./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --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_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/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_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/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_1eb72787-00e5-4338-bb34-c36ed980469d/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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:01:41,062 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:01:41,134 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-24 23:01:41,140 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:01:41,141 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:01:41,166 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:01:41,167 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:01:41,168 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:01:41,169 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:01:41,169 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:01:41,170 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:01:41,171 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:01:41,172 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:01:41,173 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:01:41,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:01:41,174 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:01:41,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:01:41,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:01:41,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:01:41,177 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-24 23:01:41,178 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 23:01:41,179 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:01:41,179 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:01:41,180 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:01:41,181 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:01:41,182 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:01:41,182 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:01:41,183 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:01:41,184 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:01:41,185 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:01:41,185 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:01:41,186 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:01:41,187 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:01:41,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:01:41,188 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:01:41,188 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_1eb72787-00e5-4338-bb34-c36ed980469d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2023-11-24 23:01:41,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:01:41,510 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:01:41,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:01:41,514 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:01:41,514 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:01:41,516 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-11-24 23:01:44,675 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:01:44,975 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:01:44,992 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2023-11-24 23:01:45,005 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/data/4dfc3e8c3/5779529b3f5e4309886e64126eb0720b/FLAG9a459526f [2023-11-24 23:01:45,022 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/data/4dfc3e8c3/5779529b3f5e4309886e64126eb0720b [2023-11-24 23:01:45,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:01:45,030 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:01:45,035 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:01:45,035 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:01:45,041 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:01:45,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,046 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2230d43f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45, skipping insertion in model container [2023-11-24 23:01:45,046 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,113 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:01:45,375 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:01:45,386 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:01:45,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:01:45,491 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:01:45,491 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45 WrapperNode [2023-11-24 23:01:45,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:01:45,493 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:01:45,493 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:01:45,493 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:01:45,501 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,513 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,561 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 546 [2023-11-24 23:01:45,561 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:01:45,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:01:45,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:01:45,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:01:45,575 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,575 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,602 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,605 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,609 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:01:45,615 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:01:45,615 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:01:45,615 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:01:45,616 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:01:45" (1/1) ... [2023-11-24 23:01:45,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:01:45,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:01:45,682 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:01:45,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:01:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:01:45,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:01:45,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:01:45,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:01:45,879 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:01:45,883 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:01:45,916 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:01:46,663 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##87: assume false; [2023-11-24 23:01:46,663 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##88: assume !false; [2023-11-24 23:01:46,663 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:01:47,009 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:01:47,010 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:01:47,012 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:01:47 BoogieIcfgContainer [2023-11-24 23:01:47,012 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:01:47,014 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:01:47,014 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:01:47,025 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:01:47,025 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:01:47" (1/1) ... [2023-11-24 23:01:47,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:01:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:47,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 86 states and 147 transitions. [2023-11-24 23:01:47,110 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 147 transitions. [2023-11-24 23:01:47,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-24 23:01:47,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:47,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:47,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:47,406 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 23:01:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:47,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 88 states and 148 transitions. [2023-11-24 23:01:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 148 transitions. [2023-11-24 23:01:47,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-24 23:01:47,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:47,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:01:47,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:47,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 87 states and 147 transitions. [2023-11-24 23:01:47,696 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 147 transitions. [2023-11-24 23:01:47,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-24 23:01:47,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:01:47,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:01:47,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:01:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 23:01:47,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:01:47,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 86 states and 146 transitions. [2023-11-24 23:01:47,827 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 146 transitions. [2023-11-24 23:01:47,830 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:01:47,831 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-24 23:01:47,842 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-24 23:01:47,915 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,919 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,920 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,920 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,920 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,920 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,921 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,921 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,921 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,921 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,921 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,922 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,922 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,922 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,922 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,922 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,923 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:01:47,924 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:01:47 ImpRootNode [2023-11-24 23:01:47,924 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:01:47,925 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:01:47,925 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:01:47,925 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:01:47,926 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:01:47" (3/4) ... [2023-11-24 23:01:47,929 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:01:47,952 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 46 nodes and edges [2023-11-24 23:01:47,954 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-24 23:01:47,955 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:01:47,956 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:01:48,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:01:48,136 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:01:48,137 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:01:48,138 INFO L158 Benchmark]: Toolchain (without parser) took 3107.62ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 94.2MB in the beginning and 103.5MB in the end (delta: -9.3MB). Peak memory consumption was 28.0MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,138 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:01:48,139 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.99ms. Allocated memory is still 140.5MB. Free memory was 93.9MB in the beginning and 78.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.56ms. Allocated memory is still 140.5MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,140 INFO L158 Benchmark]: Boogie Preprocessor took 52.18ms. Allocated memory is still 140.5MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,140 INFO L158 Benchmark]: RCFGBuilder took 1397.34ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 73.2MB in the beginning and 93.1MB in the end (delta: -19.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,141 INFO L158 Benchmark]: CodeCheck took 910.34ms. Allocated memory is still 176.2MB. Free memory was 93.1MB in the beginning and 114.0MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:01:48,141 INFO L158 Benchmark]: Witness Printer took 212.19ms. Allocated memory is still 176.2MB. Free memory was 114.0MB in the beginning and 103.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:01:48,143 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, 86 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 89 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 57 IncrementalHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 83 mSDtfsCounter, 57 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 420 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 49 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 4/4 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: 284]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 284]: 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: 151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 205]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 319]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 362]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 145]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 181]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.99ms. Allocated memory is still 140.5MB. Free memory was 93.9MB in the beginning and 78.6MB in the end (delta: 15.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.56ms. Allocated memory is still 140.5MB. Free memory was 78.3MB in the beginning and 75.3MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.18ms. Allocated memory is still 140.5MB. Free memory was 75.3MB in the beginning and 73.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1397.34ms. Allocated memory was 140.5MB in the beginning and 176.2MB in the end (delta: 35.7MB). Free memory was 73.2MB in the beginning and 93.1MB in the end (delta: -19.8MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * CodeCheck took 910.34ms. Allocated memory is still 176.2MB. Free memory was 93.1MB in the beginning and 114.0MB in the end (delta: -20.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 212.19ms. Allocated memory is still 176.2MB. Free memory was 114.0MB in the beginning and 103.5MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:01:48,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1eb72787-00e5-4338-bb34-c36ed980469d/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