./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI --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 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 ......................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:03:02,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:03:02,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:03:02,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:03:02,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:03:02,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:03:02,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:03:02,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:03:02,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:03:02,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:03:02,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:03:02,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:03:02,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:03:02,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:03:02,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:03:02,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:03:02,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:03:02,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:03:02,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:03:02,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:03:02,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:03:02,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:03:02,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:03:02,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:03:02,411 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:03:02,418 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:03:02,418 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:03:02,420 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:03:02,420 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:03:02,421 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:03:02,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:03:02,424 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:03:02,426 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:03:02,427 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:03:02,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:03:02,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:03:02,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:03:02,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:03:02,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:03:02,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:03:02,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:03:02,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 03:03:02,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:03:02,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:03:02,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 03:03:02,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 03:03:02,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:03:02,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:03:02,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:03:02,485 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:03:02,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:03:02,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:03:02,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:03:02,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 03:03:02,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:03:02,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 03:03:02,488 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:03:02,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 03:03:02,488 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:03:02,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 03:03:02,489 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:03:02,489 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:03:02,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:03:02,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:03:02,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:03:02,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:03:02,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 03:03:02,490 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:03:02,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:03:02,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 03:03:02,491 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_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27149dc6702b40ed508ca85da6c2aa8aa33688ab27cc92cc19b394120cb70fd9 [2021-10-29 03:03:02,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:03:02,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:03:02,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:03:02,789 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:03:02,790 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:03:02,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/recursive-simple/id2_b2_o3.c [2021-10-29 03:03:02,877 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/data/d393c3f5d/6b32f28540cf4cf6a1989a54af6bac64/FLAG8b9aa426c [2021-10-29 03:03:03,380 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:03:03,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/sv-benchmarks/c/recursive-simple/id2_b2_o3.c [2021-10-29 03:03:03,387 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/data/d393c3f5d/6b32f28540cf4cf6a1989a54af6bac64/FLAG8b9aa426c [2021-10-29 03:03:03,780 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/data/d393c3f5d/6b32f28540cf4cf6a1989a54af6bac64 [2021-10-29 03:03:03,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:03:03,783 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:03:03,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:03:03,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:03:03,790 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:03:03,791 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:03:03" (1/1) ... [2021-10-29 03:03:03,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6080fce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:03, skipping insertion in model container [2021-10-29 03:03:03,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:03:03" (1/1) ... [2021-10-29 03:03:03,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:03:03,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:03:04,013 WARN L228 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_8445126a-16be-4f8f-82a4-3a0d51c8cd34/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2021-10-29 03:03:04,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:03:04,038 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:03:04,068 WARN L228 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_8445126a-16be-4f8f-82a4-3a0d51c8cd34/sv-benchmarks/c/recursive-simple/id2_b2_o3.c[771,784] [2021-10-29 03:03:04,068 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:03:04,084 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:03:04,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04 WrapperNode [2021-10-29 03:03:04,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:03:04,086 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:03:04,086 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:03:04,088 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:03:04,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:03:04,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:03:04,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:03:04,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:03:04,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:03:04,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:03:04,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:03:04,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:03:04,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:03:04,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:03:04,202 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:03:04,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:03:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 03:03:04,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 03:03:04,261 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-10-29 03:03:04,261 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-10-29 03:03:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:03:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:03:04,262 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-29 03:03:04,262 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-29 03:03:04,557 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:03:04,557 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 03:03:04,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:03:04 BoogieIcfgContainer [2021-10-29 03:03:04,559 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:03:04,560 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:03:04,560 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:03:04,588 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:03:04,588 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:03:04" (1/1) ... [2021-10-29 03:03:04,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:03:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:04,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-10-29 03:03:04,645 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-10-29 03:03:04,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:03:04,650 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:03:04,651 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:03:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:03:04,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:03:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:04,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-10-29 03:03:04,910 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-10-29 03:03:04,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 03:03:04,911 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:03:04,912 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:03:04,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:03:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:03:05,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:05,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-10-29 03:03:05,474 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-10-29 03:03:05,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 03:03:05,475 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:03:05,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:03:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:03:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-29 03:03:06,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:06,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2021-10-29 03:03:06,491 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-10-29 03:03:06,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 03:03:06,492 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:03:06,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:03:06,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:03:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-10-29 03:03:07,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:07,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 43 states and 52 transitions. [2021-10-29 03:03:07,127 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2021-10-29 03:03:07,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 03:03:07,129 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:03:07,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:03:07,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:03:07,459 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-10-29 03:03:08,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:03:08,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 34 states and 38 transitions. [2021-10-29 03:03:08,126 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 38 transitions. [2021-10-29 03:03:08,127 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 03:03:08,127 WARN L424 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2021-10-29 03:03:08,133 INFO L759 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-10-29 03:03:08,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:03:08 ImpRootNode [2021-10-29 03:03:08,224 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:03:08,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:03:08,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:03:08,225 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:03:08,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:03:04" (3/4) ... [2021-10-29 03:03:08,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 03:03:08,233 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-10-29 03:03:08,234 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-10-29 03:03:08,243 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-10-29 03:03:08,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-29 03:03:08,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:03:08,244 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 03:03:08,303 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:03:08,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:03:08,305 INFO L168 Benchmark]: Toolchain (without parser) took 4520.50 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 77.3 MB in the beginning and 50.2 MB in the end (delta: 27.1 MB). Peak memory consumption was 50.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,305 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 109.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:03:08,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.92 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 77.0 MB in the beginning and 106.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,306 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 132.1 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,307 INFO L168 Benchmark]: Boogie Preprocessor took 39.43 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 104.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:03:08,307 INFO L168 Benchmark]: RCFGBuilder took 397.87 ms. Allocated memory is still 132.1 MB. Free memory was 104.6 MB in the beginning and 93.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,308 INFO L168 Benchmark]: CodeCheck took 3663.78 ms. Allocated memory is still 132.1 MB. Free memory was 93.1 MB in the beginning and 52.3 MB in the end (delta: 40.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,308 INFO L168 Benchmark]: Witness Printer took 78.59 ms. Allocated memory is still 132.1 MB. Free memory was 52.3 MB in the beginning and 50.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:03:08,311 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 400 SDtfs, 140 SDslu, 216 SDs, 0 SdLazy, 874 SolverSat, 446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 744 GetRequests, 657 SyntacticMatches, 15 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1462 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 105 NumberOfCodeBlocks, 105 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 356 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 19/34 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 27]: 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 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 109.1 MB. Free memory is still 64.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.92 ms. Allocated memory was 109.1 MB in the beginning and 132.1 MB in the end (delta: 23.1 MB). Free memory was 77.0 MB in the beginning and 106.7 MB in the end (delta: -29.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.76 ms. Allocated memory is still 132.1 MB. Free memory was 106.7 MB in the beginning and 105.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.43 ms. Allocated memory is still 132.1 MB. Free memory was 105.6 MB in the beginning and 104.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 397.87 ms. Allocated memory is still 132.1 MB. Free memory was 104.6 MB in the beginning and 93.6 MB in the end (delta: 11.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * CodeCheck took 3663.78 ms. Allocated memory is still 132.1 MB. Free memory was 93.1 MB in the beginning and 52.3 MB in the end (delta: 40.8 MB). Peak memory consumption was 43.0 MB. Max. memory is 16.1 GB. * Witness Printer took 78.59 ms. Allocated memory is still 132.1 MB. Free memory was 52.3 MB in the beginning and 50.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be correct! [2021-10-29 03:03:08,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8445126a-16be-4f8f-82a4-3a0d51c8cd34/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...