./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/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_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-dbf71c6-m [2022-10-17 16:58:36,561 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:58:36,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:58:36,605 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:58:36,606 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:58:36,608 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:58:36,610 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:58:36,613 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:58:36,616 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:58:36,623 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:58:36,624 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:58:36,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:58:36,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:58:36,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:58:36,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:58:36,636 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:58:36,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:58:36,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:58:36,642 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:58:36,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:58:36,652 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:58:36,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:58:36,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:58:36,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:58:36,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:58:36,683 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:58:36,684 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:58:36,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:58:36,686 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:58:36,687 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:58:36,688 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:58:36,689 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:58:36,690 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:58:36,698 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:58:36,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:58:36,700 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:58:36,701 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:58:36,701 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:58:36,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:58:36,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:58:36,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:58:36,704 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:58:36,749 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:58:36,749 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:58:36,751 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:58:36,751 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:58:36,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:58:36,752 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:58:36,752 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:58:36,753 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:58:36,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:58:36,753 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:58:36,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:58:36,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:58:36,755 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:58:36,755 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:58:36,755 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:58:36,755 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:58:36,755 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:58:36,756 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:58:36,756 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:58:36,756 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:58:36,756 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:58:36,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:36,757 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:58:36,757 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:58:36,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:58:36,757 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:58:36,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:58:36,758 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:58:36,758 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_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3340815bef7e21ae2d4803d7059577c1761bb3b7b4bb24b2b34d5d0d0054fd10 [2022-10-17 16:58:37,142 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:58:37,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:58:37,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:58:37,182 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:58:37,183 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:58:37,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-10-17 16:58:37,271 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/data/0894bda3e/77223d5f1ee742d89d08d151917c1a85/FLAGd018df78c [2022-10-17 16:58:38,051 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:58:38,051 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i [2022-10-17 16:58:38,065 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/data/0894bda3e/77223d5f1ee742d89d08d151917c1a85/FLAGd018df78c [2022-10-17 16:58:38,297 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/data/0894bda3e/77223d5f1ee742d89d08d151917c1a85 [2022-10-17 16:58:38,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:58:38,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:58:38,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:38,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:58:38,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:58:38,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,315 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a47b25d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38, skipping insertion in model container [2022-10-17 16:58:38,315 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:58:38,365 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:58:38,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-10-17 16:58:38,757 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:38,769 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:58:38,824 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/sv-benchmarks/c/list-simple/sll2c_remove_all_reverse.i[24151,24164] [2022-10-17 16:58:38,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:58:38,857 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:58:38,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38 WrapperNode [2022-10-17 16:58:38,857 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:58:38,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:38,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:58:38,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:58:38,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,907 INFO L138 Inliner]: procedures = 126, calls = 36, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 119 [2022-10-17 16:58:38,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:58:38,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:58:38,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:58:38,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:58:38,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,937 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:58:38,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:58:38,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:58:38,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:58:38,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:58:38" (1/1) ... [2022-10-17 16:58:38,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:58:38,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:58:38,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:58:39,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4906691a-5783-44c6-9e54-42e1e081ee4d/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:58:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 16:58:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2022-10-17 16:58:39,037 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2022-10-17 16:58:39,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 16:58:39,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-17 16:58:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:58:39,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:58:39,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:58:39,155 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:58:39,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:58:39,414 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:58:39,506 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:58:39,506 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-17 16:58:39,509 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:39 BoogieIcfgContainer [2022-10-17 16:58:39,509 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:58:39,519 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:58:39,519 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:58:39,531 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:58:39,531 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:58:39" (1/1) ... [2022-10-17 16:58:39,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:58:39,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2022-10-17 16:58:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2022-10-17 16:58:39,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 16:58:39,629 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:39,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:58:40,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:40,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 34 transitions. [2022-10-17 16:58:40,120 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2022-10-17 16:58:40,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 16:58:40,121 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:40,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:40,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:40,473 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:40,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 26 states and 36 transitions. [2022-10-17 16:58:40,767 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2022-10-17 16:58:40,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-17 16:58:40,768 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:40,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:40,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:40,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:40,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 26 states and 35 transitions. [2022-10-17 16:58:40,864 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2022-10-17 16:58:40,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-17 16:58:40,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:40,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:41,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:41,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:41,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 32 states and 45 transitions. [2022-10-17 16:58:41,191 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 45 transitions. [2022-10-17 16:58:41,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:58:41,194 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:41,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:41,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:41,292 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:41,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 32 states and 44 transitions. [2022-10-17 16:58:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2022-10-17 16:58:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 16:58:41,303 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:41,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:41,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:58:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 36 states and 50 transitions. [2022-10-17 16:58:41,791 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2022-10-17 16:58:41,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-17 16:58:41,793 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:41,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:41,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:41,958 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-17 16:58:41,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:42,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 39 states and 53 transitions. [2022-10-17 16:58:42,000 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-10-17 16:58:42,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-17 16:58:42,005 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:42,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:58:43,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:43,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 42 states and 59 transitions. [2022-10-17 16:58:43,112 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 59 transitions. [2022-10-17 16:58:43,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 16:58:43,113 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:43,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:43,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:58:43,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:43,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 46 states and 65 transitions. [2022-10-17 16:58:43,714 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 65 transitions. [2022-10-17 16:58:43,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-17 16:58:43,715 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:43,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:44,448 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-17 16:58:47,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:47,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 62 states and 97 transitions. [2022-10-17 16:58:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 97 transitions. [2022-10-17 16:58:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-17 16:58:47,671 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:47,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:48,143 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-17 16:58:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:58:50,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 68 states and 108 transitions. [2022-10-17 16:58:50,139 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 108 transitions. [2022-10-17 16:58:50,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:58:50,143 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:58:50,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:58:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:58:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:59:04,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:04,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 84 states and 156 transitions. [2022-10-17 16:59:04,511 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 156 transitions. [2022-10-17 16:59:04,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-17 16:59:04,513 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:04,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:04,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-17 16:59:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:59:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 84 states and 153 transitions. [2022-10-17 16:59:05,647 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 153 transitions. [2022-10-17 16:59:05,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-17 16:59:05,648 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:59:05,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:59:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:59:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 16 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.