./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/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 9fcd44eaa3ebd405f2b1e22097631bccfcd3fffe0471ba695e470043120f86ec --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 23:11:30,864 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:11:30,985 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:11:30,993 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:11:30,994 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:11:31,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:11:31,036 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:11:31,036 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:11:31,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:11:31,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:11:31,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:11:31,044 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:11:31,044 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:11:31,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:11:31,047 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:11:31,047 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:11:31,048 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:11:31,048 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:11:31,049 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:11:31,049 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:11:31,050 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:11:31,050 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:11:31,051 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:11:31,052 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:11:31,052 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:11:31,053 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:11:31,053 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:31,054 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:11:31,054 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:11:31,055 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:11:31,056 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:11:31,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:11:31,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:11:31,057 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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9fcd44eaa3ebd405f2b1e22097631bccfcd3fffe0471ba695e470043120f86ec [2023-11-24 23:11:31,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:11:31,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:11:31,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:11:31,454 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:11:31,455 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:11:31,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c [2023-11-24 23:11:34,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:11:34,705 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:11:34,706 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c [2023-11-24 23:11:34,715 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/data/18e4de893/42a98f243b304db3ace2bdeec953ed0e/FLAGbebd04d8e [2023-11-24 23:11:34,731 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/data/18e4de893/42a98f243b304db3ace2bdeec953ed0e [2023-11-24 23:11:34,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:11:34,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:11:34,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:34,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:11:34,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:11:34,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:34" (1/1) ... [2023-11-24 23:11:34,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a034a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:34, skipping insertion in model container [2023-11-24 23:11:34,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:11:34" (1/1) ... [2023-11-24 23:11:34,769 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:11:34,932 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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c[525,538] [2023-11-24 23:11:34,989 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:35,004 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:11:35,021 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_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_unwindbound2.c[525,538] [2023-11-24 23:11:35,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:11:35,057 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:11:35,057 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35 WrapperNode [2023-11-24 23:11:35,057 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:11:35,059 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:35,060 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:11:35,060 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:11:35,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,101 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 50 [2023-11-24 23:11:35,101 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:11:35,112 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:11:35,112 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:11:35,112 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:11:35,123 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,135 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,136 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,139 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,152 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,158 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,160 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:11:35,162 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:11:35,163 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:11:35,163 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:11:35,164 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:11:35,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:11:35,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:11:35,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:11:35,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:11:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:11:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:11:35,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:11:35,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-24 23:11:35,248 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-24 23:11:35,328 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:11:35,330 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:11:35,455 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:11:35,488 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:11:35,492 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-24 23:11:35,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:35 BoogieIcfgContainer [2023-11-24 23:11:35,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:11:35,495 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:11:35,495 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:11:35,505 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:11:35,505 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:35" (1/1) ... [2023-11-24 23:11:35,512 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:11:35,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:35,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-24 23:11:35,568 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-24 23:11:35,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-24 23:11:35,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:35,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:35,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 23:11:35,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:35,719 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 23:11:35,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:35,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-11-24 23:11:35,739 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-11-24 23:11:35,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:11:35,740 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:35,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:35,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:35,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 23:11:35,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:35,831 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 23:11:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:35,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 16 states and 19 transitions. [2023-11-24 23:11:35,873 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2023-11-24 23:11:35,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-24 23:11:35,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:35,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:35,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:35,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-24 23:11:35,912 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:36,099 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 23:11:36,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:36,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2023-11-24 23:11:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-11-24 23:11:36,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-24 23:11:36,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:36,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:36,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:36,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-24 23:11:36,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:36,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:36,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2023-11-24 23:11:36,928 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2023-11-24 23:11:36,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:11:36,929 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:36,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:37,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 23:11:37,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:37,645 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:42,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:42,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 32 states and 54 transitions. [2023-11-24 23:11:42,566 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 54 transitions. [2023-11-24 23:11:42,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:11:42,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:42,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:42,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-24 23:11:42,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:44,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:44,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 40 states and 74 transitions. [2023-11-24 23:11:44,751 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 74 transitions. [2023-11-24 23:11:44,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-24 23:11:44,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:44,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:44,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:44,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-24 23:11:44,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:47,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:47,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 43 states and 85 transitions. [2023-11-24 23:11:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 85 transitions. [2023-11-24 23:11:47,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:47,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:47,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:47,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:47,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:11:47,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:47,550 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:52,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:52,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 53 states and 108 transitions. [2023-11-24 23:11:52,595 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 108 transitions. [2023-11-24 23:11:52,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:52,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:52,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:52,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-24 23:11:52,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:52,896 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:11:54,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:11:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 36 states and 50 transitions. [2023-11-24 23:11:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2023-11-24 23:11:54,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:11:54,771 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:11:54,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:11:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:11:54,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 27 conjunts are in the unsatisfiable core [2023-11-24 23:11:54,879 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:11:56,402 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:12:03,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:03,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 38 states and 53 transitions. [2023-11-24 23:12:03,940 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 53 transitions. [2023-11-24 23:12:03,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 23:12:03,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:12:03,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:12:04,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:12:04,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-24 23:12:04,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:12:06,609 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 23:12:28,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:12:28,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 31 states and 42 transitions. [2023-11-24 23:12:28,898 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2023-11-24 23:12:28,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:12:28,901 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-24 23:12:28,910 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:12:29,533 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:12:29,537 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:12:29,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:12:29 ImpRootNode [2023-11-24 23:12:29,538 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:12:29,538 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:12:29,538 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:12:29,539 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:12:29,539 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:11:35" (3/4) ... [2023-11-24 23:12:29,541 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:12:29,546 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-11-24 23:12:29,550 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-24 23:12:29,550 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-24 23:12:29,550 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:12:29,551 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:12:29,641 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:12:29,642 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:12:29,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:12:29,643 INFO L158 Benchmark]: Toolchain (without parser) took 54907.72ms. Allocated memory was 138.4MB in the beginning and 222.3MB in the end (delta: 83.9MB). Free memory was 77.5MB in the beginning and 167.1MB in the end (delta: -89.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:29,643 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:29,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.81ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 77.2MB in the beginning and 153.5MB in the end (delta: -76.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2023-11-24 23:12:29,645 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 152.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:29,645 INFO L158 Benchmark]: Boogie Preprocessor took 49.76ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 154.3MB in the end (delta: 874.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:12:29,646 INFO L158 Benchmark]: RCFGBuilder took 332.01ms. Allocated memory is still 184.5MB. Free memory was 154.3MB in the beginning and 142.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 23:12:29,646 INFO L158 Benchmark]: CodeCheck took 54042.74ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 142.6MB in the beginning and 172.3MB in the end (delta: -29.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2023-11-24 23:12:29,647 INFO L158 Benchmark]: Witness Printer took 104.00ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 167.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-24 23:12:29,649 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, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.4s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 484 SdHoareTripleChecker+Valid, 8.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 248 mSDsluCounter, 329 SdHoareTripleChecker+Invalid, 8.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 140 mSDsCounter, 594 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1959 IncrementalHoareTripleChecker+Invalid, 2553 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 594 mSolverCounterUnsat, 189 mSDtfsCounter, 1959 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1913 GetRequests, 1676 SyntacticMatches, 49 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16241 ImplicationChecksByTransitivity, 47.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 170 NumberOfCodeBlocks, 170 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 159 ConstructedInterpolants, 7 QuantifiedInterpolants, 1188 SizeOfPredicates, 16 NumberOfNonLiveVariables, 798 ConjunctsInSsa, 143 ConjunctsInUnsatCore, 11 InterpolantComputations, 3 PerfectInterpolantSequences, 51/84 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: 17]: 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: 44]: 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 0.33ms. Allocated memory is still 138.4MB. Free memory is still 111.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.81ms. Allocated memory was 138.4MB in the beginning and 184.5MB in the end (delta: 46.1MB). Free memory was 77.2MB in the beginning and 153.5MB in the end (delta: -76.3MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 184.5MB. Free memory was 153.5MB in the beginning and 152.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.76ms. Allocated memory is still 184.5MB. Free memory was 155.2MB in the beginning and 154.3MB in the end (delta: 874.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 332.01ms. Allocated memory is still 184.5MB. Free memory was 154.3MB in the beginning and 142.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 54042.74ms. Allocated memory was 184.5MB in the beginning and 222.3MB in the end (delta: 37.7MB). Free memory was 142.6MB in the beginning and 172.3MB in the end (delta: -29.7MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 104.00ms. Allocated memory is still 222.3MB. Free memory was 172.3MB in the beginning and 167.1MB 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! [2023-11-24 23:12:29,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04062fdc-5a17-4ea3-8a76-b2d52cd0c453/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