./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN --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 bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 06:17:05,386 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 06:17:05,389 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 06:17:05,432 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 06:17:05,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 06:17:05,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 06:17:05,438 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 06:17:05,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 06:17:05,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 06:17:05,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 06:17:05,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 06:17:05,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 06:17:05,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 06:17:05,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 06:17:05,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 06:17:05,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 06:17:05,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 06:17:05,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 06:17:05,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 06:17:05,478 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 06:17:05,480 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 06:17:05,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 06:17:05,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 06:17:05,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 06:17:05,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 06:17:05,496 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 06:17:05,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 06:17:05,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 06:17:05,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 06:17:05,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 06:17:05,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 06:17:05,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 06:17:05,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 06:17:05,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 06:17:05,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 06:17:05,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 06:17:05,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 06:17:05,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 06:17:05,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 06:17:05,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 06:17:05,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 06:17:05,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-21 06:17:05,565 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 06:17:05,565 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 06:17:05,567 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 06:17:05,567 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-21 06:17:05,568 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 06:17:05,568 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 06:17:05,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 06:17:05,568 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 06:17:05,575 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 06:17:05,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 06:17:05,576 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 06:17:05,576 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 06:17:05,577 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 06:17:05,577 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 06:17:05,577 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 06:17:05,578 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 06:17:05,578 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 06:17:05,578 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 06:17:05,578 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 06:17:05,578 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 06:17:05,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 06:17:05,579 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:17:05,579 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 06:17:05,579 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 06:17:05,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 06:17:05,580 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 06:17:05,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 06:17:05,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 06:17:05,581 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_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfa501ca93fc9b0e6d760bbe690b8b09cdd28cd292bfa547a39097dc8f6d3704 [2021-11-21 06:17:05,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 06:17:05,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 06:17:05,926 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 06:17:05,927 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 06:17:05,928 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 06:17:05,930 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2021-11-21 06:17:06,012 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/data/251d6d2d8/808fdf3d87ef4114a13ff226f1de6420/FLAG11398759c [2021-11-21 06:17:06,600 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 06:17:06,600 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/sv-benchmarks/c/recursive-simple/id2_b3_o5.c [2021-11-21 06:17:06,611 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/data/251d6d2d8/808fdf3d87ef4114a13ff226f1de6420/FLAG11398759c [2021-11-21 06:17:07,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/data/251d6d2d8/808fdf3d87ef4114a13ff226f1de6420 [2021-11-21 06:17:07,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 06:17:07,006 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 06:17:07,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 06:17:07,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 06:17:07,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 06:17:07,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dcd0576 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07, skipping insertion in model container [2021-11-21 06:17:07,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 06:17:07,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 06:17:07,172 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_1edfef34-ac43-4d2e-bbbe-547c5d854578/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2021-11-21 06:17:07,175 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:17:07,184 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 06:17:07,197 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_1edfef34-ac43-4d2e-bbbe-547c5d854578/sv-benchmarks/c/recursive-simple/id2_b3_o5.c[771,784] [2021-11-21 06:17:07,198 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 06:17:07,211 INFO L208 MainTranslator]: Completed translation [2021-11-21 06:17:07,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07 WrapperNode [2021-11-21 06:17:07,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 06:17:07,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 06:17:07,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 06:17:07,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 06:17:07,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,242 INFO L137 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-21 06:17:07,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 06:17:07,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 06:17:07,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 06:17:07,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 06:17:07,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,255 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 06:17:07,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 06:17:07,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 06:17:07,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 06:17:07,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,289 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 06:17:07,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 06:17:07,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 06:17:07,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 06:17:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 06:17:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 06:17:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-11-21 06:17:07,367 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-11-21 06:17:07,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 06:17:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 06:17:07,368 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-21 06:17:07,368 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-21 06:17:07,425 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 06:17:07,427 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 06:17:07,529 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 06:17:07,554 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 06:17:07,555 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-21 06:17:07,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:17:07 BoogieIcfgContainer [2021-11-21 06:17:07,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 06:17:07,558 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 06:17:07,559 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 06:17:07,584 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 06:17:07,585 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:17:07" (1/1) ... [2021-11-21 06:17:07,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 06:17:07,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-11-21 06:17:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-21 06:17:07,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 06:17:07,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:07,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:07,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:07,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:17:08,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 24 states and 28 transitions. [2021-11-21 06:17:08,067 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2021-11-21 06:17:08,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-21 06:17:08,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:08,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:08,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 06:17:08,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:08,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-21 06:17:08,649 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-21 06:17:08,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 06:17:08,651 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:08,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 06:17:09,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:09,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 39 states and 46 transitions. [2021-11-21 06:17:09,566 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 46 transitions. [2021-11-21 06:17:09,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 06:17:09,568 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:09,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:09,959 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 06:17:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:10,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 47 states and 56 transitions. [2021-11-21 06:17:10,813 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2021-11-21 06:17:10,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 06:17:10,815 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:10,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:10,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 06:17:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 51 states and 61 transitions. [2021-11-21 06:17:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2021-11-21 06:17:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 06:17:12,462 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 06:17:12,463 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 06:17:12,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 06:17:12,802 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-11-21 06:17:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 06:17:13,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 49 states and 59 transitions. [2021-11-21 06:17:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2021-11-21 06:17:13,958 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 06:17:13,959 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2021-11-21 06:17:13,983 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-21 06:17:14,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:17:14 ImpRootNode [2021-11-21 06:17:14,120 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 06:17:14,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 06:17:14,121 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 06:17:14,121 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 06:17:14,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:17:07" (3/4) ... [2021-11-21 06:17:14,124 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 06:17:14,131 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-11-21 06:17:14,132 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-11-21 06:17:14,136 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-21 06:17:14,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-21 06:17:14,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 06:17:14,137 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 06:17:14,178 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 06:17:14,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 06:17:14,179 INFO L158 Benchmark]: Toolchain (without parser) took 7173.10ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 70.9MB in the beginning and 100.5MB in the end (delta: -29.6MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2021-11-21 06:17:14,180 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 100.7MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:17:14,181 INFO L158 Benchmark]: CACSL2BoogieTranslator took 203.02ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 61.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 06:17:14,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.19ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 59.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:17:14,182 INFO L158 Benchmark]: Boogie Preprocessor took 35.59ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 58.6MB in the end (delta: 885.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 06:17:14,183 INFO L158 Benchmark]: RCFGBuilder took 277.37ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 49.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 06:17:14,183 INFO L158 Benchmark]: CodeCheck took 6561.57ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 49.0MB in the beginning and 103.5MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 06:17:14,184 INFO L158 Benchmark]: Witness Printer took 58.06ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 100.5MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 06:17:14,188 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: 6.4s, OverallIterations: 7, 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, 212 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 70 mSDsluCounter, 251 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 236 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 472 IncrementalHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 236 mSolverCounterUnsat, 133 mSDtfsCounter, 472 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 989 GetRequests, 868 SyntacticMatches, 7 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4241 ImplicationChecksByTransitivity, 4.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 144 NumberOfCodeBlocks, 144 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 138 ConstructedInterpolants, 0 QuantifiedInterpolants, 446 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 49/66 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 0.25ms. Allocated memory is still 100.7MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 203.02ms. Allocated memory is still 100.7MB. Free memory was 70.6MB in the beginning and 61.0MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.19ms. Allocated memory is still 100.7MB. Free memory was 61.0MB in the beginning and 59.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.59ms. Allocated memory is still 100.7MB. Free memory was 59.5MB in the beginning and 58.6MB in the end (delta: 885.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 277.37ms. Allocated memory is still 100.7MB. Free memory was 58.6MB in the beginning and 49.0MB in the end (delta: 9.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 6561.57ms. Allocated memory was 100.7MB in the beginning and 151.0MB in the end (delta: 50.3MB). Free memory was 49.0MB in the beginning and 103.5MB in the end (delta: -54.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 58.06ms. Allocated memory is still 151.0MB. Free memory was 103.5MB in the beginning and 100.5MB 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! [2021-11-21 06:17:14,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1edfef34-ac43-4d2e-bbbe-547c5d854578/bin/ukojak-vF6T2TMglN/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