./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/config/KojakReach.xml -i ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4 --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 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 --- 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-2329fc7 [2022-12-14 19:05:58,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 19:05:58,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 19:05:58,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 19:05:58,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 19:05:58,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 19:05:58,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 19:05:58,233 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 19:05:58,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 19:05:58,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 19:05:58,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 19:05:58,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 19:05:58,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 19:05:58,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 19:05:58,239 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 19:05:58,240 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 19:05:58,241 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 19:05:58,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 19:05:58,244 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 19:05:58,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 19:05:58,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 19:05:58,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 19:05:58,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 19:05:58,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 19:05:58,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 19:05:58,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 19:05:58,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 19:05:58,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 19:05:58,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 19:05:58,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 19:05:58,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 19:05:58,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 19:05:58,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 19:05:58,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 19:05:58,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 19:05:58,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 19:05:58,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 19:05:58,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 19:05:58,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 19:05:58,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 19:05:58,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 19:05:58,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/config/svcomp-Overflow-32bit-Kojak_Default.epf [2022-12-14 19:05:58,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 19:05:58,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 19:05:58,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 19:05:58,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-12-14 19:05:58,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 19:05:58,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 19:05:58,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 19:05:58,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 19:05:58,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 19:05:58,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 19:05:58,288 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-12-14 19:05:58,288 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-12-14 19:05:58,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 19:05:58,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:05:58,289 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 19:05:58,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 19:05:58,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 19:05:58,289 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-12-14 19:05:58,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 19:05:58,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 19:05:58,290 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_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2022-12-14 19:05:58,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 19:05:58,509 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 19:05:58,512 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 19:05:58,513 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 19:05:58,514 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 19:05:58,515 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-12-14 19:06:01,180 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 19:06:01,392 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 19:06:01,393 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-12-14 19:06:01,407 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/data/c9a1fda46/da64963230ad4e1eb2c9ba1beddbf91c/FLAG8d1faa864 [2022-12-14 19:06:01,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/data/c9a1fda46/da64963230ad4e1eb2c9ba1beddbf91c [2022-12-14 19:06:01,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 19:06:01,422 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 19:06:01,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 19:06:01,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 19:06:01,425 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 19:06:01,426 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,427 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10c9056e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01, skipping insertion in model container [2022-12-14 19:06:01,427 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 19:06:01,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 19:06:01,697 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_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-12-14 19:06:01,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:06:01,706 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 19:06:01,744 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_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-12-14 19:06:01,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 19:06:01,774 INFO L208 MainTranslator]: Completed translation [2022-12-14 19:06:01,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01 WrapperNode [2022-12-14 19:06:01,775 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 19:06:01,776 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 19:06:01,776 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 19:06:01,776 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 19:06:01,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,818 INFO L138 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 123 [2022-12-14 19:06:01,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 19:06:01,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 19:06:01,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 19:06:01,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 19:06:01,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,839 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,842 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,845 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 19:06:01,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 19:06:01,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 19:06:01,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 19:06:01,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:06:01" (1/1) ... [2022-12-14 19:06:01,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-12-14 19:06:01,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/z3 [2022-12-14 19:06:01,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-12-14 19:06:01,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-12-14 19:06:01,905 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 19:06:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 19:06:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 19:06:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-12-14 19:06:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 19:06:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 19:06:01,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 19:06:01,998 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 19:06:01,999 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 19:06:02,158 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 19:06:02,189 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 19:06:02,189 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-14 19:06:02,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:06:02 BoogieIcfgContainer [2022-12-14 19:06:02,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 19:06:02,191 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-12-14 19:06:02,192 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-12-14 19:06:02,199 INFO L275 PluginConnector]: CodeCheck initialized [2022-12-14 19:06:02,199 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:06:02" (1/1) ... [2022-12-14 19:06:02,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 19:06:02,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:02,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2022-12-14 19:06:02,248 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2022-12-14 19:06:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 19:06:02,251 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:02,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:02,561 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 19:06:02,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:02,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 32 states and 42 transitions. [2022-12-14 19:06:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-12-14 19:06:02,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 19:06:02,630 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:02,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:02,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 19:06:02,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:02,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 43 transitions. [2022-12-14 19:06:02,761 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2022-12-14 19:06:02,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 19:06:02,762 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:02,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:02,885 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 19:06:02,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:02,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 27 states and 34 transitions. [2022-12-14 19:06:02,922 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2022-12-14 19:06:02,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-14 19:06:02,922 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:02,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:02,957 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:02,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:02,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 27 states and 33 transitions. [2022-12-14 19:06:02,967 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 33 transitions. [2022-12-14 19:06:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 19:06:02,968 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:02,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:03,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 34 states and 45 transitions. [2022-12-14 19:06:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2022-12-14 19:06:03,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-14 19:06:03,105 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:03,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 35 states and 46 transitions. [2022-12-14 19:06:03,175 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 46 transitions. [2022-12-14 19:06:03,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-14 19:06:03,176 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:03,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 45 transitions. [2022-12-14 19:06:03,208 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 45 transitions. [2022-12-14 19:06:03,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 19:06:03,209 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:03,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 39 states and 51 transitions. [2022-12-14 19:06:03,484 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 51 transitions. [2022-12-14 19:06:03,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-12-14 19:06:03,485 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:06:03,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 42 states and 54 transitions. [2022-12-14 19:06:03,572 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 54 transitions. [2022-12-14 19:06:03,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-12-14 19:06:03,573 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,675 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:03,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 49 states and 66 transitions. [2022-12-14 19:06:03,791 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 66 transitions. [2022-12-14 19:06:03,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-12-14 19:06:03,793 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:03,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:03,926 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:04,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:04,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 57 states and 78 transitions. [2022-12-14 19:06:04,101 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 78 transitions. [2022-12-14 19:06:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-14 19:06:04,102 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:04,158 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-12-14 19:06:04,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:04,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 61 states and 84 transitions. [2022-12-14 19:06:04,371 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 84 transitions. [2022-12-14 19:06:04,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-12-14 19:06:04,372 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:04,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:04,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:04,431 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:06:04,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:04,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 64 states and 87 transitions. [2022-12-14 19:06:04,447 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2022-12-14 19:06:04,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-14 19:06:04,448 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:04,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:04,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:06:04,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:04,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 90 transitions. [2022-12-14 19:06:04,546 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 90 transitions. [2022-12-14 19:06:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-14 19:06:04,547 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:04,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:04,682 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 7 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 56 states and 73 transitions. [2022-12-14 19:06:04,726 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 73 transitions. [2022-12-14 19:06:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-12-14 19:06:04,727 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:04,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-14 19:06:06,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 72 states and 97 transitions. [2022-12-14 19:06:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2022-12-14 19:06:06,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 19:06:06,455 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:06,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:06,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:06,664 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-14 19:06:06,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:06,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 72 states and 95 transitions. [2022-12-14 19:06:06,957 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 95 transitions. [2022-12-14 19:06:06,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-14 19:06:06,957 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:06,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:07,066 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 19:06:07,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 68 states and 87 transitions. [2022-12-14 19:06:07,322 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 87 transitions. [2022-12-14 19:06:07,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 19:06:07,323 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:07,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:07,401 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:06:08,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:08,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 75 states and 95 transitions. [2022-12-14 19:06:08,050 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2022-12-14 19:06:08,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-14 19:06:08,050 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-12-14 19:06:08,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 19:06:08,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 19:06:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-12-14 19:06:08,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-12-14 19:06:08,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 45 states and 54 transitions. [2022-12-14 19:06:08,764 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 54 transitions. [2022-12-14 19:06:08,765 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-14 19:06:08,765 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 21 iterations. [2022-12-14 19:06:08,772 INFO L754 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2022-12-14 19:06:09,000 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-14 19:06:09,008 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-14 19:06:09,009 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 19:06:09,009 INFO L560 CodeCheckObserver]: Invariant with dag size 6 [2022-12-14 19:06:09,009 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-12-14 19:06:09,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 14.12 07:06:09 ImpRootNode [2022-12-14 19:06:09,010 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-12-14 19:06:09,010 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 19:06:09,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 19:06:09,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 19:06:09,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:06:02" (3/4) ... [2022-12-14 19:06:09,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-14 19:06:09,018 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2022-12-14 19:06:09,022 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-12-14 19:06:09,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-12-14 19:06:09,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-14 19:06:09,023 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-14 19:06:09,068 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/witness.graphml [2022-12-14 19:06:09,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 19:06:09,069 INFO L158 Benchmark]: Toolchain (without parser) took 7647.12ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 104.3MB in the beginning and 81.9MB in the end (delta: 22.4MB). Peak memory consumption was 53.2MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,069 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory was 111.2MB in the beginning and 111.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 19:06:09,070 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.85ms. Allocated memory is still 136.3MB. Free memory was 104.3MB in the beginning and 87.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,070 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.92ms. Allocated memory is still 136.3MB. Free memory was 87.1MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,070 INFO L158 Benchmark]: Boogie Preprocessor took 30.77ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 83.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,071 INFO L158 Benchmark]: RCFGBuilder took 340.85ms. Allocated memory is still 136.3MB. Free memory was 83.5MB in the beginning and 65.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,071 INFO L158 Benchmark]: CodeCheck took 6818.22ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 85.0MB in the end (delta: -19.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,071 INFO L158 Benchmark]: Witness Printer took 58.14ms. Allocated memory is still 165.7MB. Free memory was 85.0MB in the beginning and 81.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 19:06:09,073 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, 28 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 21, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2237 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1246 mSDsluCounter, 2134 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1397 mSDsCounter, 651 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2508 IncrementalHoareTripleChecker+Invalid, 3159 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 651 mSolverCounterUnsat, 737 mSDtfsCounter, 2508 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4351 GetRequests, 4176 SyntacticMatches, 37 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7546 ImplicationChecksByTransitivity, 4.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 606 NumberOfCodeBlocks, 606 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 586 ConstructedInterpolants, 0 QuantifiedInterpolants, 1549 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 9 PerfectInterpolantSequences, 233/316 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: 597]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 572]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 617]: Loop Invariant Derived loop invariant: i == 0 || 1 <= i - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory was 111.2MB in the beginning and 111.2MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.85ms. Allocated memory is still 136.3MB. Free memory was 104.3MB in the beginning and 87.1MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.92ms. Allocated memory is still 136.3MB. Free memory was 87.1MB in the beginning and 84.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.77ms. Allocated memory is still 136.3MB. Free memory was 84.9MB in the beginning and 83.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 340.85ms. Allocated memory is still 136.3MB. Free memory was 83.5MB in the beginning and 65.2MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 6818.22ms. Allocated memory was 136.3MB in the beginning and 165.7MB in the end (delta: 29.4MB). Free memory was 65.2MB in the beginning and 85.0MB in the end (delta: -19.8MB). Peak memory consumption was 11.2MB. Max. memory is 16.1GB. * Witness Printer took 58.14ms. Allocated memory is still 165.7MB. Free memory was 85.0MB in the beginning and 81.9MB 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! [2022-12-14 19:06:09,089 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea84f40c-fbfd-4bd4-b99a-4213f17f8d77/bin/ukojak-rkRKPMF4O4/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