./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e --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 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 23:43:19,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 23:43:19,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 23:43:19,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 23:43:19,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 23:43:19,990 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 23:43:19,992 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 23:43:19,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 23:43:20,001 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 23:43:20,007 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 23:43:20,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 23:43:20,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 23:43:20,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 23:43:20,014 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 23:43:20,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 23:43:20,020 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 23:43:20,022 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 23:43:20,023 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 23:43:20,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 23:43:20,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 23:43:20,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 23:43:20,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 23:43:20,041 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 23:43:20,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 23:43:20,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 23:43:20,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 23:43:20,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 23:43:20,054 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 23:43:20,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 23:43:20,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 23:43:20,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 23:43:20,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 23:43:20,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 23:43:20,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 23:43:20,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 23:43:20,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 23:43:20,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 23:43:20,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 23:43:20,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 23:43:20,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 23:43:20,067 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 23:43:20,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-13 23:43:20,110 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 23:43:20,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 23:43:20,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-13 23:43:20,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-13 23:43:20,113 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 23:43:20,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 23:43:20,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 23:43:20,114 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 23:43:20,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 23:43:20,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 23:43:20,115 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 23:43:20,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-13 23:43:20,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-13 23:43:20,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-13 23:43:20,116 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 23:43:20,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 23:43:20,117 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 23:43:20,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-13 23:43:20,117 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-13 23:43:20,118 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-13 23:43:20,118 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 23:43:20,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:43:20,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 23:43:20,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-13 23:43:20,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-13 23:43:20,119 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-13 23:43:20,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-13 23:43:20,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-13 23:43:20,120 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_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c0fb6a0d32b99c9a776859d2bc15d9177dc584955a2c1baa8ac133e976f40f7 [2021-11-13 23:43:20,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 23:43:20,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 23:43:20,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 23:43:20,508 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 23:43:20,509 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 23:43:20,510 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/../../sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2021-11-13 23:43:20,578 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/data/b7b0bfcf4/3e1a0e9d1c194d58b3dc470b6ed0b79f/FLAG2d85cc7d9 [2021-11-13 23:43:21,116 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 23:43:21,117 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c [2021-11-13 23:43:21,129 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/data/b7b0bfcf4/3e1a0e9d1c194d58b3dc470b6ed0b79f/FLAG2d85cc7d9 [2021-11-13 23:43:21,492 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/data/b7b0bfcf4/3e1a0e9d1c194d58b3dc470b6ed0b79f [2021-11-13 23:43:21,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 23:43:21,496 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 23:43:21,498 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 23:43:21,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 23:43:21,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 23:43:21,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e9499a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21, skipping insertion in model container [2021-11-13 23:43:21,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 23:43:21,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 23:43:21,763 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_c7cd380d-ae73-4d33-94f6-984b9c90677a/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c[548,561] [2021-11-13 23:43:21,770 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:43:21,783 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 23:43:21,802 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_c7cd380d-ae73-4d33-94f6-984b9c90677a/sv-benchmarks/c/recursive-simple/id2_i5_o5-2.c[548,561] [2021-11-13 23:43:21,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 23:43:21,822 INFO L208 MainTranslator]: Completed translation [2021-11-13 23:43:21,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21 WrapperNode [2021-11-13 23:43:21,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 23:43:21,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 23:43:21,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 23:43:21,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 23:43:21,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,843 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,862 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 23:43:21,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 23:43:21,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 23:43:21,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 23:43:21,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,891 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 23:43:21,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 23:43:21,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 23:43:21,901 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 23:43:21,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:43:21" (1/1) ... [2021-11-13 23:43:21,910 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-13 23:43:21,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/z3 [2021-11-13 23:43:21,933 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-13 23:43:21,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-13 23:43:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 23:43:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 23:43:21,991 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2021-11-13 23:43:21,991 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2021-11-13 23:43:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 23:43:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 23:43:21,993 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-13 23:43:21,993 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-13 23:43:22,274 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 23:43:22,275 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-13 23:43:22,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:22 BoogieIcfgContainer [2021-11-13 23:43:22,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 23:43:22,279 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-13 23:43:22,279 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-13 23:43:22,291 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-13 23:43:22,291 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:22" (1/1) ... [2021-11-13 23:43:22,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 23:43:22,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:22,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 20 states and 23 transitions. [2021-11-13 23:43:22,361 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-13 23:43:22,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-13 23:43:22,365 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:22,366 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:22,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 25 transitions. [2021-11-13 23:43:22,662 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-11-13 23:43:22,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-13 23:43:22,663 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:22,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:22,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 23:43:22,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:22,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 32 transitions. [2021-11-13 23:43:22,877 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-11-13 23:43:22,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-13 23:43:22,879 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:22,879 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:22,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:23,044 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-13 23:43:23,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:23,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 43 transitions. [2021-11-13 23:43:23,285 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-11-13 23:43:23,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-13 23:43:23,288 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:23,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:23,446 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-13 23:43:23,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:23,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 39 states and 56 transitions. [2021-11-13 23:43:23,676 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 56 transitions. [2021-11-13 23:43:23,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-13 23:43:23,677 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:23,678 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:23,788 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-13 23:43:24,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:24,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 45 states and 71 transitions. [2021-11-13 23:43:24,055 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 71 transitions. [2021-11-13 23:43:24,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-13 23:43:24,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:24,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:24,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:24,687 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-11-13 23:43:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:27,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 64 states and 117 transitions. [2021-11-13 23:43:27,463 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 117 transitions. [2021-11-13 23:43:27,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-13 23:43:27,466 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:27,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:27,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:27,901 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-13 23:43:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 73 states and 83 transitions. [2021-11-13 23:43:30,064 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2021-11-13 23:43:30,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-13 23:43:30,066 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-13 23:43:30,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 23:43:30,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 23:43:30,392 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-13 23:43:31,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-13 23:43:31,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 49 states and 53 transitions. [2021-11-13 23:43:31,116 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 53 transitions. [2021-11-13 23:43:31,116 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-13 23:43:31,117 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 9 iterations. [2021-11-13 23:43:31,133 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2021-11-13 23:43:31,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:43:31 ImpRootNode [2021-11-13 23:43:31,242 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-13 23:43:31,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 23:43:31,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 23:43:31,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 23:43:31,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:43:22" (3/4) ... [2021-11-13 23:43:31,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-13 23:43:31,253 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2021-11-13 23:43:31,254 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-11-13 23:43:31,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-11-13 23:43:31,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-13 23:43:31,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-13 23:43:31,258 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-13 23:43:31,294 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/witness.graphml [2021-11-13 23:43:31,294 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 23:43:31,295 INFO L158 Benchmark]: Toolchain (without parser) took 9798.58ms. Allocated memory was 104.9MB in the beginning and 167.8MB in the end (delta: 62.9MB). Free memory was 64.7MB in the beginning and 92.5MB in the end (delta: -27.8MB). Peak memory consumption was 34.6MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,296 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:43:31,296 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.98ms. Allocated memory is still 104.9MB. Free memory was 64.4MB in the beginning and 80.9MB in the end (delta: -16.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.61ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,298 INFO L158 Benchmark]: Boogie Preprocessor took 37.22ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 23:43:31,298 INFO L158 Benchmark]: RCFGBuilder took 376.95ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 68.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,299 INFO L158 Benchmark]: CodeCheck took 8963.02ms. Allocated memory was 104.9MB in the beginning and 167.8MB in the end (delta: 62.9MB). Free memory was 68.6MB in the beginning and 95.6MB in the end (delta: -27.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,299 INFO L158 Benchmark]: Witness Printer took 51.56ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 23:43:31,302 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: 8.8s, OverallIterations: 9, 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, 594 SdHoareTripleChecker+Valid, 3263.87ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 281 mSDsluCounter, 640 SdHoareTripleChecker+Invalid, 2673.56ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 471 mSDsCounter, 531 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2043 IncrementalHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 531 mSolverCounterUnsat, 169 mSDtfsCounter, 2043 mSolverCounterSat, 60.05ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2777 GetRequests, 2523 SyntacticMatches, 96 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8856 ImplicationChecksByTransitivity, 6.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 240 NumberOfCodeBlocks, 240 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 232 ConstructedInterpolants, 0 QuantifiedInterpolants, 620 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 147/180 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: 23]: 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 0.32ms. Allocated memory is still 104.9MB. Free memory is still 80.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 324.98ms. Allocated memory is still 104.9MB. Free memory was 64.4MB in the beginning and 80.9MB in the end (delta: -16.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.61ms. Allocated memory is still 104.9MB. Free memory was 80.9MB in the beginning and 79.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.22ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 376.95ms. Allocated memory is still 104.9MB. Free memory was 78.5MB in the beginning and 68.6MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 8963.02ms. Allocated memory was 104.9MB in the beginning and 167.8MB in the end (delta: 62.9MB). Free memory was 68.6MB in the beginning and 95.6MB in the end (delta: -27.0MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. * Witness Printer took 51.56ms. Allocated memory is still 167.8MB. Free memory was 95.6MB in the beginning and 92.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2021-11-13 23:43:31,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c7cd380d-ae73-4d33-94f6-984b9c90677a/bin/ukojak-2xVlg8857e/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE