./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_all.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cd9bd7b6c1446abd728b90c98a54cb367face4c5994cfeca4979c2dbc50ad4d3 --- 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-6b4ec56 [2022-11-20 17:42:08,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 17:42:08,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 17:42:08,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 17:42:08,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 17:42:08,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 17:42:08,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 17:42:08,932 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 17:42:08,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 17:42:08,942 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 17:42:08,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 17:42:08,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 17:42:08,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 17:42:08,952 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 17:42:08,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 17:42:08,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 17:42:08,955 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 17:42:08,956 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 17:42:08,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 17:42:08,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 17:42:08,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 17:42:08,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 17:42:08,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 17:42:08,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 17:42:08,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 17:42:08,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 17:42:08,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 17:42:08,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 17:42:08,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 17:42:08,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 17:42:08,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 17:42:08,983 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 17:42:08,985 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 17:42:08,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 17:42:08,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 17:42:08,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 17:42:08,988 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 17:42:08,988 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 17:42:08,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 17:42:08,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 17:42:08,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 17:42:08,992 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-11-20 17:42:09,030 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 17:42:09,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 17:42:09,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 17:42:09,034 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-11-20 17:42:09,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 17:42:09,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 17:42:09,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 17:42:09,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 17:42:09,036 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 17:42:09,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 17:42:09,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 17:42:09,037 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 17:42:09,037 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 17:42:09,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 17:42:09,038 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 17:42:09,039 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 17:42:09,039 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 17:42:09,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 17:42:09,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:42:09,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 17:42:09,040 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 17:42:09,040 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 17:42:09,040 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 17:42:09,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 17:42:09,041 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 17:42:09,041 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_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd9bd7b6c1446abd728b90c98a54cb367face4c5994cfeca4979c2dbc50ad4d3 [2022-11-20 17:42:09,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 17:42:09,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 17:42:09,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 17:42:09,371 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 17:42:09,372 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 17:42:09,373 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/list-simple/sll2c_remove_all.i [2022-11-20 17:42:12,541 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 17:42:12,801 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 17:42:12,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/sv-benchmarks/c/list-simple/sll2c_remove_all.i [2022-11-20 17:42:12,817 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/data/1420c958d/01cf5bf2168b42949620ff31afa75cf0/FLAGc76c8ed6d [2022-11-20 17:42:12,832 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/data/1420c958d/01cf5bf2168b42949620ff31afa75cf0 [2022-11-20 17:42:12,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 17:42:12,844 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 17:42:12,846 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 17:42:12,847 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 17:42:12,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 17:42:12,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:42:12" (1/1) ... [2022-11-20 17:42:12,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@373563e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:12, skipping insertion in model container [2022-11-20 17:42:12,852 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:42:12" (1/1) ... [2022-11-20 17:42:12,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 17:42:12,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 17:42:13,253 WARN L237 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_d26f2dfa-605c-4484-b0af-22e3741ca054/sv-benchmarks/c/list-simple/sll2c_remove_all.i[24082,24095] [2022-11-20 17:42:13,256 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:42:13,270 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 17:42:13,338 WARN L237 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_d26f2dfa-605c-4484-b0af-22e3741ca054/sv-benchmarks/c/list-simple/sll2c_remove_all.i[24082,24095] [2022-11-20 17:42:13,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 17:42:13,369 INFO L208 MainTranslator]: Completed translation [2022-11-20 17:42:13,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13 WrapperNode [2022-11-20 17:42:13,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 17:42:13,372 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 17:42:13,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 17:42:13,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 17:42:13,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,420 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,441 INFO L138 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 115 [2022-11-20 17:42:13,441 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 17:42:13,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 17:42:13,442 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 17:42:13,442 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 17:42:13,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,462 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,482 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,488 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,489 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 17:42:13,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 17:42:13,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 17:42:13,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 17:42:13,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:42:13" (1/1) ... [2022-11-20 17:42:13,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 17:42:13,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 17:42:13,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 17:42:13,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 17:42:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 17:42:13,584 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-11-20 17:42:13,585 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-11-20 17:42:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 17:42:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 17:42:13,585 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 17:42:13,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 17:42:13,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 17:42:13,785 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 17:42:13,787 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 17:42:13,992 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 17:42:14,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 17:42:14,071 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 17:42:14,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:42:14 BoogieIcfgContainer [2022-11-20 17:42:14,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 17:42:14,074 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 17:42:14,074 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 17:42:14,087 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 17:42:14,087 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:42:14" (1/1) ... [2022-11-20 17:42:14,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 17:42:14,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:14,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 25 states and 31 transitions. [2022-11-20 17:42:14,169 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-11-20 17:42:14,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 17:42:14,175 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:14,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 17:42:14,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:14,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 33 transitions. [2022-11-20 17:42:14,693 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-11-20 17:42:14,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 17:42:14,694 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:14,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:14,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:14,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 17:42:14,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:14,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 37 transitions. [2022-11-20 17:42:14,928 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-11-20 17:42:14,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 17:42:14,929 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:14,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,037 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 17:42:15,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 30 states and 38 transitions. [2022-11-20 17:42:15,067 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 38 transitions. [2022-11-20 17:42:15,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 17:42:15,068 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:15,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 34 states and 46 transitions. [2022-11-20 17:42:15,334 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2022-11-20 17:42:15,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-20 17:42:15,337 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,432 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:15,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 35 states and 47 transitions. [2022-11-20 17:42:15,447 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2022-11-20 17:42:15,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 17:42:15,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-20 17:42:15,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 29 states and 38 transitions. [2022-11-20 17:42:15,675 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-11-20 17:42:15,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 17:42:15,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:15,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 29 states and 37 transitions. [2022-11-20 17:42:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 37 transitions. [2022-11-20 17:42:15,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 17:42:15,746 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:15,885 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:15,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 32 states and 40 transitions. [2022-11-20 17:42:15,909 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 40 transitions. [2022-11-20 17:42:15,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 17:42:15,912 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:15,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:16,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:16,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 36 states and 48 transitions. [2022-11-20 17:42:16,211 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2022-11-20 17:42:16,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-20 17:42:16,223 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:16,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:16,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:16,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:16,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 41 states and 55 transitions. [2022-11-20 17:42:16,697 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2022-11-20 17:42:16,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 17:42:16,698 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:16,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:16,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-20 17:42:18,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:18,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 43 states and 61 transitions. [2022-11-20 17:42:18,255 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2022-11-20 17:42:18,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 17:42:18,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:18,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:18,666 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-20 17:42:20,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 54 states and 78 transitions. [2022-11-20 17:42:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 78 transitions. [2022-11-20 17:42:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-20 17:42:20,718 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:20,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:20,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:42:22,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:22,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 59 states and 85 transitions. [2022-11-20 17:42:22,560 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 85 transitions. [2022-11-20 17:42:22,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 17:42:22,561 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:22,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:22,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:22,660 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:42:24,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:24,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 51 states and 69 transitions. [2022-11-20 17:42:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 69 transitions. [2022-11-20 17:42:24,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-20 17:42:24,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:24,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:24,966 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-20 17:42:26,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:26,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 53 states and 73 transitions. [2022-11-20 17:42:26,008 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 73 transitions. [2022-11-20 17:42:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 17:42:26,009 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:26,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:26,156 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:42:28,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:28,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 58 states and 80 transitions. [2022-11-20 17:42:28,267 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 80 transitions. [2022-11-20 17:42:28,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-20 17:42:28,267 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 17:42:28,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 17:42:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 17:42:28,418 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 17:42:30,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 17:42:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 35 states and 44 transitions. [2022-11-20 17:42:30,198 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2022-11-20 17:42:30,198 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 17:42:30,199 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 18 iterations. [2022-11-20 17:42:30,206 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-11-20 17:42:30,535 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 17:42:30,545 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-11-20 17:42:30,546 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:42:30,546 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-11-20 17:42:30,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 05:42:30 ImpRootNode [2022-11-20 17:42:30,547 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 17:42:30,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 17:42:30,548 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 17:42:30,548 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 17:42:30,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:42:14" (3/4) ... [2022-11-20 17:42:30,568 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 17:42:30,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2022-11-20 17:42:30,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-20 17:42:30,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-11-20 17:42:30,579 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 17:42:30,580 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 17:42:30,622 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 17:42:30,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 17:42:30,623 INFO L158 Benchmark]: Toolchain (without parser) took 17778.94ms. Allocated memory was 155.2MB in the beginning and 243.3MB in the end (delta: 88.1MB). Free memory was 111.9MB in the beginning and 101.3MB in the end (delta: 10.6MB). Peak memory consumption was 99.9MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,623 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 17:42:30,624 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.87ms. Allocated memory is still 155.2MB. Free memory was 111.9MB in the beginning and 94.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,624 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.25ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 92.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,625 INFO L158 Benchmark]: Boogie Preprocessor took 53.87ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 91.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,625 INFO L158 Benchmark]: RCFGBuilder took 576.87ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 115.0MB in the end (delta: -24.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,626 INFO L158 Benchmark]: CodeCheck took 16472.78ms. Allocated memory was 155.2MB in the beginning and 243.3MB in the end (delta: 88.1MB). Free memory was 115.0MB in the beginning and 104.4MB in the end (delta: 10.6MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,626 INFO L158 Benchmark]: Witness Printer took 75.03ms. Allocated memory is still 243.3MB. Free memory was 104.4MB in the beginning and 101.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 17:42:30,629 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, 25 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 16.1s, OverallIterations: 18, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1424 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 666 mSDsluCounter, 1027 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 504 mSDsCounter, 603 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2243 IncrementalHoareTripleChecker+Invalid, 2846 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 603 mSolverCounterUnsat, 523 mSDtfsCounter, 2243 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2985 GetRequests, 2806 SyntacticMatches, 9 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10831 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 405 NumberOfCodeBlocks, 405 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1302 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 9 PerfectInterpolantSequences, 116/153 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: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 590]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 602]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 615]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 109.1MB. Free memory was 57.6MB in the beginning and 57.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.87ms. Allocated memory is still 155.2MB. Free memory was 111.9MB in the beginning and 94.7MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.25ms. Allocated memory is still 155.2MB. Free memory was 94.7MB in the beginning and 92.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.87ms. Allocated memory is still 155.2MB. Free memory was 92.7MB in the beginning and 91.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 576.87ms. Allocated memory is still 155.2MB. Free memory was 91.0MB in the beginning and 115.0MB in the end (delta: -24.0MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * CodeCheck took 16472.78ms. Allocated memory was 155.2MB in the beginning and 243.3MB in the end (delta: 88.1MB). Free memory was 115.0MB in the beginning and 104.4MB in the end (delta: 10.6MB). Peak memory consumption was 98.4MB. Max. memory is 16.1GB. * Witness Printer took 75.03ms. Allocated memory is still 243.3MB. Free memory was 104.4MB in the beginning and 101.3MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-11-20 17:42:30,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d26f2dfa-605c-4484-b0af-22e3741ca054/bin/ukojak-pZX7IvK2PQ/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