./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/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 4f9eb6f5ed10e87bb24b60ecc008ae0f7d927414b72cef44f169022f555bf831 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:03:12,646 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:03:12,708 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-02 21:03:12,712 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:03:12,712 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:03:12,734 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:03:12,735 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 21:03:12,735 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-02 21:03:12,736 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:03:12,737 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:03:12,737 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:03:12,738 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:03:12,738 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:03:12,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:03:12,739 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:03:12,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:03:12,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:03:12,741 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:03:12,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:03:12,742 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:03:12,742 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:03:12,743 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:03:12,744 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:03:12,744 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:03:12,745 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:03:12,745 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:03:12,745 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:12,746 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:03:12,746 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:03:12,747 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 21:03:12,747 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:03:12,748 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:03:12,748 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 21:03:12,748 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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9eb6f5ed10e87bb24b60ecc008ae0f7d927414b72cef44f169022f555bf831 [2023-12-02 21:03:12,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:03:12,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:03:12,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:03:12,967 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:03:12,967 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:03:12,968 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2023-12-02 21:03:15,758 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:03:15,929 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:03:15,930 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c [2023-12-02 21:03:15,938 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/data/b97d7f136/63ad3f48d534405695e2a0c097919980/FLAG02536756d [2023-12-02 21:03:15,953 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/data/b97d7f136/63ad3f48d534405695e2a0c097919980 [2023-12-02 21:03:15,955 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:03:15,957 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:03:15,958 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:15,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:03:15,964 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:03:15,965 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:15" (1/1) ... [2023-12-02 21:03:15,966 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f836029 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:15, skipping insertion in model container [2023-12-02 21:03:15,966 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:03:15" (1/1) ... [2023-12-02 21:03:15,986 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:03:16,137 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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c[525,538] [2023-12-02 21:03:16,152 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:16,162 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:03:16,175 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_b3b88d52-2d4d-468c-aabf-9b97e8058a02/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_unwindbound1.c[525,538] [2023-12-02 21:03:16,180 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:03:16,195 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:03:16,195 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16 WrapperNode [2023-12-02 21:03:16,195 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:03:16,196 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:16,196 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:03:16,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:03:16,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,211 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,228 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 43 [2023-12-02 21:03:16,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:03:16,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:03:16,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:03:16,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:03:16,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,238 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,240 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,243 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,246 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,247 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,247 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,249 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:03:16,250 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:03:16,250 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:03:16,250 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:03:16,251 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:03:16,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:03:16,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:03:16,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:03:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:03:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:03:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:03:16,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:03:16,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-02 21:03:16,310 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-02 21:03:16,367 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:03:16,369 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:03:16,474 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:03:16,498 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:03:16,498 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 21:03:16,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:16 BoogieIcfgContainer [2023-12-02 21:03:16,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:03:16,501 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:03:16,501 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:03:16,509 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:03:16,509 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:16" (1/1) ... [2023-12-02 21:03:16,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:03:16,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:16,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-12-02 21:03:16,563 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-12-02 21:03:16,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:03:16,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:16,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:16,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:16,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:03:16,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:16,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:16,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2023-12-02 21:03:16,726 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2023-12-02 21:03:16,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:03:16,727 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:16,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:16,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:16,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:03:16,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:16,839 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:16,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 16 states and 18 transitions. [2023-12-02 21:03:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2023-12-02 21:03:16,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:03:16,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:16,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:16,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:03:16,918 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:16,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:17,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 21 states and 27 transitions. [2023-12-02 21:03:17,230 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2023-12-02 21:03:17,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:03:17,232 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:17,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:17,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:03:17,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:17,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:17,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2023-12-02 21:03:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2023-12-02 21:03:17,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:03:17,595 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:17,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:17,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:03:17,623 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:17,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:18,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:18,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 25 states and 30 transitions. [2023-12-02 21:03:18,403 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2023-12-02 21:03:18,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-12-02 21:03:18,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:03:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:03:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:03:18,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:03:18,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:03:18,834 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:03:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:03:19,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 18 states and 20 transitions. [2023-12-02 21:03:19,684 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2023-12-02 21:03:19,685 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-02 21:03:19,685 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2023-12-02 21:03:19,694 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-02 21:03:19,750 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:03:19,753 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-02 21:03:19,753 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 02.12 09:03:19 ImpRootNode [2023-12-02 21:03:19,753 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-02 21:03:19,754 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-02 21:03:19,754 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-02 21:03:19,754 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-02 21:03:19,755 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:03:16" (3/4) ... [2023-12-02 21:03:19,756 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-02 21:03:19,759 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-02 21:03:19,761 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-12-02 21:03:19,762 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-12-02 21:03:19,762 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-02 21:03:19,762 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-02 21:03:19,833 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-02 21:03:19,833 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-02 21:03:19,834 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-02 21:03:19,834 INFO L158 Benchmark]: Toolchain (without parser) took 3877.45ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 94.9MB in the beginning and 129.8MB in the end (delta: -34.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:03:19,835 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:03:19,835 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.06ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 84.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:03:19,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.68ms. Allocated memory is still 140.5MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-02 21:03:19,837 INFO L158 Benchmark]: Boogie Preprocessor took 19.68ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 934.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:03:19,837 INFO L158 Benchmark]: RCFGBuilder took 250.09ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 71.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:03:19,838 INFO L158 Benchmark]: CodeCheck took 3252.83ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 71.0MB in the beginning and 133.9MB in the end (delta: -62.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:03:19,838 INFO L158 Benchmark]: Witness Printer took 79.67ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 129.8MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-02 21:03:19,840 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 161 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 45 mSDsluCounter, 130 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 112 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 325 IncrementalHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 112 mSolverCounterUnsat, 94 mSDtfsCounter, 325 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 575 GetRequests, 493 SyntacticMatches, 8 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1903 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 57 ConstructedInterpolants, 3 QuantifiedInterpolants, 236 SizeOfPredicates, 6 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 6/11 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 17]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 56.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.06ms. Allocated memory is still 140.5MB. Free memory was 94.9MB in the beginning and 84.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.68ms. Allocated memory is still 140.5MB. Free memory was 84.4MB in the beginning and 82.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.68ms. Allocated memory is still 140.5MB. Free memory was 82.9MB in the beginning and 81.9MB in the end (delta: 934.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 250.09ms. Allocated memory is still 140.5MB. Free memory was 81.9MB in the beginning and 71.0MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 3252.83ms. Allocated memory was 140.5MB in the beginning and 172.0MB in the end (delta: 31.5MB). Free memory was 71.0MB in the beginning and 133.9MB in the end (delta: -62.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 79.67ms. Allocated memory is still 172.0MB. Free memory was 133.9MB in the beginning and 129.8MB 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! [2023-12-02 21:03:19,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b3b88d52-2d4d-468c-aabf-9b97e8058a02/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