./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL --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 bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:35:36,700 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:35:36,874 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:35:36,879 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:35:36,880 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:35:36,909 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:35:36,910 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:35:36,911 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:35:36,912 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:35:36,912 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:35:36,913 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:35:36,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:35:36,914 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:35:36,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:35:36,916 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:35:36,916 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:35:36,917 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:35:36,917 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:35:36,918 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:35:36,918 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:35:36,919 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:35:36,920 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:35:36,920 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:35:36,921 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:35:36,921 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:35:36,922 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:35:36,922 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:35:36,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:35:36,923 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:35:36,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:35:36,924 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:35:36,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:35:36,925 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:35:36,925 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_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2023-11-19 03:35:37,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:35:37,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:35:37,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:35:37,318 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:35:37,319 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:35:37,320 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2023-11-19 03:35:40,768 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:35:41,083 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:35:41,083 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2023-11-19 03:35:41,094 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/data/c7fb6e371/15511cdbb919456fb493605fc587cad8/FLAGb39317a29 [2023-11-19 03:35:41,109 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/data/c7fb6e371/15511cdbb919456fb493605fc587cad8 [2023-11-19 03:35:41,112 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:35:41,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:35:41,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:35:41,115 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:35:41,120 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:35:41,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,121 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d60cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41, skipping insertion in model container [2023-11-19 03:35:41,122 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,142 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:35:41,311 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_f07e2996-997d-4090-8c61-2be0feb1c66d/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2023-11-19 03:35:41,315 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:35:41,324 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:35:41,337 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_f07e2996-997d-4090-8c61-2be0feb1c66d/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2023-11-19 03:35:41,338 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:35:41,352 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:35:41,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41 WrapperNode [2023-11-19 03:35:41,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:35:41,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:35:41,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:35:41,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:35:41,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,386 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2023-11-19 03:35:41,387 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:35:41,388 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:35:41,388 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:35:41,388 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:35:41,396 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,397 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,398 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,401 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,404 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,404 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:35:41,407 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:35:41,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:35:41,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:35:41,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:35:41,437 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:35:41,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:35:41,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:35:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:35:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:35:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2023-11-19 03:35:41,492 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2023-11-19 03:35:41,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:35:41,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:35:41,493 INFO L130 BoogieDeclarations]: Found specification of procedure id [2023-11-19 03:35:41,493 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2023-11-19 03:35:41,555 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:35:41,556 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:35:41,703 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:35:41,755 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:35:41,765 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:35:41,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:35:41 BoogieIcfgContainer [2023-11-19 03:35:41,770 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:35:41,771 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:35:41,771 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:35:41,779 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:35:41,780 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:35:41" (1/1) ... [2023-11-19 03:35:41,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:35:41,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:41,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2023-11-19 03:35:41,835 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2023-11-19 03:35:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:35:41,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:41,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:42,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:42,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2023-11-19 03:35:42,241 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2023-11-19 03:35:42,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 03:35:42,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:42,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:42,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:35:42,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:42,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2023-11-19 03:35:42,949 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2023-11-19 03:35:42,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:35:42,952 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:42,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:42,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:43,474 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:35:44,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:44,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2023-11-19 03:35:44,181 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2023-11-19 03:35:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:35:44,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:44,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:44,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:44,787 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 03:35:46,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 43 states and 52 transitions. [2023-11-19 03:35:46,014 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2023-11-19 03:35:46,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:35:46,015 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:46,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:46,621 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-19 03:35:47,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:47,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 46 states and 56 transitions. [2023-11-19 03:35:47,124 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2023-11-19 03:35:47,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 03:35:47,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:35:47,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:35:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:35:47,785 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 03:35:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:35:48,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 40 states and 45 transitions. [2023-11-19 03:35:48,235 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 45 transitions. [2023-11-19 03:35:48,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:35:48,237 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-11-19 03:35:48,247 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:35:48,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:35:48 ImpRootNode [2023-11-19 03:35:48,331 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:35:48,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:35:48,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:35:48,332 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:35:48,333 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:35:41" (3/4) ... [2023-11-19 03:35:48,337 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:35:48,340 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2023-11-19 03:35:48,341 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2023-11-19 03:35:48,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:35:48,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 03:35:48,346 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:35:48,347 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:35:48,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:35:48,430 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:35:48,430 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:35:48,431 INFO L158 Benchmark]: Toolchain (without parser) took 7317.66ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 128.3MB in the beginning and 128.1MB in the end (delta: 270.8kB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,432 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:35:48,432 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 118.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,432 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.34ms. Allocated memory is still 157.3MB. Free memory was 117.6MB in the beginning and 116.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,433 INFO L158 Benchmark]: Boogie Preprocessor took 18.23ms. Allocated memory is still 157.3MB. Free memory was 116.3MB in the beginning and 115.5MB in the end (delta: 828.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:35:48,433 INFO L158 Benchmark]: RCFGBuilder took 363.39ms. Allocated memory is still 157.3MB. Free memory was 115.5MB in the beginning and 104.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,434 INFO L158 Benchmark]: CodeCheck took 6560.43ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 104.2MB in the beginning and 133.2MB in the end (delta: -28.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,434 INFO L158 Benchmark]: Witness Printer took 98.60ms. Allocated memory is still 188.7MB. Free memory was 133.2MB in the beginning and 128.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:35:48,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 210 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 66 mSDsluCounter, 243 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 110 mSDsCounter, 223 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 447 IncrementalHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 223 mSolverCounterUnsat, 133 mSDtfsCounter, 447 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1010 GetRequests, 895 SyntacticMatches, 21 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3168 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 35/66 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: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 86.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.02ms. Allocated memory is still 157.3MB. Free memory was 127.9MB in the beginning and 118.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.34ms. Allocated memory is still 157.3MB. Free memory was 117.6MB in the beginning and 116.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.23ms. Allocated memory is still 157.3MB. Free memory was 116.3MB in the beginning and 115.5MB in the end (delta: 828.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 363.39ms. Allocated memory is still 157.3MB. Free memory was 115.5MB in the beginning and 104.2MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 6560.43ms. Allocated memory was 157.3MB in the beginning and 188.7MB in the end (delta: 31.5MB). Free memory was 104.2MB in the beginning and 133.2MB in the end (delta: -28.9MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * Witness Printer took 98.60ms. Allocated memory is still 188.7MB. Free memory was 133.2MB in the beginning and 128.1MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:35:48,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f07e2996-997d-4090-8c61-2be0feb1c66d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE