./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 80b250f44ccc89442200d93f4bf6653c7aad36a18be4f80bda8f239187e0714d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:09:01,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:09:01,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:09:01,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:09:01,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:09:01,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:09:01,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:09:01,861 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:09:01,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:09:01,870 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:09:01,871 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:09:01,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:09:01,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:09:01,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:09:01,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:09:01,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:09:01,884 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:09:01,885 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:09:01,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:09:01,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:09:01,901 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:09:01,902 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:09:01,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:09:01,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:09:01,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:09:01,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:09:01,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:09:01,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:09:01,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:09:01,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:09:01,921 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:09:01,922 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:09:01,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:09:01,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:09:01,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:09:01,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:09:01,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:09:01,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:09:01,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:09:01,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:09:01,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:09:01,931 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 01:09:01,976 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:09:01,977 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:09:01,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 01:09:01,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 01:09:01,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:09:01,980 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:09:01,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:09:01,980 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:09:01,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:09:01,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:09:01,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:09:01,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 01:09:01,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:09:01,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 01:09:01,982 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:09:01,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 01:09:01,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:09:01,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 01:09:01,983 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:09:01,983 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:09:01,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:09:01,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:09:01,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:09:01,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:09:01,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 01:09:01,985 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:09:01,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:09:01,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 01:09:01,985 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_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80b250f44ccc89442200d93f4bf6653c7aad36a18be4f80bda8f239187e0714d [2021-11-23 01:09:02,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:09:02,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:09:02,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:09:02,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:09:02,295 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:09:02,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2021-11-23 01:09:02,382 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/data/942003005/66f05d6579d04b5da143c6d6c53d001f/FLAGf45467e0f [2021-11-23 01:09:02,901 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:09:02,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c [2021-11-23 01:09:02,914 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/data/942003005/66f05d6579d04b5da143c6d6c53d001f/FLAGf45467e0f [2021-11-23 01:09:03,270 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/data/942003005/66f05d6579d04b5da143c6d6c53d001f [2021-11-23 01:09:03,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:09:03,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:09:03,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:09:03,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:09:03,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:09:03,282 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b65616a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03, skipping insertion in model container [2021-11-23 01:09:03,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:09:03,305 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:09:03,489 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_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2021-11-23 01:09:03,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:09:03,508 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:09:03,524 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_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/sv-benchmarks/c/recursive-simple/id_i20_o20-2.c[454,467] [2021-11-23 01:09:03,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:09:03,539 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:09:03,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03 WrapperNode [2021-11-23 01:09:03,540 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:09:03,544 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:09:03,544 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:09:03,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:09:03,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,583 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2021-11-23 01:09:03,584 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:09:03,585 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:09:03,585 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:09:03,585 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:09:03,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,596 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,597 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,612 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:09:03,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:09:03,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:09:03,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:09:03,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,623 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:09:03,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:09:03,645 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:09:03,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:09:03,681 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:09:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:09:03,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:09:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:09:03,682 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-11-23 01:09:03,682 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-11-23 01:09:03,741 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:09:03,743 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:09:03,841 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:09:03,853 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:09:03,853 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 01:09:03,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:03 BoogieIcfgContainer [2021-11-23 01:09:03,856 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:09:03,857 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:09:03,857 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:09:03,867 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:09:03,867 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:03" (1/1) ... [2021-11-23 01:09:03,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:09:03,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:03,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2021-11-23 01:09:03,935 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2021-11-23 01:09:03,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 01:09:03,940 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:03,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:04,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:09:04,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:04,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2021-11-23 01:09:04,173 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2021-11-23 01:09:04,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 01:09:04,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:04,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:04,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:04,332 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 01:09:04,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:04,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 23 states and 31 transitions. [2021-11-23 01:09:04,746 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2021-11-23 01:09:04,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:09:04,748 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:04,749 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:04,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:04,897 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 01:09:05,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:05,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 28 states and 42 transitions. [2021-11-23 01:09:05,262 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 42 transitions. [2021-11-23 01:09:05,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 01:09:05,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:05,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:05,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:05,374 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 01:09:05,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:05,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 33 states and 55 transitions. [2021-11-23 01:09:05,836 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 55 transitions. [2021-11-23 01:09:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 01:09:05,837 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:05,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:05,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:05,932 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-11-23 01:09:06,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:06,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 38 states and 70 transitions. [2021-11-23 01:09:06,339 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 70 transitions. [2021-11-23 01:09:06,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 01:09:06,341 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:06,341 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:06,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:06,450 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-11-23 01:09:06,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:06,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 43 states and 87 transitions. [2021-11-23 01:09:06,904 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 87 transitions. [2021-11-23 01:09:06,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 01:09:06,907 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:06,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2021-11-23 01:09:07,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:07,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 48 states and 106 transitions. [2021-11-23 01:09:07,607 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 106 transitions. [2021-11-23 01:09:07,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-23 01:09:07,609 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:07,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:07,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:07,745 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2021-11-23 01:09:08,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 53 states and 127 transitions. [2021-11-23 01:09:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 127 transitions. [2021-11-23 01:09:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 01:09:08,287 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:08,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:08,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:08,413 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2021-11-23 01:09:08,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:08,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 58 states and 150 transitions. [2021-11-23 01:09:08,934 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 150 transitions. [2021-11-23 01:09:08,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 01:09:08,941 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:08,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2021-11-23 01:09:09,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:09,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 63 states and 175 transitions. [2021-11-23 01:09:09,650 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 175 transitions. [2021-11-23 01:09:09,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2021-11-23 01:09:09,652 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:09,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:09,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2021-11-23 01:09:10,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:10,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 68 states and 202 transitions. [2021-11-23 01:09:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 202 transitions. [2021-11-23 01:09:10,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-11-23 01:09:10,348 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:10,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:10,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:10,544 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2021-11-23 01:09:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:11,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 73 states and 231 transitions. [2021-11-23 01:09:11,182 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 231 transitions. [2021-11-23 01:09:11,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-23 01:09:11,184 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:11,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:11,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:11,319 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-11-23 01:09:12,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:12,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 78 states and 262 transitions. [2021-11-23 01:09:12,002 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 262 transitions. [2021-11-23 01:09:12,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 01:09:12,004 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:12,004 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:12,207 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2021-11-23 01:09:12,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:12,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 83 states and 295 transitions. [2021-11-23 01:09:12,941 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 295 transitions. [2021-11-23 01:09:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-23 01:09:12,943 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:12,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:12,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:13,085 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2021-11-23 01:09:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:13,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 88 states and 330 transitions. [2021-11-23 01:09:13,850 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 330 transitions. [2021-11-23 01:09:13,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-11-23 01:09:13,852 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:13,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:13,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:14,000 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2021-11-23 01:09:14,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:14,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 93 states and 367 transitions. [2021-11-23 01:09:14,775 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 367 transitions. [2021-11-23 01:09:14,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-23 01:09:14,777 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:14,777 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:14,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:14,935 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-11-23 01:09:15,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:15,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 702 states to 98 states and 406 transitions. [2021-11-23 01:09:15,806 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 406 transitions. [2021-11-23 01:09:15,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-23 01:09:15,808 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:15,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:16,016 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2021-11-23 01:09:16,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:16,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 778 states to 103 states and 447 transitions. [2021-11-23 01:09:16,792 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 447 transitions. [2021-11-23 01:09:16,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-11-23 01:09:16,794 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:16,794 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:16,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:16,975 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2021-11-23 01:09:17,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:17,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 858 states to 108 states and 490 transitions. [2021-11-23 01:09:17,797 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 490 transitions. [2021-11-23 01:09:17,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-11-23 01:09:17,800 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:17,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:17,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:09:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2021-11-23 01:09:18,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:09:18,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 113 states and 535 transitions. [2021-11-23 01:09:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 535 transitions. [2021-11-23 01:09:18,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-11-23 01:09:18,924 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:09:18,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:09:18,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:09:18,960 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:09:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:09:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:09:19,112 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:09:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:09:19,217 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 21 iterations. [2021-11-23 01:09:19,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:09:19 ImpRootNode [2021-11-23 01:09:19,356 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:09:19,372 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:09:19,372 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:09:19,372 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:09:19,373 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:09:03" (3/4) ... [2021-11-23 01:09:19,375 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:09:19,499 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:09:19,503 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:09:19,504 INFO L158 Benchmark]: Toolchain (without parser) took 16229.33ms. Allocated memory was 94.4MB in the beginning and 176.2MB in the end (delta: 81.8MB). Free memory was 59.2MB in the beginning and 59.6MB in the end (delta: -404.3kB). Peak memory consumption was 79.7MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,505 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:09:19,506 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.85ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 70.0MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,507 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.15ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 68.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:09:19,507 INFO L158 Benchmark]: Boogie Preprocessor took 27.88ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,508 INFO L158 Benchmark]: RCFGBuilder took 241.91ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 58.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,508 INFO L158 Benchmark]: CodeCheck took 15514.77ms. Allocated memory was 94.4MB in the beginning and 176.2MB in the end (delta: 81.8MB). Free memory was 58.8MB in the beginning and 62.7MB in the end (delta: -3.9MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,509 INFO L158 Benchmark]: Witness Printer took 131.16ms. Allocated memory is still 176.2MB. Free memory was 62.7MB in the beginning and 59.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:09:19,511 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: 15.3s, 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: 0 mSolverCounterUnknown, 2238 SdHoareTripleChecker+Valid, 20.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1579 mSDsluCounter, 1972 SdHoareTripleChecker+Invalid, 17.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1560 mSDsCounter, 1642 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16161 IncrementalHoareTripleChecker+Invalid, 17803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1642 mSolverCounterUnsat, 412 mSDtfsCounter, 16161 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 28403 GetRequests, 27238 SyntacticMatches, 927 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21804 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1449 NumberOfCodeBlocks, 1449 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1300 ConstructedInterpolants, 0 QuantifiedInterpolants, 3360 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] int input = 20; VAL [input=20] [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) VAL [id(input)=20, input=20] [L13] int result = id(input); [L14] COND TRUE result == 20 VAL [input=20, result=20] [L15] reach_error() VAL [input=20, result=20] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 67.4MB in the end (delta: 27.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.85ms. Allocated memory is still 94.4MB. Free memory was 59.0MB in the beginning and 70.0MB in the end (delta: -11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.15ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 68.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 27.88ms. Allocated memory is still 94.4MB. Free memory was 68.7MB in the beginning and 67.5MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 241.91ms. Allocated memory is still 94.4MB. Free memory was 67.5MB in the beginning and 58.8MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 15514.77ms. Allocated memory was 94.4MB in the beginning and 176.2MB in the end (delta: 81.8MB). Free memory was 58.8MB in the beginning and 62.7MB in the end (delta: -3.9MB). Peak memory consumption was 80.4MB. Max. memory is 16.1GB. * Witness Printer took 131.16ms. Allocated memory is still 176.2MB. Free memory was 62.7MB in the beginning and 59.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:09:19,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d4e63c01-d8f4-4c98-ac80-4d0ddaf717dd/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE