./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/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 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:30:31,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:30:31,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:30:32,053 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:30:32,053 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:30:32,058 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:30:32,060 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:30:32,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:30:32,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:30:32,072 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:30:32,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:30:32,076 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:30:32,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:30:32,079 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:30:32,081 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:30:32,085 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:30:32,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:30:32,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:30:32,091 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:30:32,099 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:30:32,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:30:32,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:30:32,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:30:32,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:30:32,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:30:32,116 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:30:32,116 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:30:32,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:30:32,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:30:32,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:30:32,121 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:30:32,122 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:30:32,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:30:32,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:30:32,127 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:30:32,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:30:32,128 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:30:32,128 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:30:32,129 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:30:32,129 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:30:32,130 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:30:32,131 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-10-29 04:30:32,171 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:30:32,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:30:32,173 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:30:32,173 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-10-29 04:30:32,174 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 04:30:32,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 04:30:32,175 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:30:32,175 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:30:32,175 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:30:32,176 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:30:32,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:30:32,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:30:32,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:30:32,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:30:32,178 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:30:32,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:30:32,178 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:30:32,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:30:32,179 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 04:30:32,179 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 04:30:32,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:30:32,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:30:32,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:30:32,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:30:32,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:30:32,180 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 04:30:32,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:30:32,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:30:32,181 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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78daae7f2fbb1fbd12685beb952877b8686cc8bc3d2c7fcd55d0c5d2b019aa0d [2021-10-29 04:30:32,496 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:30:32,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:30:32,532 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:30:32,534 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:30:32,534 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:30:32,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/recursive-simple/id_o20.c [2021-10-29 04:30:32,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/data/e24eeedc0/48b7e463461c4390bc4d5eaa0b24dcfc/FLAG1213f03a7 [2021-10-29 04:30:33,160 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:30:33,161 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/sv-benchmarks/c/recursive-simple/id_o20.c [2021-10-29 04:30:33,171 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/data/e24eeedc0/48b7e463461c4390bc4d5eaa0b24dcfc/FLAG1213f03a7 [2021-10-29 04:30:33,536 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/data/e24eeedc0/48b7e463461c4390bc4d5eaa0b24dcfc [2021-10-29 04:30:33,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:30:33,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:30:33,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:30:33,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:30:33,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:30:33,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,554 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c210dc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33, skipping insertion in model container [2021-10-29 04:30:33,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,562 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:30:33,575 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:30:33,768 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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-10-29 04:30:33,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:30:33,781 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:30:33,795 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_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-10-29 04:30:33,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:30:33,810 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:30:33,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33 WrapperNode [2021-10-29 04:30:33,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:30:33,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:30:33,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:30:33,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:30:33,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,845 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:30:33,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:30:33,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:30:33,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:30:33,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,856 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,862 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,864 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,869 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:30:33,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:30:33,874 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:30:33,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:30:33,875 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:30:33" (1/1) ... [2021-10-29 04:30:33,887 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 04:30:33,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 04:30:33,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 04:30:33,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 04:30:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:30:33,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:30:33,961 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:30:33,962 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-29 04:30:33,964 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-29 04:30:33,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:30:34,282 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:30:34,282 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-29 04:30:34,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:34 BoogieIcfgContainer [2021-10-29 04:30:34,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:30:34,286 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 04:30:34,286 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 04:30:34,297 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 04:30:34,297 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:34" (1/1) ... [2021-10-29 04:30:34,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:30:34,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:34,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-10-29 04:30:34,390 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-10-29 04:30:34,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 04:30:34,400 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:34,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:34,704 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 04:30:34,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:34,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2021-10-29 04:30:34,754 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-10-29 04:30:34,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 04:30:34,755 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:34,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:34,953 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 04:30:35,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:35,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 23 states and 27 transitions. [2021-10-29 04:30:35,263 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2021-10-29 04:30:35,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-10-29 04:30:35,265 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:35,266 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:35,482 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-29 04:30:35,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:35,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-10-29 04:30:35,928 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-10-29 04:30:35,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-29 04:30:35,929 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:35,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:36,209 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-29 04:30:36,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:36,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-10-29 04:30:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-10-29 04:30:36,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-29 04:30:36,819 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:36,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:36,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-10-29 04:30:37,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:37,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 38 states and 45 transitions. [2021-10-29 04:30:37,749 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2021-10-29 04:30:37,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-10-29 04:30:37,751 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:37,751 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-29 04:30:38,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 43 states and 51 transitions. [2021-10-29 04:30:38,858 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2021-10-29 04:30:38,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-10-29 04:30:38,860 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:38,861 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:39,177 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-10-29 04:30:39,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:39,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 48 states and 57 transitions. [2021-10-29 04:30:39,968 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 57 transitions. [2021-10-29 04:30:39,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-10-29 04:30:39,970 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:39,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:39,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:40,354 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-10-29 04:30:41,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:41,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 53 states and 63 transitions. [2021-10-29 04:30:41,314 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 63 transitions. [2021-10-29 04:30:41,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-10-29 04:30:41,316 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:41,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:41,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:41,755 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-10-29 04:30:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 58 states and 69 transitions. [2021-10-29 04:30:43,057 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2021-10-29 04:30:43,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-10-29 04:30:43,059 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:43,060 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-10-29 04:30:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 63 states and 75 transitions. [2021-10-29 04:30:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-10-29 04:30:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-10-29 04:30:44,660 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:44,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:45,118 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-10-29 04:30:46,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:46,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 68 states and 81 transitions. [2021-10-29 04:30:46,495 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 81 transitions. [2021-10-29 04:30:46,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-10-29 04:30:46,497 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:46,497 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:46,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-10-29 04:30:48,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 73 states and 87 transitions. [2021-10-29 04:30:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 87 transitions. [2021-10-29 04:30:48,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-10-29 04:30:48,696 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:48,696 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:48,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:49,345 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-10-29 04:30:51,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:51,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 78 states and 93 transitions. [2021-10-29 04:30:51,105 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 93 transitions. [2021-10-29 04:30:51,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-10-29 04:30:51,107 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:51,107 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:51,737 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-10-29 04:30:53,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:53,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 83 states and 99 transitions. [2021-10-29 04:30:53,632 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 99 transitions. [2021-10-29 04:30:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-10-29 04:30:53,634 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:53,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:53,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:54,253 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-10-29 04:30:56,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:56,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 88 states and 105 transitions. [2021-10-29 04:30:56,316 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2021-10-29 04:30:56,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-10-29 04:30:56,318 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:56,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:30:57,188 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-10-29 04:30:59,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:30:59,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 93 states and 111 transitions. [2021-10-29 04:30:59,359 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 111 transitions. [2021-10-29 04:30:59,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-10-29 04:30:59,361 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:30:59,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:30:59,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:31:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-10-29 04:31:02,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:31:02,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 98 states and 117 transitions. [2021-10-29 04:31:02,726 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 117 transitions. [2021-10-29 04:31:02,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-10-29 04:31:02,727 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:31:02,728 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:31:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:31:03,678 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-10-29 04:31:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:31:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 103 states and 123 transitions. [2021-10-29 04:31:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 123 transitions. [2021-10-29 04:31:06,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-10-29 04:31:06,430 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:31:06,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:31:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:31:07,471 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-10-29 04:31:10,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:31:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 108 states and 129 transitions. [2021-10-29 04:31:10,446 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-10-29 04:31:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-10-29 04:31:10,448 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:31:10,448 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:31:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:31:11,544 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-10-29 04:31:14,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 04:31:14,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 113 states and 135 transitions. [2021-10-29 04:31:14,855 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 135 transitions. [2021-10-29 04:31:14,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-10-29 04:31:14,857 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 04:31:14,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:31:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:31:15,056 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:31:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:31:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:31:15,591 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:31:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:31:17,049 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2021-10-29 04:31:17,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 04:31:17 ImpRootNode [2021-10-29 04:31:17,173 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 04:31:17,173 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:31:17,174 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:31:17,174 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:31:17,175 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:30:34" (3/4) ... [2021-10-29 04:31:17,177 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:31:17,416 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 04:31:17,417 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:31:17,419 INFO L168 Benchmark]: Toolchain (without parser) took 43874.18 ms. Allocated memory was 107.0 MB in the beginning and 343.9 MB in the end (delta: 237.0 MB). Free memory was 71.4 MB in the beginning and 234.5 MB in the end (delta: -163.1 MB). Peak memory consumption was 78.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,420 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:31:17,421 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.25 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 62.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,422 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.23 ms. Allocated memory is still 107.0 MB. Free memory was 62.0 MB in the beginning and 60.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:31:17,423 INFO L168 Benchmark]: Boogie Preprocessor took 26.34 ms. Allocated memory is still 107.0 MB. Free memory was 60.6 MB in the beginning and 59.7 MB in the end (delta: 880.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,424 INFO L168 Benchmark]: RCFGBuilder took 411.76 ms. Allocated memory is still 107.0 MB. Free memory was 59.7 MB in the beginning and 81.8 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,425 INFO L168 Benchmark]: CodeCheck took 42887.25 ms. Allocated memory was 107.0 MB in the beginning and 343.9 MB in the end (delta: 237.0 MB). Free memory was 81.4 MB in the beginning and 240.8 MB in the end (delta: -159.4 MB). Peak memory consumption was 79.0 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,427 INFO L168 Benchmark]: Witness Printer took 243.31 ms. Allocated memory is still 343.9 MB. Free memory was 240.8 MB in the beginning and 234.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-29 04:31:17,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 42.7s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 7340032 SDtfs, 3145724 SDslu, 5242872 SDs, 0 SdLazy, 27262936 SolverSat, 13631468 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7075 GetRequests, 6272 SyntacticMatches, 495 SemanticMatches, 308 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34910 ImplicationChecksByTransitivity, 35.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 5032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L12] unsigned int input = __VERIFIER_nondet_uint(); [L13] CALL, EXPR id(input) VAL [\old(x)=20] [L7] COND FALSE !(x==0) VAL [\old(x)=20, x=20] [L8] CALL, EXPR id(x-1) VAL [\old(x)=19] [L7] COND FALSE !(x==0) VAL [\old(x)=19, x=19] [L8] CALL, EXPR id(x-1) VAL [\old(x)=18] [L7] COND FALSE !(x==0) VAL [\old(x)=18, x=18] [L8] CALL, EXPR id(x-1) VAL [\old(x)=17] [L7] COND FALSE !(x==0) VAL [\old(x)=17, x=17] [L8] CALL, EXPR id(x-1) VAL [\old(x)=16] [L7] COND FALSE !(x==0) VAL [\old(x)=16, x=16] [L8] CALL, EXPR id(x-1) VAL [\old(x)=15] [L7] COND FALSE !(x==0) VAL [\old(x)=15, x=15] [L8] CALL, EXPR id(x-1) VAL [\old(x)=14] [L7] COND FALSE !(x==0) VAL [\old(x)=14, x=14] [L8] CALL, EXPR id(x-1) VAL [\old(x)=13] [L7] COND FALSE !(x==0) VAL [\old(x)=13, x=13] [L8] CALL, EXPR id(x-1) VAL [\old(x)=12] [L7] COND FALSE !(x==0) VAL [\old(x)=12, x=12] [L8] CALL, EXPR id(x-1) VAL [\old(x)=11] [L7] COND FALSE !(x==0) VAL [\old(x)=11, x=11] [L8] CALL, EXPR id(x-1) VAL [\old(x)=10] [L7] COND FALSE !(x==0) VAL [\old(x)=10, x=10] [L8] CALL, EXPR id(x-1) VAL [\old(x)=9] [L7] COND FALSE !(x==0) VAL [\old(x)=9, x=9] [L8] CALL, EXPR id(x-1) VAL [\old(x)=8] [L7] COND FALSE !(x==0) VAL [\old(x)=8, x=8] [L8] CALL, EXPR id(x-1) VAL [\old(x)=7] [L7] COND FALSE !(x==0) VAL [\old(x)=7, x=7] [L8] CALL, EXPR id(x-1) VAL [\old(x)=6] [L7] COND FALSE !(x==0) VAL [\old(x)=6, x=6] [L8] CALL, EXPR id(x-1) VAL [\old(x)=5] [L7] COND FALSE !(x==0) VAL [\old(x)=5, x=5] [L8] CALL, EXPR id(x-1) VAL [\old(x)=4] [L7] COND FALSE !(x==0) VAL [\old(x)=4, x=4] [L8] CALL, EXPR id(x-1) VAL [\old(x)=3] [L7] COND FALSE !(x==0) VAL [\old(x)=3, x=3] [L8] CALL, EXPR id(x-1) VAL [\old(x)=2] [L7] COND FALSE !(x==0) VAL [\old(x)=2, x=2] [L8] CALL, EXPR id(x-1) VAL [\old(x)=1] [L7] COND FALSE !(x==0) VAL [\old(x)=1, x=1] [L8] CALL, EXPR id(x-1) VAL [\old(x)=0] [L7] COND TRUE x==0 [L7] return 0; VAL [\old(x)=0, \result=0, x=0] [L8] RET, EXPR id(x-1) VAL [\old(x)=1, id(x-1)=0, x=1] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=2, id(x-1)=1, x=2] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=3, id(x-1)=2, x=3] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=4, id(x-1)=3, x=4] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=5, id(x-1)=4, x=5] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=6, id(x-1)=5, x=6] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=7, id(x-1)=6, x=7] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=8, id(x-1)=7, x=8] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=9, id(x-1)=8, x=9] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=10, id(x-1)=9, x=10] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=11, id(x-1)=10, x=11] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=12, id(x-1)=11, x=12] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=13, id(x-1)=12, x=13] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=14, id(x-1)=13, x=14] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=15, id(x-1)=14, x=15] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=16, id(x-1)=15, x=16] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=17, id(x-1)=16, x=17] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=18, id(x-1)=17, x=18] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=19, id(x-1)=18, x=19] [L8] return id(x-1) + 1; [L8] RET, EXPR id(x-1) VAL [\old(x)=20, id(x-1)=19, x=20] [L8] return id(x-1) + 1; [L13] RET, EXPR id(input) [L13] unsigned int result = id(input); [L14] COND TRUE result == 20 [L15] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory is still 49.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 263.25 ms. Allocated memory is still 107.0 MB. Free memory was 71.2 MB in the beginning and 62.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.23 ms. Allocated memory is still 107.0 MB. Free memory was 62.0 MB in the beginning and 60.6 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.34 ms. Allocated memory is still 107.0 MB. Free memory was 60.6 MB in the beginning and 59.7 MB in the end (delta: 880.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 411.76 ms. Allocated memory is still 107.0 MB. Free memory was 59.7 MB in the beginning and 81.8 MB in the end (delta: -22.1 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. * CodeCheck took 42887.25 ms. Allocated memory was 107.0 MB in the beginning and 343.9 MB in the end (delta: 237.0 MB). Free memory was 81.4 MB in the beginning and 240.8 MB in the end (delta: -159.4 MB). Peak memory consumption was 79.0 MB. Max. memory is 16.1 GB. * Witness Printer took 243.31 ms. Allocated memory is still 343.9 MB. Free memory was 240.8 MB in the beginning and 234.5 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:31:17,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5a4c76af-9b77-4b84-883c-bdcaa3d3b933/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...