./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.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_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/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_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/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_e1dc9d56-2130-4d41-b63e-56610fdbf287/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 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 23:19:01,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 23:19:01,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 23:19:01,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 23:19:01,201 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 23:19:01,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 23:19:01,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 23:19:01,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 23:19:01,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 23:19:01,212 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 23:19:01,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 23:19:01,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 23:19:01,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 23:19:01,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 23:19:01,222 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 23:19:01,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 23:19:01,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 23:19:01,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 23:19:01,231 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 23:19:01,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 23:19:01,237 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 23:19:01,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 23:19:01,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 23:19:01,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 23:19:01,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 23:19:01,249 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 23:19:01,250 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 23:19:01,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 23:19:01,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 23:19:01,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 23:19:01,255 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 23:19:01,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 23:19:01,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 23:19:01,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 23:19:01,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 23:19:01,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 23:19:01,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 23:19:01,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 23:19:01,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 23:19:01,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 23:19:01,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 23:19:01,274 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-22 23:19:01,330 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 23:19:01,341 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 23:19:01,343 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-22 23:19:01,343 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-22 23:19:01,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 23:19:01,344 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 23:19:01,344 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 23:19:01,344 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 23:19:01,344 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 23:19:01,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 23:19:01,346 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 23:19:01,346 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 23:19:01,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 23:19:01,346 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-22 23:19:01,346 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-22 23:19:01,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 23:19:01,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:19:01,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 23:19:01,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 23:19:01,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 23:19:01,348 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-22 23:19:01,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 23:19:01,348 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 23:19:01,348 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_e1dc9d56-2130-4d41-b63e-56610fdbf287/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bd683bba4a6f80276f3e47665317b71beb0e1362c26cf1e7ce2f4cc203cd812 [2021-11-22 23:19:01,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 23:19:01,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 23:19:01,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 23:19:01,699 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 23:19:01,700 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 23:19:01,702 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-11-22 23:19:01,773 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/data/47a51e173/5c88a3f85fed43808d6085e97080f877/FLAG4ace7e902 [2021-11-22 23:19:02,545 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 23:19:02,546 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/sv-benchmarks/c/eca-rers2012/Problem14_label55.c [2021-11-22 23:19:02,582 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/data/47a51e173/5c88a3f85fed43808d6085e97080f877/FLAG4ace7e902 [2021-11-22 23:19:02,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/data/47a51e173/5c88a3f85fed43808d6085e97080f877 [2021-11-22 23:19:02,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 23:19:02,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 23:19:02,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 23:19:02,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 23:19:02,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 23:19:02,710 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:19:02" (1/1) ... [2021-11-22 23:19:02,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68686151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:02, skipping insertion in model container [2021-11-22 23:19:02,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 11:19:02" (1/1) ... [2021-11-22 23:19:02,722 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 23:19:02,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 23:19:03,072 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_e1dc9d56-2130-4d41-b63e-56610fdbf287/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-11-22 23:19:03,313 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:19:03,324 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 23:19:03,403 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_e1dc9d56-2130-4d41-b63e-56610fdbf287/sv-benchmarks/c/eca-rers2012/Problem14_label55.c[5831,5844] [2021-11-22 23:19:03,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 23:19:03,581 INFO L208 MainTranslator]: Completed translation [2021-11-22 23:19:03,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03 WrapperNode [2021-11-22 23:19:03,582 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 23:19:03,588 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 23:19:03,588 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 23:19:03,588 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 23:19:03,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,635 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,751 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 858 [2021-11-22 23:19:03,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 23:19:03,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 23:19:03,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 23:19:03,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 23:19:03,765 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 23:19:03,913 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 23:19:03,914 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 23:19:03,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 23:19:03,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 11:19:03" (1/1) ... [2021-11-22 23:19:03,927 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-22 23:19:03,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-22 23:19:03,994 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-22 23:19:04,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-22 23:19:04,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 23:19:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 23:19:04,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 23:19:04,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 23:19:04,200 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 23:19:04,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 23:19:05,665 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 23:19:09,414 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 23:19:09,417 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-22 23:19:09,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:19:09 BoogieIcfgContainer [2021-11-22 23:19:09,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 23:19:09,426 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-22 23:19:09,426 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-22 23:19:09,439 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-22 23:19:09,440 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:19:09" (1/1) ... [2021-11-22 23:19:09,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 23:19:09,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:09,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2021-11-22 23:19:09,587 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2021-11-22 23:19:09,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-22 23:19:09,590 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:09,592 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:09,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:09,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:10,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2021-11-22 23:19:10,014 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-11-22 23:19:10,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-22 23:19:10,015 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:10,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:10,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:10,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:11,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 19 states and 28 transitions. [2021-11-22 23:19:11,084 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2021-11-22 23:19:11,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-22 23:19:11,087 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:11,087 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:11,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:12,314 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:13,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:13,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 30 states and 53 transitions. [2021-11-22 23:19:13,911 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2021-11-22 23:19:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-22 23:19:13,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:13,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:14,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:15,906 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 39 states and 70 transitions. [2021-11-22 23:19:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 70 transitions. [2021-11-22 23:19:17,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 23:19:17,143 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:17,144 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:19,654 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:21,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 44 states and 82 transitions. [2021-11-22 23:19:21,580 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 82 transitions. [2021-11-22 23:19:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-22 23:19:21,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:21,582 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:22,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:23,257 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 23:19:24,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 49 states and 91 transitions. [2021-11-22 23:19:24,016 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 91 transitions. [2021-11-22 23:19:24,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-22 23:19:24,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-22 23:19:24,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 23:19:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 23:19:26,831 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-22 23:19:29,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-22 23:19:29,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 48 states and 95 transitions. [2021-11-22 23:19:29,730 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 95 transitions. [2021-11-22 23:19:29,731 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-22 23:19:29,732 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2021-11-22 23:19:29,750 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-22 23:19:30,692 INFO L560 CodeCheckObserver]: Invariant with dag size 40 [2021-11-22 23:19:30,707 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2021-11-22 23:19:30,708 INFO L560 CodeCheckObserver]: Invariant with dag size 43 [2021-11-22 23:19:30,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.11 11:19:30 ImpRootNode [2021-11-22 23:19:30,711 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-22 23:19:30,712 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 23:19:30,712 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 23:19:30,713 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 23:19:30,714 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 11:19:09" (3/4) ... [2021-11-22 23:19:30,718 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-22 23:19:30,757 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 223 nodes and edges [2021-11-22 23:19:30,760 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2021-11-22 23:19:30,764 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-22 23:19:30,767 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-22 23:19:31,022 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-22 23:19:31,022 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 23:19:31,024 INFO L158 Benchmark]: Toolchain (without parser) took 28320.17ms. Allocated memory was 123.7MB in the beginning and 1.1GB in the end (delta: 994.1MB). Free memory was 93.7MB in the beginning and 827.6MB in the end (delta: -733.9MB). Peak memory consumption was 260.8MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,024 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 123.7MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 23:19:31,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 882.16ms. Allocated memory is still 123.7MB. Free memory was 93.5MB in the beginning and 75.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 164.45ms. Allocated memory is still 123.7MB. Free memory was 75.5MB in the beginning and 65.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,025 INFO L158 Benchmark]: Boogie Preprocessor took 158.54ms. Allocated memory is still 123.7MB. Free memory was 65.4MB in the beginning and 59.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,027 INFO L158 Benchmark]: RCFGBuilder took 5511.05ms. Allocated memory was 123.7MB in the beginning and 520.1MB in the end (delta: 396.4MB). Free memory was 59.4MB in the beginning and 409.9MB in the end (delta: -350.5MB). Peak memory consumption was 166.8MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,028 INFO L158 Benchmark]: CodeCheck took 21285.75ms. Allocated memory was 520.1MB in the beginning and 1.1GB in the end (delta: 597.7MB). Free memory was 409.9MB in the beginning and 847.6MB in the end (delta: -437.6MB). Peak memory consumption was 157.9MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,028 INFO L158 Benchmark]: Witness Printer took 310.11ms. Allocated memory is still 1.1GB. Free memory was 847.6MB in the beginning and 827.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-22 23:19:31,030 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 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.2s, OverallIterations: 8, 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, 345 SdHoareTripleChecker+Valid, 11.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 309 mSDsluCounter, 331 SdHoareTripleChecker+Invalid, 10.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 202 mSDsCounter, 195 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 956 IncrementalHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 195 mSolverCounterUnsat, 129 mSDtfsCounter, 956 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1137 GetRequests, 972 SyntacticMatches, 41 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8666 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 5.6s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 1747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 3/161 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: 185]: 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: (((!(8 <= a15) && (((a12 <= 80 || !(a24 == 1)) || a15 <= 6) || !(7 == a21))) || ((((9 <= a21 || a21 == 8) || 7 == a21) || a12 <= 599999) && 8 < a15)) || (0 <= 49 + a12 && a15 == 8)) || (!((a24 == 1 && 7 <= a21) && a21 <= 7) && 49 + a12 <= 0) - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((9 <= a21 || a21 == 8) || 7 == a21) || a12 <= 599999) && 8 < a15) || (!(7 <= a21 && a21 <= 7) && a15 == 8)) || (0 <= 49 + a12 && a15 == 8)) || (((a15 <= 6 || a21 <= 6) || 8 <= a21) && !(8 <= a15))) || (!(a24 == 1) && a15 <= 8)) || (!(8 <= a15) && a12 <= 80) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 123.7MB. Free memory is still 77.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 882.16ms. Allocated memory is still 123.7MB. Free memory was 93.5MB in the beginning and 75.6MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 164.45ms. Allocated memory is still 123.7MB. Free memory was 75.5MB in the beginning and 65.4MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 158.54ms. Allocated memory is still 123.7MB. Free memory was 65.4MB in the beginning and 59.6MB in the end (delta: 5.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 5511.05ms. Allocated memory was 123.7MB in the beginning and 520.1MB in the end (delta: 396.4MB). Free memory was 59.4MB in the beginning and 409.9MB in the end (delta: -350.5MB). Peak memory consumption was 166.8MB. Max. memory is 16.1GB. * CodeCheck took 21285.75ms. Allocated memory was 520.1MB in the beginning and 1.1GB in the end (delta: 597.7MB). Free memory was 409.9MB in the beginning and 847.6MB in the end (delta: -437.6MB). Peak memory consumption was 157.9MB. Max. memory is 16.1GB. * Witness Printer took 310.11ms. Allocated memory is still 1.1GB. Free memory was 847.6MB in the beginning and 827.6MB in the end (delta: 19.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-22 23:19:31,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e1dc9d56-2130-4d41-b63e-56610fdbf287/bin/ukojak-LBtLqBUTdQ/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