./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/filter2_set.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_set.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL --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 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:46:13,266 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:46:13,403 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:46:13,414 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:46:13,415 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:46:13,459 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:46:13,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:46:13,465 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:46:13,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:46:13,474 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:46:13,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:46:13,476 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:46:13,477 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:46:13,479 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:46:13,479 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:46:13,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:46:13,480 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:46:13,481 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:46:13,481 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:46:13,482 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:46:13,482 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:46:13,483 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:46:13,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:46:13,484 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:46:13,484 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:46:13,485 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:46:13,485 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:46:13,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:46:13,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:13,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:46:13,488 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:46:13,489 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:46:13,489 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:46:13,489 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:46:13,490 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:46:13,490 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_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2023-11-19 02:46:13,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:46:13,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:46:13,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:46:13,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:46:13,833 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:46:13,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/filter2_set.c [2023-11-19 02:46:17,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:46:17,248 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:46:17,249 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/sv-benchmarks/c/float-benchs/filter2_set.c [2023-11-19 02:46:17,257 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/data/ef6daaf1f/7c5d3bbb874e4eb483eda2a21f522170/FLAG8cab728f1 [2023-11-19 02:46:17,273 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/data/ef6daaf1f/7c5d3bbb874e4eb483eda2a21f522170 [2023-11-19 02:46:17,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:46:17,278 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:46:17,280 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:17,281 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:46:17,286 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:46:17,287 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,288 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@217bd88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17, skipping insertion in model container [2023-11-19 02:46:17,288 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,311 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:46:17,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:17,523 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:46:17,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:46:17,560 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:46:17,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17 WrapperNode [2023-11-19 02:46:17,561 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:46:17,562 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:17,562 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:46:17,562 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:46:17,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,577 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,599 INFO L138 Inliner]: procedures = 14, calls = 17, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 80 [2023-11-19 02:46:17,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:46:17,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:46:17,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:46:17,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:46:17,610 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,618 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,628 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,633 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:46:17,634 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:46:17,634 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:46:17,634 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:46:17,635 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:46:17" (1/1) ... [2023-11-19 02:46:17,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:46:17,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:46:17,674 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:46:17,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:46:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:46:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 02:46:17,718 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 02:46:17,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:46:17,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:46:17,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:46:17,799 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:46:17,802 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:46:17,971 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:46:18,024 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:46:18,024 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:46:18,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:18 BoogieIcfgContainer [2023-11-19 02:46:18,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:46:18,031 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:46:18,031 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:46:18,043 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:46:18,044 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:18" (1/1) ... [2023-11-19 02:46:18,054 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:46:18,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:18,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 02:46:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 02:46:18,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 02:46:18,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:18,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:18,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:18,648 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 02:46:18,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:18,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-19 02:46:18,736 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-19 02:46:18,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 02:46:18,738 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:18,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:18,925 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 02:46:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:18,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 25 states and 34 transitions. [2023-11-19 02:46:18,982 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2023-11-19 02:46:18,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 02:46:18,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:18,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:19,262 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2023-11-19 02:46:19,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:19,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2023-11-19 02:46:19,394 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2023-11-19 02:46:19,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:46:19,397 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:19,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:19,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:19,505 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-19 02:46:19,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:19,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 28 states and 39 transitions. [2023-11-19 02:46:19,685 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2023-11-19 02:46:19,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-19 02:46:19,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:19,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:19,845 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-19 02:46:19,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 23 states and 31 transitions. [2023-11-19 02:46:19,930 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2023-11-19 02:46:19,931 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:46:19,931 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-19 02:46:19,941 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 02:46:19,985 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:46:19,989 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:46:19,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:46:19 ImpRootNode [2023-11-19 02:46:19,990 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:46:19,991 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:46:19,991 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:46:19,991 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:46:19,992 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:46:18" (3/4) ... [2023-11-19 02:46:19,994 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:46:19,998 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 02:46:20,003 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2023-11-19 02:46:20,003 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 02:46:20,003 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:46:20,004 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:46:20,104 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:46:20,105 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:46:20,105 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:46:20,106 INFO L158 Benchmark]: Toolchain (without parser) took 2827.42ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 99.1MB in the end (delta: 51.1MB). Peak memory consumption was 54.2MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,106 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:46:20,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.78ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 139.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.01ms. Allocated memory is still 199.2MB. Free memory was 139.0MB in the beginning and 137.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:46:20,107 INFO L158 Benchmark]: Boogie Preprocessor took 32.25ms. Allocated memory is still 199.2MB. Free memory was 137.7MB in the beginning and 136.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,108 INFO L158 Benchmark]: RCFGBuilder took 396.55ms. Allocated memory is still 199.2MB. Free memory was 136.3MB in the beginning and 123.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,108 INFO L158 Benchmark]: CodeCheck took 1958.89ms. Allocated memory is still 199.2MB. Free memory was 123.0MB in the beginning and 104.4MB in the end (delta: 18.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,108 INFO L158 Benchmark]: Witness Printer took 114.24ms. Allocated memory is still 199.2MB. Free memory was 104.4MB in the beginning and 99.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:46:20,111 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 2 procedures, 20 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 272 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 120 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 120 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 942 GetRequests, 906 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 175 ConstructedInterpolants, 0 QuantifiedInterpolants, 247 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 355/368 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: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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: 51]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 138.4MB. Free memory is still 82.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.78ms. Allocated memory is still 199.2MB. Free memory was 150.3MB in the beginning and 139.0MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.01ms. Allocated memory is still 199.2MB. Free memory was 139.0MB in the beginning and 137.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.25ms. Allocated memory is still 199.2MB. Free memory was 137.7MB in the beginning and 136.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.55ms. Allocated memory is still 199.2MB. Free memory was 136.3MB in the beginning and 123.0MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 1958.89ms. Allocated memory is still 199.2MB. Free memory was 123.0MB in the beginning and 104.4MB in the end (delta: 18.6MB). Peak memory consumption was 20.7MB. Max. memory is 16.1GB. * Witness Printer took 114.24ms. Allocated memory is still 199.2MB. Free memory was 104.4MB in the beginning and 99.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:46:20,157 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_76b86f24-fbd9-4841-9353-4e5695eaf6ac/bin/ukojak-verify-G8NBE6pJGL/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