./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --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 0a70f1205afb9cca148fa8c17f899d7361834a55786fb03fe89056a7c6fb47c5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:10:33,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:10:33,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:10:33,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:10:33,328 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:10:33,332 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:10:33,334 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:10:33,338 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:10:33,341 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:10:33,347 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:10:33,348 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:10:33,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:10:33,350 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:10:33,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:10:33,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:10:33,359 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:10:33,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:10:33,362 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:10:33,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:10:33,371 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:10:33,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:10:33,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:10:33,378 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:10:33,379 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:10:33,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:10:33,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:10:33,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:10:33,390 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:10:33,391 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:10:33,392 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:10:33,392 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:10:33,393 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:10:33,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:10:33,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:10:33,398 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:10:33,398 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:10:33,399 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:10:33,399 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:10:33,399 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:10:33,400 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:10:33,401 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:10:33,401 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:10:33,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:10:33,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:10:33,445 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:10:33,445 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:10:33,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:10:33,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:10:33,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:10:33,447 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:10:33,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:10:33,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:10:33,454 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:10:33,454 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:10:33,454 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:10:33,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:10:33,455 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:10:33,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:10:33,455 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:10:33,455 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:10:33,456 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:10:33,456 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:10:33,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:10:33,456 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:10:33,456 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:10:33,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:10:33,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:10:33,457 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:10:33,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:10:33,457 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:10:33,457 INFO L138 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_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a70f1205afb9cca148fa8c17f899d7361834a55786fb03fe89056a7c6fb47c5 [2021-11-23 01:10:33,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:10:33,789 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:10:33,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:10:33,793 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:10:33,794 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:10:33,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c [2021-11-23 01:10:33,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/data/782ebff7a/13c2eab19cd246eeba2bf9bb214a5043/FLAG25d158479 [2021-11-23 01:10:34,323 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:10:34,323 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c [2021-11-23 01:10:34,329 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/data/782ebff7a/13c2eab19cd246eeba2bf9bb214a5043/FLAG25d158479 [2021-11-23 01:10:34,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/data/782ebff7a/13c2eab19cd246eeba2bf9bb214a5043 [2021-11-23 01:10:34,709 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:10:34,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:10:34,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:10:34,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:10:34,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:10:34,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:34,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23fdbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34, skipping insertion in model container [2021-11-23 01:10:34,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:34,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:10:34,746 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:10:34,924 WARN L230 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_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c[520,533] [2021-11-23 01:10:34,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:10:34,958 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:10:34,970 WARN L230 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_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_valuebound1.c[520,533] [2021-11-23 01:10:34,976 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:10:34,989 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:10:34,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34 WrapperNode [2021-11-23 01:10:34,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:10:34,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:10:34,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:10:34,992 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:10:34,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,021 INFO L137 Inliner]: procedures = 14, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 41 [2021-11-23 01:10:35,021 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:10:35,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:10:35,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:10:35,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:10:35,029 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:10:35,040 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:10:35,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:10:35,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:10:35,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:10:34" (1/1) ... [2021-11-23 01:10:35,049 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:10:35,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:10:35,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:10:35,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:10:35,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:10:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:10:35,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:10:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:10:35,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 01:10:35,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 01:10:35,199 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:10:35,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:10:35,300 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:10:35,327 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:10:35,327 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 01:10:35,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:10:35 BoogieIcfgContainer [2021-11-23 01:10:35,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:10:35,331 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:10:35,331 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:10:35,341 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:10:35,341 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:10:35" (1/1) ... [2021-11-23 01:10:35,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:10:35,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:35,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 17 states and 24 transitions. [2021-11-23 01:10:35,408 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 24 transitions. [2021-11-23 01:10:35,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:10:35,409 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:35,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:35,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:35,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:10:35,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:35,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 33 transitions. [2021-11-23 01:10:35,771 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 33 transitions. [2021-11-23 01:10:35,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:10:35,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:35,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:35,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:10:35,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:36,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:10:36,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:36,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 24 states and 40 transitions. [2021-11-23 01:10:36,210 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 40 transitions. [2021-11-23 01:10:36,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:10:36,210 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:36,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:36,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 01:10:36,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:36,357 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 01:10:36,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:36,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 45 transitions. [2021-11-23 01:10:36,476 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 45 transitions. [2021-11-23 01:10:36,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:10:36,478 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:36,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:36,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:10:36,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-23 01:10:36,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:37,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 28 states and 47 transitions. [2021-11-23 01:10:37,044 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2021-11-23 01:10:37,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:10:37,046 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:37,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:37,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:37,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:10:37,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:37,218 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:10:37,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:37,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 31 states and 52 transitions. [2021-11-23 01:10:37,425 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 52 transitions. [2021-11-23 01:10:37,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:10:37,427 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:37,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:37,471 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:10:37,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:37,589 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 10 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 01:10:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:37,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 33 states and 55 transitions. [2021-11-23 01:10:37,805 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:10:37,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 01:10:37,806 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:37,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:37,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-23 01:10:37,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:10:37,994 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 01:10:38,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:10:38,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 34 states and 57 transitions. [2021-11-23 01:10:38,303 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2021-11-23 01:10:38,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 01:10:38,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:10:38,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:10:38,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:10:38,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:10:38,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:55,144 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-23 01:11:55,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:55,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 56 transitions. [2021-11-23 01:11:55,444 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 56 transitions. [2021-11-23 01:11:55,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:11:55,446 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:55,446 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:55,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:11:55,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:55,626 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:11:55,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:55,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 35 states and 60 transitions. [2021-11-23 01:11:55,904 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 60 transitions. [2021-11-23 01:11:55,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:11:55,906 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:55,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:55,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:55,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:11:55,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:56,011 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 23 proven. 7 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-11-23 01:11:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:56,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 36 states and 61 transitions. [2021-11-23 01:11:56,112 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 61 transitions. [2021-11-23 01:11:56,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 01:11:56,114 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:56,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:56,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:56,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 01:11:56,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:56,422 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 16 proven. 5 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-11-23 01:11:57,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:57,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 26 states and 35 transitions. [2021-11-23 01:11:57,101 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2021-11-23 01:11:57,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 01:11:57,103 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:11:57,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:11:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:11:57,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 01:11:57,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 01:11:57,249 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 27 proven. 7 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2021-11-23 01:11:57,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:11:57,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 20 states and 28 transitions. [2021-11-23 01:11:57,504 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2021-11-23 01:11:57,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 01:11:57,505 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 13 iterations. [2021-11-23 01:11:57,514 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-23 01:11:57,725 INFO L560 CodeCheckObserver]: Invariant with dag size 14 [2021-11-23 01:11:57,735 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-23 01:11:57,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:11:57 ImpRootNode [2021-11-23 01:11:57,735 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:11:57,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:11:57,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:11:57,736 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:11:57,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:10:35" (3/4) ... [2021-11-23 01:11:57,740 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 01:11:57,745 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2021-11-23 01:11:57,749 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-23 01:11:57,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-11-23 01:11:57,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-23 01:11:57,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 01:11:57,797 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:11:57,797 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:11:57,798 INFO L158 Benchmark]: Toolchain (without parser) took 83085.64ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 57.3MB in the beginning and 50.9MB in the end (delta: 6.4MB). Peak memory consumption was 67.7MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,799 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:11:57,799 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.27ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 57.1MB in the beginning and 130.1MB in the end (delta: -72.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,800 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 153.1MB. Free memory was 130.1MB in the beginning and 128.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,801 INFO L158 Benchmark]: Boogie Preprocessor took 17.55ms. Allocated memory is still 153.1MB. Free memory was 128.3MB in the beginning and 127.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,801 INFO L158 Benchmark]: RCFGBuilder took 289.65ms. Allocated memory is still 153.1MB. Free memory was 127.1MB in the beginning and 117.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,802 INFO L158 Benchmark]: CodeCheck took 82404.46ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 54.1MB in the end (delta: 63.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,802 INFO L158 Benchmark]: Witness Printer took 61.28ms. Allocated memory is still 153.1MB. Free memory was 54.1MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:11:57,806 INFO L339 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 82.1s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 608 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 462 SdHoareTripleChecker+Invalid, 2.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 192 mSDsCounter, 675 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1654 IncrementalHoareTripleChecker+Invalid, 2329 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 675 mSolverCounterUnsat, 270 mSDtfsCounter, 1654 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2578 GetRequests, 2440 SyntacticMatches, 50 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3143 ImplicationChecksByTransitivity, 79.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 78.4s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 309 ConstructedInterpolants, 0 QuantifiedInterpolants, 987 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1003 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 431/480 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: 14]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: s == 2 + 2 * a || !(t == 1 + 2 * a && 2 == 2 * a) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 90.2MB. Free memory was 60.0MB in the beginning and 60.0MB in the end (delta: 25.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.27ms. Allocated memory was 90.2MB in the beginning and 153.1MB in the end (delta: 62.9MB). Free memory was 57.1MB in the beginning and 130.1MB in the end (delta: -72.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 153.1MB. Free memory was 130.1MB in the beginning and 128.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.55ms. Allocated memory is still 153.1MB. Free memory was 128.3MB in the beginning and 127.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.65ms. Allocated memory is still 153.1MB. Free memory was 127.1MB in the beginning and 117.5MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 82404.46ms. Allocated memory is still 153.1MB. Free memory was 117.5MB in the beginning and 54.1MB in the end (delta: 63.4MB). Peak memory consumption was 66.6MB. Max. memory is 16.1GB. * Witness Printer took 61.28ms. Allocated memory is still 153.1MB. Free memory was 54.1MB in the beginning and 50.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-23 01:11:57,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4a3dcfbd-a0d2-414c-a698-5f04e30a2f7b/bin/ukojak-LBtLqBUTdQ/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