./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/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 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 03:05:38,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 03:05:38,902 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 03:05:38,906 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 03:05:38,907 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 03:05:38,931 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 03:05:38,932 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 03:05:38,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 03:05:38,933 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 03:05:38,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 03:05:38,934 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 03:05:38,935 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 03:05:38,935 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 03:05:38,936 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 03:05:38,936 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 03:05:38,937 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 03:05:38,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 03:05:38,938 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 03:05:38,938 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 03:05:38,939 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 03:05:38,939 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 03:05:38,941 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 03:05:38,942 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 03:05:38,942 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 03:05:38,942 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 03:05:38,943 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 03:05:38,943 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:05:38,944 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 03:05:38,944 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 03:05:38,945 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 03:05:38,945 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 03:05:38,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 03:05:38,946 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 03:05:38,946 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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b50d522769b95768e9038f61a48a3b927d40a7b91b44cb14af45fcd08759b69 [2023-12-03 03:05:39,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 03:05:39,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 03:05:39,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 03:05:39,191 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 03:05:39,191 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 03:05:39,192 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2023-12-03 03:05:41,968 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 03:05:42,137 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 03:05:42,137 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c [2023-12-03 03:05:42,144 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/data/f7ab7691d/3b8ccc77b700443f8068e5634f3724d3/FLAGd079c47d3 [2023-12-03 03:05:42,159 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/data/f7ab7691d/3b8ccc77b700443f8068e5634f3724d3 [2023-12-03 03:05:42,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 03:05:42,163 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 03:05:42,164 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 03:05:42,164 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 03:05:42,168 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 03:05:42,168 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,169 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@194ecaa4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42, skipping insertion in model container [2023-12-03 03:05:42,169 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,186 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 03:05:42,337 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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2023-12-03 03:05:42,349 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:05:42,360 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 03:05:42,372 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_aaed0064-9f7d-4d90-9583-a95c0fe78b20/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound5.c[454,467] [2023-12-03 03:05:42,376 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 03:05:42,391 INFO L206 MainTranslator]: Completed translation [2023-12-03 03:05:42,391 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42 WrapperNode [2023-12-03 03:05:42,391 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 03:05:42,393 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 03:05:42,393 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 03:05:42,393 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 03:05:42,400 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,421 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 37 [2023-12-03 03:05:42,421 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 03:05:42,422 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 03:05:42,422 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 03:05:42,422 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 03:05:42,428 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,428 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,429 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,430 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,435 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,435 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,436 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,437 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 03:05:42,438 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 03:05:42,438 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 03:05:42,438 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 03:05:42,439 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 03:05:42,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 03:05:42,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 03:05:42,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 03:05:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 03:05:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 03:05:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 03:05:42,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 03:05:42,494 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 03:05:42,495 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 03:05:42,548 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 03:05:42,550 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 03:05:42,634 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 03:05:42,675 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 03:05:42,676 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 03:05:42,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:05:42 BoogieIcfgContainer [2023-12-03 03:05:42,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 03:05:42,678 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 03:05:42,678 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 03:05:42,685 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 03:05:42,686 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:05:42" (1/1) ... [2023-12-03 03:05:42,692 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 03:05:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:42,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2023-12-03 03:05:42,739 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2023-12-03 03:05:42,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-03 03:05:42,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:42,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:42,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 03:05:42,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:42,933 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 03:05:43,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2023-12-03 03:05:43,007 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2023-12-03 03:05:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 03:05:43,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:43,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:43,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:43,042 INFO L262 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 03:05:43,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:43,131 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 03:05:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:43,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-12-03 03:05:43,295 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-12-03 03:05:43,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 03:05:43,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:43,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:43,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 03:05:43,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:43,397 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 03:05:43,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:43,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-12-03 03:05:43,570 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-12-03 03:05:43,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-12-03 03:05:43,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:43,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:43,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 03:05:43,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 03:05:43,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:43,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2023-12-03 03:05:43,889 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-12-03 03:05:43,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 03:05:43,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:43,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:43,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 03:05:43,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:44,023 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 03:05:44,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:44,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 30 states and 43 transitions. [2023-12-03 03:05:44,294 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 43 transitions. [2023-12-03 03:05:44,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-12-03 03:05:44,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:44,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:44,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 03:05:44,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:44,448 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 03:05:44,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:44,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 33 states and 48 transitions. [2023-12-03 03:05:44,743 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 48 transitions. [2023-12-03 03:05:44,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 03:05:44,745 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:44,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:44,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:44,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 03:05:44,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:44,918 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 18 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-12-03 03:05:45,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 36 states and 53 transitions. [2023-12-03 03:05:45,282 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 53 transitions. [2023-12-03 03:05:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 03:05:45,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 03:05:45,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 03:05:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 03:05:45,320 INFO L262 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 03:05:45,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 03:05:45,632 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-12-03 03:05:47,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 03:05:47,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 26 states and 36 transitions. [2023-12-03 03:05:47,043 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-12-03 03:05:47,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 03:05:47,044 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2023-12-03 03:05:47,050 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 03:05:47,160 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:05:47,163 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 03:05:47,164 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 03:05:47 ImpRootNode [2023-12-03 03:05:47,164 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 03:05:47,164 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 03:05:47,165 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 03:05:47,165 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 03:05:47,165 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 03:05:42" (3/4) ... [2023-12-03 03:05:47,167 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 03:05:47,170 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 03:05:47,173 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-12-03 03:05:47,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 03:05:47,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 03:05:47,174 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 03:05:47,256 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 03:05:47,257 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 03:05:47,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 03:05:47,258 INFO L158 Benchmark]: Toolchain (without parser) took 5094.87ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 128.1MB in the beginning and 94.5MB in the end (delta: 33.6MB). Peak memory consumption was 70.9MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,258 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 111.1MB. Free memory was 63.4MB in the beginning and 63.2MB in the end (delta: 144.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 03:05:47,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.72ms. Allocated memory is still 165.7MB. Free memory was 127.7MB in the beginning and 117.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.89ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 116.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,260 INFO L158 Benchmark]: Boogie Preprocessor took 15.61ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.6MB in the end (delta: 996.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,260 INFO L158 Benchmark]: RCFGBuilder took 239.09ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 103.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,261 INFO L158 Benchmark]: CodeCheck took 4486.24ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 103.6MB in the beginning and 98.7MB in the end (delta: 4.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,261 INFO L158 Benchmark]: Witness Printer took 92.48ms. Allocated memory is still 201.3MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 03:05:47,264 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: 4.3s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 202 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 110 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 299 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 637 IncrementalHoareTripleChecker+Invalid, 936 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 299 mSolverCounterUnsat, 84 mSDtfsCounter, 637 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1491 GetRequests, 1365 SyntacticMatches, 40 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2522 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 781 SizeOfPredicates, 12 NumberOfNonLiveVariables, 687 ConjunctsInSsa, 159 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 224/331 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 0.29ms. Allocated memory is still 111.1MB. Free memory was 63.4MB in the beginning and 63.2MB in the end (delta: 144.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 227.72ms. Allocated memory is still 165.7MB. Free memory was 127.7MB in the beginning and 117.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.89ms. Allocated memory is still 165.7MB. Free memory was 117.2MB in the beginning and 116.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 15.61ms. Allocated memory is still 165.7MB. Free memory was 115.6MB in the beginning and 114.6MB in the end (delta: 996.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 239.09ms. Allocated memory is still 165.7MB. Free memory was 114.6MB in the beginning and 103.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 4486.24ms. Allocated memory was 165.7MB in the beginning and 201.3MB in the end (delta: 35.7MB). Free memory was 103.6MB in the beginning and 98.7MB in the end (delta: 4.8MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. * Witness Printer took 92.48ms. Allocated memory is still 201.3MB. Free memory was 98.7MB in the beginning and 94.5MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 03:05:47,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aaed0064-9f7d-4d90-9583-a95c0fe78b20/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