./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB --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 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:36:20,494 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:36:20,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:36:20,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:36:20,525 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:36:20,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:36:20,528 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:36:20,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:36:20,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:36:20,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:36:20,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:36:20,538 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:36:20,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:36:20,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:36:20,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:36:20,544 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:36:20,545 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:36:20,546 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:36:20,549 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:36:20,551 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:36:20,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:36:20,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:36:20,557 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:36:20,558 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:36:20,564 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:36:20,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:36:20,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:36:20,573 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:36:20,574 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:36:20,575 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:36:20,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:36:20,576 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:36:20,577 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:36:20,578 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:36:20,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:36:20,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:36:20,591 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:36:20,592 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:36:20,592 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:36:20,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:36:20,593 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:36:20,594 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:36:20,656 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:36:20,656 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:36:20,661 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:36:20,661 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:36:20,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:36:20,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:36:20,663 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:36:20,663 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:36:20,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:36:20,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:36:20,664 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:36:20,665 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:36:20,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:36:20,666 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:36:20,666 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:36:20,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:36:20,666 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:20,667 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:36:20,667 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:36:20,667 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:36:20,667 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:36:20,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:36:20,668 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:36:20,668 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_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1be5a7d97aa41e02c549ddce0b54861696e25bfa9b91d41dbf151eb81f7686c7 [2022-10-17 16:36:20,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:36:20,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:36:20,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:36:20,963 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:36:20,964 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:36:20,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2022-10-17 16:36:21,027 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/data/d6ef1a995/2498fed08d26483c87eaaf609cef8c43/FLAG80c75fff4 [2022-10-17 16:36:21,458 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:36:21,459 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c [2022-10-17 16:36:21,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/data/d6ef1a995/2498fed08d26483c87eaaf609cef8c43/FLAG80c75fff4 [2022-10-17 16:36:21,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/data/d6ef1a995/2498fed08d26483c87eaaf609cef8c43 [2022-10-17 16:36:21,853 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:36:21,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:36:21,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:21,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:36:21,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:36:21,860 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:21" (1/1) ... [2022-10-17 16:36:21,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fb09ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:21, skipping insertion in model container [2022-10-17 16:36:21,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:36:21" (1/1) ... [2022-10-17 16:36:21,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:36:21,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:36:22,045 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_38ccce9a-be7a-44de-bb20-2042355e3b03/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2022-10-17 16:36:22,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:22,063 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:36:22,086 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_38ccce9a-be7a-44de-bb20-2042355e3b03/sv-benchmarks/c/recursive-simple/id_i5_o5-2.c[450,463] [2022-10-17 16:36:22,087 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:36:22,108 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:36:22,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22 WrapperNode [2022-10-17 16:36:22,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:36:22,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:22,112 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:36:22,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:36:22,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,153 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-17 16:36:22,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:36:22,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:36:22,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:36:22,155 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:36:22,163 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,169 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,178 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,179 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:36:22,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:36:22,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:36:22,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:36:22,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:36:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:36:22,218 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:36:22,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:36:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:36:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:36:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:36:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:36:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-17 16:36:22,263 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-17 16:36:22,324 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:36:22,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:36:22,425 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:36:22,440 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:36:22,440 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 16:36:22,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:22 BoogieIcfgContainer [2022-10-17 16:36:22,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:36:22,444 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:36:22,444 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:36:22,456 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:36:22,456 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:22" (1/1) ... [2022-10-17 16:36:22,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:36:22,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:22,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 14 states and 16 transitions. [2022-10-17 16:36:22,527 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-10-17 16:36:22,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 16:36:22,533 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:22,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:22,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:36:22,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:22,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 16 states and 18 transitions. [2022-10-17 16:36:22,900 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-10-17 16:36:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-17 16:36:22,901 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:22,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:23,150 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 16:36:23,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:23,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 19 states and 23 transitions. [2022-10-17 16:36:23,338 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2022-10-17 16:36:23,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:36:23,339 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:23,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:23,583 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-17 16:36:23,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:23,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 22 states and 29 transitions. [2022-10-17 16:36:23,722 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 29 transitions. [2022-10-17 16:36:23,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:36:23,723 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:23,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:23,909 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-17 16:36:24,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:24,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 25 states and 36 transitions. [2022-10-17 16:36:24,014 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2022-10-17 16:36:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:36:24,018 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:24,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:24,281 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-10-17 16:36:24,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 28 states and 44 transitions. [2022-10-17 16:36:24,433 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 44 transitions. [2022-10-17 16:36:24,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-17 16:36:24,436 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:24,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:24,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:25,063 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-10-17 16:36:27,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:27,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 47 states and 94 transitions. [2022-10-17 16:36:27,511 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2022-10-17 16:36:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-17 16:36:27,514 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:36:27,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:36:27,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:36:27,873 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-10-17 16:36:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:36:29,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 29 states and 31 transitions. [2022-10-17 16:36:29,337 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-10-17 16:36:29,338 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:36:29,338 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2022-10-17 16:36:29,348 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:36:29,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:36:29 ImpRootNode [2022-10-17 16:36:29,454 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:36:29,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:36:29,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:36:29,455 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:36:29,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:36:22" (3/4) ... [2022-10-17 16:36:29,459 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:36:29,465 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2022-10-17 16:36:29,474 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-10-17 16:36:29,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 16:36:29,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:36:29,475 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:36:29,522 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:36:29,522 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:36:29,523 INFO L158 Benchmark]: Toolchain (without parser) took 7668.20ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 50.7MB in the beginning and 68.5MB in the end (delta: -17.9MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,523 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 77.6MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:29,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 253.94ms. Allocated memory is still 77.6MB. Free memory was 50.4MB in the beginning and 53.9MB in the end (delta: -3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.90ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,524 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 51.7MB in the end (delta: 837.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:36:29,525 INFO L158 Benchmark]: RCFGBuilder took 259.53ms. Allocated memory is still 77.6MB. Free memory was 51.5MB in the beginning and 42.6MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,526 INFO L158 Benchmark]: CodeCheck took 7010.25ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.4MB in the beginning and 22.4MB in the end (delta: 20.0MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,526 INFO L158 Benchmark]: Witness Printer took 67.01ms. Allocated memory is still 94.4MB. Free memory was 22.4MB in the beginning and 68.5MB in the end (delta: -46.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:36:29,529 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: 6.9s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 334 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 234 mSDsCounter, 312 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1130 IncrementalHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 312 mSolverCounterUnsat, 100 mSDtfsCounter, 1130 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2101 GetRequests, 1976 SyntacticMatches, 5 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5044 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 189 NumberOfCodeBlocks, 189 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 204/294 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: 15]: 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 77.6MB. Free memory is still 48.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 253.94ms. Allocated memory is still 77.6MB. Free memory was 50.4MB in the beginning and 53.9MB in the end (delta: -3.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.90ms. Allocated memory is still 77.6MB. Free memory was 53.9MB in the beginning and 52.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 77.6MB. Free memory was 52.5MB in the beginning and 51.7MB in the end (delta: 837.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 259.53ms. Allocated memory is still 77.6MB. Free memory was 51.5MB in the beginning and 42.6MB in the end (delta: 8.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 7010.25ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.4MB in the beginning and 22.4MB in the end (delta: 20.0MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 67.01ms. Allocated memory is still 94.4MB. Free memory was 22.4MB in the beginning and 68.5MB in the end (delta: -46.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:36:29,588 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38ccce9a-be7a-44de-bb20-2042355e3b03/bin/ukojak-92XMlrwhuB/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