./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.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_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9 --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 2bbd590b471bbc2b8578e4cdd51bc82209f70d419c139ae39968994eaddc5edf --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 00:24:57,903 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 00:24:57,971 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 00:24:57,975 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 00:24:57,976 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 00:24:58,000 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 00:24:58,002 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 00:24:58,002 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 00:24:58,003 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 00:24:58,003 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 00:24:58,004 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 00:24:58,005 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 00:24:58,005 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 00:24:58,006 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 00:24:58,006 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 00:24:58,007 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 00:24:58,007 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 00:24:58,008 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 00:24:58,008 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 00:24:58,009 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 00:24:58,009 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 00:24:58,010 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 00:24:58,010 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 00:24:58,011 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 00:24:58,011 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 00:24:58,012 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 00:24:58,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:24:58,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 00:24:58,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 00:24:58,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 00:24:58,014 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 00:24:58,014 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 00:24:58,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 00:24:58,015 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_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2bbd590b471bbc2b8578e4cdd51bc82209f70d419c139ae39968994eaddc5edf [2023-12-03 00:24:58,217 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 00:24:58,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 00:24:58,238 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 00:24:58,240 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 00:24:58,240 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 00:24:58,241 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.c [2023-12-03 00:25:00,949 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 00:25:01,130 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 00:25:01,131 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.c [2023-12-03 00:25:01,139 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/data/dd44fa888/7f9f41fb43584a0a9988aa5c321c6af0/FLAGa0a8a856f [2023-12-03 00:25:01,154 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/data/dd44fa888/7f9f41fb43584a0a9988aa5c321c6af0 [2023-12-03 00:25:01,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 00:25:01,158 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 00:25:01,159 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 00:25:01,159 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 00:25:01,163 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 00:25:01,164 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,165 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ef4cd22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01, skipping insertion in model container [2023-12-03 00:25:01,166 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,185 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 00:25:01,314 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_6e25d80c-a7b2-44f5-b03f-007eebc8628f/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.c[458,471] [2023-12-03 00:25:01,332 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:25:01,345 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 00:25:01,362 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_6e25d80c-a7b2-44f5-b03f-007eebc8628f/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound50.c[458,471] [2023-12-03 00:25:01,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 00:25:01,388 INFO L206 MainTranslator]: Completed translation [2023-12-03 00:25:01,389 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01 WrapperNode [2023-12-03 00:25:01,389 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 00:25:01,391 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 00:25:01,391 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 00:25:01,391 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 00:25:01,401 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,409 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,428 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-03 00:25:01,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 00:25:01,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 00:25:01,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 00:25:01,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 00:25:01,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,438 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,441 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,444 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,445 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,446 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 00:25:01,447 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 00:25:01,447 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 00:25:01,447 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 00:25:01,448 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 00:25:01,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 00:25:01,476 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 00:25:01,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 00:25:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 00:25:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 00:25:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 00:25:01,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 00:25:01,514 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 00:25:01,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 00:25:01,573 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 00:25:01,575 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 00:25:01,711 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 00:25:01,755 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 00:25:01,756 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 00:25:01,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:25:01 BoogieIcfgContainer [2023-12-03 00:25:01,758 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 00:25:01,758 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 00:25:01,759 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 00:25:01,766 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 00:25:01,767 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:25:01" (1/1) ... [2023-12-03 00:25:01,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 00:25:01,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:01,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-12-03 00:25:01,831 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-03 00:25:01,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 00:25:01,834 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:01,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:01,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:01,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 00:25:01,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:02,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:02,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-12-03 00:25:02,170 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-03 00:25:02,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 00:25:02,175 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:02,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:02,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:02,217 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 00:25:02,220 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:02,331 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:02,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-03 00:25:02,652 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-03 00:25:02,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 00:25:02,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:02,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:02,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:02,684 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 00:25:02,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:02,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 00:25:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:03,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-12-03 00:25:03,016 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-03 00:25:03,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 00:25:03,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:03,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:03,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:03,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 00:25:03,069 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:03,163 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 00:25:03,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:03,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-12-03 00:25:03,408 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-12-03 00:25:03,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 00:25:03,409 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:03,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:03,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 00:25:03,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:03,555 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 00:25:03,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-12-03 00:25:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-12-03 00:25:03,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 00:25:03,836 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:03,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:03,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 00:25:03,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:04,007 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 13 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-12-03 00:25:04,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2023-12-03 00:25:04,367 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2023-12-03 00:25:04,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 00:25:04,368 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:04,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:04,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-03 00:25:04,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 20 proven. 48 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-12-03 00:25:05,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:05,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-12-03 00:25:05,314 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-03 00:25:05,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 00:25:05,316 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:05,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:05,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:05,462 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 00:25:05,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 23 proven. 61 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2023-12-03 00:25:06,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:06,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 39 states and 58 transitions. [2023-12-03 00:25:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 58 transitions. [2023-12-03 00:25:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 00:25:06,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:06,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:06,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-03 00:25:06,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:06,552 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 28 proven. 81 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-12-03 00:25:07,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:25:07,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 42 states and 63 transitions. [2023-12-03 00:25:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 63 transitions. [2023-12-03 00:25:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 00:25:07,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 00:25:07,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 00:25:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 00:25:07,286 INFO L262 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 00:25:07,289 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 00:25:17,677 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 00:25:54,887 WARN L293 SmtUtils]: Spent 12.72s on a formula simplification that was a NOOP. DAG size: 24 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 00:26:04,901 WARN L293 SmtUtils]: Spent 10.00s on a formula simplification that was a NOOP. DAG size: 12 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-03 00:26:05,277 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 144 proven. 8 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-12-03 00:26:42,243 WARN L293 SmtUtils]: Spent 10.01s on a formula simplification that was a NOOP. DAG size: 25 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-03 00:26:43,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 00:26:43,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 34 states and 50 transitions. [2023-12-03 00:26:43,138 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 50 transitions. [2023-12-03 00:26:43,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 00:26:43,139 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 11 iterations. [2023-12-03 00:26:43,147 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 00:26:43,258 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:26:43,262 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 00:26:43,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 12:26:43 ImpRootNode [2023-12-03 00:26:43,262 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 00:26:43,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 00:26:43,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 00:26:43,263 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 00:26:43,263 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:25:01" (3/4) ... [2023-12-03 00:26:43,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 00:26:43,267 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 00:26:43,270 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 00:26:43,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 00:26:43,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 00:26:43,271 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 00:26:43,347 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 00:26:43,347 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 00:26:43,348 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 00:26:43,349 INFO L158 Benchmark]: Toolchain (without parser) took 102190.84ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 106.2MB in the beginning and 111.0MB in the end (delta: -4.9MB). Peak memory consumption was 27.4MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,349 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:26:43,349 INFO L158 Benchmark]: CACSL2BoogieTranslator took 230.57ms. Allocated memory is still 144.7MB. Free memory was 106.2MB in the beginning and 95.6MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,350 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.91ms. Allocated memory is still 144.7MB. Free memory was 95.6MB in the beginning and 94.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,350 INFO L158 Benchmark]: Boogie Preprocessor took 17.25ms. Allocated memory is still 144.7MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,351 INFO L158 Benchmark]: RCFGBuilder took 310.72ms. Allocated memory is still 144.7MB. Free memory was 92.9MB in the beginning and 81.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,351 INFO L158 Benchmark]: CodeCheck took 101503.90ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 115.2MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 00:26:43,352 INFO L158 Benchmark]: Witness Printer took 84.91ms. Allocated memory is still 174.1MB. Free memory was 115.2MB in the beginning and 111.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 00:26:43,354 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 101.4s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 264 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 378 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 272 mSDsCounter, 432 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 862 IncrementalHoareTripleChecker+Invalid, 1294 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 432 mSolverCounterUnsat, 106 mSDtfsCounter, 862 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2178 GetRequests, 1988 SyntacticMatches, 100 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3294 ImplicationChecksByTransitivity, 78.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 59.1s InterpolantComputationTime, 318 NumberOfCodeBlocks, 318 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 308 ConstructedInterpolants, 0 QuantifiedInterpolants, 1324 SizeOfPredicates, 21 NumberOfNonLiveVariables, 1022 ConjunctsInSsa, 275 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 475/734 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: 12]: 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: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 144.7MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 230.57ms. Allocated memory is still 144.7MB. Free memory was 106.2MB in the beginning and 95.6MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.91ms. Allocated memory is still 144.7MB. Free memory was 95.6MB in the beginning and 94.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.25ms. Allocated memory is still 144.7MB. Free memory was 94.1MB in the beginning and 92.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 310.72ms. Allocated memory is still 144.7MB. Free memory was 92.9MB in the beginning and 81.1MB in the end (delta: 11.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 101503.90ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 81.1MB in the beginning and 115.2MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 84.91ms. Allocated memory is still 174.1MB. Free memory was 115.2MB in the beginning and 111.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 00:26:43,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e25d80c-a7b2-44f5-b03f-007eebc8628f/bin/ukojak-verify-Qdu7aM0XO9/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