./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/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_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/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_842e1418-808d-472d-bb94-c2267b100ee6/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 b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:11:09,551 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:11:09,675 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:11:09,683 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:11:09,684 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:11:09,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:11:09,724 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:11:09,725 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:11:09,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:11:09,731 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:11:09,732 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:11:09,733 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:11:09,733 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:11:09,735 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:11:09,735 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:11:09,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:11:09,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:11:09,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:11:09,737 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:11:09,737 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:11:09,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:11:09,738 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:11:09,739 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:11:09,739 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:11:09,740 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:11:09,741 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:11:09,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:09,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:11:09,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:11:09,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:11:09,744 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:11:09,744 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:11:09,744 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:11:09,745 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_842e1418-808d-472d-bb94-c2267b100ee6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8bc9de3d9f51bc5c6470e24c35cb3edba79759c76c5cfb6c2a32518b5b17fdc [2023-11-19 03:11:10,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:11:10,123 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:11:10,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:11:10,129 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:11:10,130 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:11:10,131 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-11-19 03:11:13,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:11:13,547 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:11:13,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i [2023-11-19 03:11:13,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/data/2b230f025/24f9d9a031b44be2bf49f47ff081b871/FLAG107b49bc5 [2023-11-19 03:11:13,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/data/2b230f025/24f9d9a031b44be2bf49f47ff081b871 [2023-11-19 03:11:13,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:11:13,592 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:11:13,596 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:13,597 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:11:13,603 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:11:13,603 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:13,606 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cfac3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13, skipping insertion in model container [2023-11-19 03:11:13,606 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:13,650 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:11:13,819 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_842e1418-808d-472d-bb94-c2267b100ee6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-11-19 03:11:13,859 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:13,872 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:11:13,886 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_842e1418-808d-472d-bb94-c2267b100ee6/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-1loop_file-33.i[915,928] [2023-11-19 03:11:13,907 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:11:13,926 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:11:13,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13 WrapperNode [2023-11-19 03:11:13,927 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:11:13,928 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:13,928 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:11:13,928 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:11:13,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:13,947 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:13,983 INFO L138 Inliner]: procedures = 26, calls = 21, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2023-11-19 03:11:13,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:11:13,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:11:13,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:11:13,985 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:11:13,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:13,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,005 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,006 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,018 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,020 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:11:14,027 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:11:14,027 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:11:14,027 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:11:14,028 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:11:13" (1/1) ... [2023-11-19 03:11:14,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:11:14,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:11:14,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:11:14,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:11:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:11:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:11:14,119 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:11:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:11:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:11:14,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:11:14,259 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:11:14,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:11:14,587 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:11:14,785 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:11:14,785 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 03:11:14,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:14 BoogieIcfgContainer [2023-11-19 03:11:14,795 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:11:14,796 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:11:14,797 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:11:14,808 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:11:14,809 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:14" (1/1) ... [2023-11-19 03:11:14,820 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:11:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 30 transitions. [2023-11-19 03:11:14,902 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 30 transitions. [2023-11-19 03:11:14,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:11:14,908 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:14,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:15,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 35 conjunts are in the unsatisfiable core [2023-11-19 03:11:15,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:19,361 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 12 proven. 12 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-11-19 03:11:19,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:19,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 39 states and 68 transitions. [2023-11-19 03:11:19,716 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 68 transitions. [2023-11-19 03:11:19,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-19 03:11:19,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:11:19,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:11:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:11:19,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:11:19,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:11:19,997 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-11-19 03:11:20,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:11:20,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 21 states and 29 transitions. [2023-11-19 03:11:20,832 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2023-11-19 03:11:20,833 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:11:20,833 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 3 iterations. [2023-11-19 03:11:20,842 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:11:20,937 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:20,941 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:20,942 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:11:20,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:11:20 ImpRootNode [2023-11-19 03:11:20,942 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:11:20,943 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:11:20,943 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:11:20,943 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:11:20,944 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:11:14" (3/4) ... [2023-11-19 03:11:20,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:11:20,950 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-11-19 03:11:20,957 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2023-11-19 03:11:20,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2023-11-19 03:11:20,958 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 03:11:20,959 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-19 03:11:21,075 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:11:21,075 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:11:21,076 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:11:21,076 INFO L158 Benchmark]: Toolchain (without parser) took 7484.17ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 121.3MB in the beginning and 177.2MB in the end (delta: -55.9MB). Peak memory consumption was 19.9MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,077 INFO L158 Benchmark]: CDTParser took 0.74ms. Allocated memory is still 125.8MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:21,077 INFO L158 Benchmark]: CACSL2BoogieTranslator took 330.72ms. Allocated memory is still 161.5MB. Free memory was 120.9MB in the beginning and 108.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,078 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.72ms. Allocated memory is still 161.5MB. Free memory was 108.8MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,078 INFO L158 Benchmark]: Boogie Preprocessor took 41.94ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 105.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,079 INFO L158 Benchmark]: RCFGBuilder took 768.34ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 74.8MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,079 INFO L158 Benchmark]: CodeCheck took 6146.33ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 74.8MB in the beginning and 183.5MB in the end (delta: -108.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:11:21,080 INFO L158 Benchmark]: Witness Printer took 132.82ms. Allocated memory is still 234.9MB. Free memory was 183.5MB in the beginning and 177.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 03:11:21,082 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, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 126 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 86 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 71 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 333 IncrementalHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 71 mSolverCounterUnsat, 26 mSDtfsCounter, 333 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 856 GetRequests, 822 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 435 SizeOfPredicates, 15 NumberOfNonLiveVariables, 413 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 299/311 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: 19]: 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: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.74ms. Allocated memory is still 125.8MB. Free memory is still 73.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 330.72ms. Allocated memory is still 161.5MB. Free memory was 120.9MB in the beginning and 108.8MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.72ms. Allocated memory is still 161.5MB. Free memory was 108.8MB in the beginning and 106.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.94ms. Allocated memory is still 161.5MB. Free memory was 106.6MB in the beginning and 105.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 768.34ms. Allocated memory is still 161.5MB. Free memory was 105.0MB in the beginning and 74.8MB in the end (delta: 30.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * CodeCheck took 6146.33ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 74.8MB in the beginning and 183.5MB in the end (delta: -108.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 132.82ms. Allocated memory is still 234.9MB. Free memory was 183.5MB in the beginning and 177.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:11:21,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_842e1418-808d-472d-bb94-c2267b100ee6/bin/ukojak-verify-G8NBE6pJGL/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