,856 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-25 05:14:05,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-25 05:14:05,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-25 05:14:05,858 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-25 05:14:05,858 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-25 05:14:05,858 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-25 05:14:05,859 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-25 05:14:05,859 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-25 05:14:05,859 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-25 05:14:05,859 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-25 05:14:05,859 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-25 05:14:05,860 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-25 05:14:05,860 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-25 05:14:05,861 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-25 05:14:05,861 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-25 05:14:05,861 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-25 05:14:05,861 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:05,861 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-25 05:14:05,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-25 05:14:05,862 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-25 05:14:05,863 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-25 05:14:05,863 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-25 05:14:05,863 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_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3 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 -> 6518e3283e254ed16f96ad802609fc9f9c972959c7f4631066de203a846c5b0d [2024-11-25 05:14:06,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-25 05:14:06,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-25 05:14:06,245 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-25 05:14:06,246 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-25 05:14:06,247 INFO L274 PluginConnector]: CDTParser initialized [2024-11-25 05:14:06,248 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c [2024-11-25 05:14:09,326 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/data/8ac74c943/d4eb82aa56ca4350bf77d00f0dc6686c/FLAGdb977a1fe [2024-11-25 05:14:09,578 INFO L384 CDTParser]: Found 1 translation units. [2024-11-25 05:14:09,578 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/sv-benchmarks/c/nla-digbench-scaling/lcm2_unwindbound5.c [2024-11-25 05:14:09,586 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/data/8ac74c943/d4eb82aa56ca4350bf77d00f0dc6686c/FLAGdb977a1fe [2024-11-25 05:14:09,607 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/data/8ac74c943/d4eb82aa56ca4350bf77d00f0dc6686c [2024-11-25 05:14:09,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-25 05:14:09,611 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-25 05:14:09,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:09,613 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-25 05:14:09,617 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-25 05:14:09,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e0f80e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09, skipping insertion in model container [2024-11-25 05:14:09,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,636 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-25 05:14:09,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:09,865 INFO L200 MainTranslator]: Completed pre-run [2024-11-25 05:14:09,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-25 05:14:09,900 INFO L204 MainTranslator]: Completed translation [2024-11-25 05:14:09,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09 WrapperNode [2024-11-25 05:14:09,901 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-25 05:14:09,902 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:09,902 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-25 05:14:09,902 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-25 05:14:09,910 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,938 INFO L138 Inliner]: procedures = 14, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 63 [2024-11-25 05:14:09,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-25 05:14:09,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-25 05:14:09,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-25 05:14:09,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-25 05:14:09,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,955 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,955 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,963 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,964 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,972 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,973 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,974 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-25 05:14:09,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-25 05:14:09,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-25 05:14:09,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-25 05:14:09,982 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:14:09" (1/1) ... [2024-11-25 05:14:09,995 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-25 05:14:10,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-25 05:14:10,037 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-25 05:14:10,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-25 05:14:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-25 05:14:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-25 05:14:10,075 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-25 05:14:10,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-25 05:14:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-25 05:14:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-25 05:14:10,076 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-25 05:14:10,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-25 05:14:10,146 INFO L234 CfgBuilder]: Building ICFG [2024-11-25 05:14:10,148 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-25 05:14:10,412 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-25 05:14:10,412 INFO L283 CfgBuilder]: Performing block encoding [2024-11-25 05:14:10,510 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-25 05:14:10,512 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-25 05:14:10,513 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:10 BoogieIcfgContainer [2024-11-25 05:14:10,513 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-25 05:14:10,514 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-25 05:14:10,515 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-25 05:14:10,528 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-25 05:14:10,528 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:10" (1/1) ... [2024-11-25 05:14:10,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-25 05:14:10,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:10,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2024-11-25 05:14:10,602 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2024-11-25 05:14:10,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-25 05:14:10,608 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:10,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:11,006 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 05:14:11,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 23 states and 29 transitions. [2024-11-25 05:14:11,122 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2024-11-25 05:14:11,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-25 05:14:11,122 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:11,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:11,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 05:14:11,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:11,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 24 states and 30 transitions. [2024-11-25 05:14:11,309 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2024-11-25 05:14:11,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-25 05:14:11,310 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:11,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 05:14:11,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:11,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 38 transitions. [2024-11-25 05:14:11,821 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2024-11-25 05:14:11,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-25 05:14:11,822 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:11,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:12,037 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-25 05:14:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:12,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 34 states and 46 transitions. [2024-11-25 05:14:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-25 05:14:12,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-25 05:14:12,389 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:12,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:12,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:12,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-25 05:14:12,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:12,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 29 states and 36 transitions. [2024-11-25 05:14:12,909 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2024-11-25 05:14:12,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-25 05:14:12,911 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:12,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:12,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-25 05:14:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 35 states and 45 transitions. [2024-11-25 05:14:13,506 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2024-11-25 05:14:13,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-25 05:14:13,507 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:13,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:13,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:13,825 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-25 05:14:14,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:14,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 41 states and 54 transitions. [2024-11-25 05:14:14,245 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2024-11-25 05:14:14,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-25 05:14:14,246 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:14,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:14,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-25 05:14:15,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:15,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 47 states and 63 transitions. [2024-11-25 05:14:15,054 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2024-11-25 05:14:15,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-25 05:14:15,055 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:15,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-25 05:14:15,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:15,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 53 states and 72 transitions. [2024-11-25 05:14:15,951 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 72 transitions. [2024-11-25 05:14:15,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-25 05:14:15,952 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-25 05:14:15,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-25 05:14:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-25 05:14:16,478 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 84 proven. 24 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-25 05:14:16,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-25 05:14:16,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 47 states and 63 transitions. [2024-11-25 05:14:16,690 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2024-11-25 05:14:16,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-25 05:14:16,691 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2024-11-25 05:14:16,699 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-25 05:14:16,862 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) the Hoare annotation is: true [2024-11-25 05:14:16,862 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-25 05:14:16,862 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: true [2024-11-25 05:14:16,862 INFO L77 FloydHoareUtils]: At program point L25(line 25) the Hoare annotation is: (= ~counter~0 0) [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point L25-1(line 25) the Hoare annotation is: true [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point L42-2(lines 36 49) the Hoare annotation is: true [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point L36-1(line 36) the Hoare annotation is: true [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point L36-2(line 36) the Hoare annotation is: true [2024-11-25 05:14:16,863 INFO L77 FloydHoareUtils]: At program point L36-3(lines 36 49) the Hoare annotation is: (or (< 4 |ULTIMATE.start_main_#t~post6#1|) (<= ~counter~0 1) (and (not (= |ULTIMATE.start_main_#t~post6#1| 0)) (<= ~counter~0 5))) [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point L36-4(lines 36 49) the Hoare annotation is: (<= ~counter~0 5) [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 36) the Hoare annotation is: true [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point L36-6(lines 36 49) the Hoare annotation is: true [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point L28(line 28) the Hoare annotation is: true [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point L26(line 26) the Hoare annotation is: true [2024-11-25 05:14:16,864 INFO L77 FloydHoareUtils]: At program point L51(line 51) the Hoare annotation is: true [2024-11-25 05:14:16,865 INFO L77 FloydHoareUtils]: At program point L37(lines 36 49) the Hoare annotation is: true [2024-11-25 05:14:16,865 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 8 10) the Hoare annotation is: true [2024-11-25 05:14:16,865 INFO L77 FloydHoareUtils]: At program point assume_abort_if_notEXIT(lines 8 10) the Hoare annotation is: true [2024-11-25 05:14:16,865 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 11 17) the Hoare annotation is: true [2024-11-25 05:14:16,865 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 11 17) the Hoare annotation is: true [2024-11-25 05:14:16,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 25.11 05:14:16 ImpRootNode [2024-11-25 05:14:16,880 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-25 05:14:16,881 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-25 05:14:16,881 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-25 05:14:16,882 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-25 05:14:16,882 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:14:10" (3/4) ... [2024-11-25 05:14:16,885 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-25 05:14:16,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-25 05:14:16,888 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-25 05:14:16,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-25 05:14:16,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-25 05:14:16,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-25 05:14:16,892 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 05:14:16,893 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-25 05:14:16,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-25 05:14:16,990 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-25 05:14:16,990 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-25 05:14:16,994 INFO L158 Benchmark]: Toolchain (without parser) took 7380.08ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 65.1MB in the end (delta: 26.8MB). Peak memory consumption was 29.5MB. Max. memory is 16.1GB. [2024-11-25 05:14:16,994 INFO L158 Benchmark]: CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:16,995 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.72ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:16,995 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.71ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:16,995 INFO L158 Benchmark]: Boogie Preprocessor took 39.37ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 79.0MB in the end (delta: 624.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:16,996 INFO L158 Benchmark]: RCFGBuilder took 533.27ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 65.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-25 05:14:16,998 INFO L158 Benchmark]: CodeCheck took 6366.25ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 70.0MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-25 05:14:16,998 INFO L158 Benchmark]: Witness Printer took 109.24ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 65.1MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-25 05:14:17,001 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 3 procedures, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 623 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 243 mSDsluCounter, 466 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 78 mSDsCounter, 249 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1090 IncrementalHoareTripleChecker+Invalid, 1339 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 249 mSolverCounterUnsat, 388 mSDtfsCounter, 1090 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2519 GetRequests, 2322 SyntacticMatches, 111 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3983 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 359 NumberOfCodeBlocks, 359 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 349 ConstructedInterpolants, 0 QuantifiedInterpolants, 813 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 280/477 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 - PositiveResult [Line: 36]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 36]: 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 - ProcedureContractResult [Line: 8]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (counter == \old(counter)) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (counter == \old(counter)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69ms. Allocated memory is still 83.9MB. Free memory is still 40.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.72ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 80.8MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.71ms. Allocated memory is still 117.4MB. Free memory was 80.8MB in the beginning and 79.6MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 39.37ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 79.0MB in the end (delta: 624.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 533.27ms. Allocated memory is still 117.4MB. Free memory was 78.9MB in the beginning and 65.8MB in the end (delta: 13.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 6366.25ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 70.0MB in the end (delta: -4.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 109.24ms. Allocated memory is still 117.4MB. Free memory was 70.0MB in the beginning and 65.1MB in the end (delta: 4.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-25 05:14:17,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b75006c-0b73-43e9-9f1f-f83e9ac70e9d/bin/ukojak-verify-ENZ3QT5qd3/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