./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/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_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:10:59,035 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:10:59,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:10:59,184 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:10:59,184 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:10:59,234 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:10:59,235 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:10:59,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:10:59,237 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:10:59,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:10:59,242 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:10:59,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:10:59,243 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:10:59,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:10:59,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:10:59,246 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:10:59,246 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:10:59,247 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:10:59,247 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:10:59,247 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:10:59,248 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:10:59,248 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:10:59,249 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:10:59,250 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:10:59,250 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:10:59,251 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:10:59,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:10:59,251 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:10:59,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:10:59,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:10:59,254 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:10:59,254 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:10:59,254 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:10:59,254 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_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c7f1683dc0c60d20b83300f79a9b15e37cd1fd05703e492aec10298f1b5a1afa [2023-11-24 23:10:59,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:10:59,610 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:10:59,613 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:10:59,614 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:10:59,615 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:10:59,616 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-11-24 23:11:02,724 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:11:03,039 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:11:03,040 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c [2023-11-24 23:11:03,050 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/data/17ed6a7ae/4362befedf2244f8abb733f921082d88/FLAGa08b41ac2 [2023-11-24 23:11:03,067 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/data/17ed6a7ae/4362befedf2244f8abb733f921082d88 [2023-11-24 23:11:03,073 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:11:03,075 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:11:03,080 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:03,080 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:11:03,085 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:11:03,086 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a01864a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03, skipping insertion in model container [2023-11-24 23:11:03,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,114 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:11:03,296 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2023-11-24 23:11:03,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:03,327 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:11:03,340 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_valuebound1.c[524,537] [2023-11-24 23:11:03,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:03,366 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:11:03,367 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03 WrapperNode [2023-11-24 23:11:03,367 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:03,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:03,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:11:03,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:11:03,388 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,402 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,437 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2023-11-24 23:11:03,441 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:03,442 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:11:03,442 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:11:03,442 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:11:03,452 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,452 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,455 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,455 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,459 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,477 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,478 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,480 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:11:03,481 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:11:03,481 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:11:03,481 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:11:03,482 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:03,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:03,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:11:03,538 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:11:03,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:11:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:11:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-24 23:11:03,585 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-24 23:11:03,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:11:03,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:11:03,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:11:03,587 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:11:03,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:11:03,661 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:11:03,664 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:11:03,866 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:11:03,991 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:11:03,991 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:11:03,993 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:03 BoogieIcfgContainer [2023-11-24 23:11:03,993 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:11:03,994 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:11:03,994 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:11:04,005 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:11:04,006 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:03" (1/1) ... [2023-11-24 23:11:04,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:11:04,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:04,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-11-24 23:11:04,070 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-11-24 23:11:04,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-24 23:11:04,075 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:04,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:04,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 23:11:04,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:11:04,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:04,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 33 transitions. [2023-11-24 23:11:04,850 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2023-11-24 23:11:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:04,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:04,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:04,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:04,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 30 conjunts are in the unsatisfiable core [2023-11-24 23:11:04,949 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:05,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 23:11:05,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 29 states and 45 transitions. [2023-11-24 23:11:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2023-11-24 23:11:05,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 23:11:05,728 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:05,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:05,783 INFO L262 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-24 23:11:05,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-24 23:11:07,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:07,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 50 transitions. [2023-11-24 23:11:07,475 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 50 transitions. [2023-11-24 23:11:07,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 23:11:07,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:07,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:07,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:07,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 23:11:07,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 23:11:08,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:08,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2023-11-24 23:11:08,259 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2023-11-24 23:11:08,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-24 23:11:08,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:08,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:08,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-24 23:11:08,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 23:11:09,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 36 states and 63 transitions. [2023-11-24 23:11:09,259 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2023-11-24 23:11:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-24 23:11:09,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:09,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:09,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:09,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-24 23:11:09,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-11-24 23:11:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:10,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 30 states and 40 transitions. [2023-11-24 23:11:10,172 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2023-11-24 23:11:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-24 23:11:10,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:10,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:10,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:10,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-24 23:11:10,253 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-24 23:11:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 24 states and 31 transitions. [2023-11-24 23:11:11,614 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2023-11-24 23:11:11,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:11:11,615 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-24 23:11:11,624 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:11:11,856 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:11:11,860 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:11:11,861 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:11:11 ImpRootNode [2023-11-24 23:11:11,861 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:11:11,862 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:11:11,862 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:11:11,862 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:11:11,862 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:03" (3/4) ... [2023-11-24 23:11:11,864 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:11:11,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-24 23:11:11,871 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 23:11:11,878 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2023-11-24 23:11:11,879 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-11-24 23:11:11,879 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:11:11,880 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:11:12,006 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:11:12,008 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:11:12,008 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:11:12,009 INFO L158 Benchmark]: Toolchain (without parser) took 8933.64ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 165.5MB in the beginning and 156.1MB in the end (delta: 9.4MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,009 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 89.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:11:12,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 287.77ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 154.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.90ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 152.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,011 INFO L158 Benchmark]: Boogie Preprocessor took 38.52ms. Allocated memory is still 195.0MB. Free memory was 152.6MB in the beginning and 151.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,013 INFO L158 Benchmark]: RCFGBuilder took 512.28ms. Allocated memory is still 195.0MB. Free memory was 151.5MB in the beginning and 133.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,014 INFO L158 Benchmark]: CodeCheck took 7867.27ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 133.8MB in the beginning and 161.4MB in the end (delta: -27.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,015 INFO L158 Benchmark]: Witness Printer took 146.85ms. Allocated memory is still 234.9MB. Free memory was 161.4MB in the beginning and 156.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:11:12,018 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, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.6s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 98 mSDsluCounter, 197 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 66 mSDsCounter, 243 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 789 IncrementalHoareTripleChecker+Invalid, 1032 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 243 mSolverCounterUnsat, 131 mSDtfsCounter, 789 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1608 GetRequests, 1480 SyntacticMatches, 46 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2832 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 188 NumberOfCodeBlocks, 188 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 181 ConstructedInterpolants, 1 QuantifiedInterpolants, 1174 SizeOfPredicates, 43 NumberOfNonLiveVariables, 592 ConjunctsInSsa, 186 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 84/103 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: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory was 86.4MB in the beginning and 86.3MB in the end (delta: 89.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 287.77ms. Allocated memory is still 195.0MB. Free memory was 165.5MB in the beginning and 154.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.90ms. Allocated memory is still 195.0MB. Free memory was 154.6MB in the beginning and 152.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.52ms. Allocated memory is still 195.0MB. Free memory was 152.6MB in the beginning and 151.5MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.28ms. Allocated memory is still 195.0MB. Free memory was 151.5MB in the beginning and 133.8MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 7867.27ms. Allocated memory was 195.0MB in the beginning and 234.9MB in the end (delta: 39.8MB). Free memory was 133.8MB in the beginning and 161.4MB in the end (delta: -27.5MB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. * Witness Printer took 146.85ms. Allocated memory is still 234.9MB. Free memory was 161.4MB in the beginning and 156.1MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:11:12,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f6a7bc1-4f7b-4ada-b5f9-183f0fd9a9c8/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