./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 01:42:42,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 01:42:42,544 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 01:42:42,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 01:42:42,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 01:42:42,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 01:42:42,580 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 01:42:42,582 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 01:42:42,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 01:42:42,586 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 01:42:42,587 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 01:42:42,589 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 01:42:42,589 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 01:42:42,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 01:42:42,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 01:42:42,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 01:42:42,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 01:42:42,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 01:42:42,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 01:42:42,605 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 01:42:42,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 01:42:42,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 01:42:42,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 01:42:42,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 01:42:42,629 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 01:42:42,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 01:42:42,636 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 01:42:42,638 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 01:42:42,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 01:42:42,640 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 01:42:42,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 01:42:42,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 01:42:42,644 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 01:42:42,645 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 01:42:42,647 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 01:42:42,648 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 01:42:42,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 01:42:42,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 01:42:42,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 01:42:42,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 01:42:42,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 01:42:42,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2021-11-23 01:42:42,686 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 01:42:42,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 01:42:42,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 01:42:42,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 01:42:42,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 01:42:42,688 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 01:42:42,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 01:42:42,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 01:42:42,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 01:42:42,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 01:42:42,689 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 01:42:42,690 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 01:42:42,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 01:42:42,690 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 01:42:42,690 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 01:42:42,691 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 01:42:42,691 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 01:42:42,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 01:42:42,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:42,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 01:42:42,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 01:42:42,692 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 01:42:42,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 01:42:42,692 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_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 528fbc32d9aa1d8a4eedfd9ab07830e3af97eea6ef37fe4df10e8aa3c9d21936 [2021-11-23 01:42:42,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 01:42:43,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 01:42:43,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 01:42:43,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 01:42:43,007 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 01:42:43,008 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/../../sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 01:42:43,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/data/57523c03d/6f10cd9bd6664a088b2a98cec98e04c6/FLAG73367e84a [2021-11-23 01:42:43,600 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 01:42:43,603 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i [2021-11-23 01:42:43,626 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/data/57523c03d/6f10cd9bd6664a088b2a98cec98e04c6/FLAG73367e84a [2021-11-23 01:42:43,920 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/data/57523c03d/6f10cd9bd6664a088b2a98cec98e04c6 [2021-11-23 01:42:43,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 01:42:43,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 01:42:43,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:43,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 01:42:43,936 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 01:42:43,936 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:43" (1/1) ... [2021-11-23 01:42:43,939 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aede7e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:43, skipping insertion in model container [2021-11-23 01:42:43,939 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:42:43" (1/1) ... [2021-11-23 01:42:43,948 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 01:42:44,006 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 01:42:44,336 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_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 01:42:44,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:44,359 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 01:42:44,392 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_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/sv-benchmarks/c/list-ext3-properties/sll_length_check-1.i[23818,23831] [2021-11-23 01:42:44,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 01:42:44,424 INFO L208 MainTranslator]: Completed translation [2021-11-23 01:42:44,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44 WrapperNode [2021-11-23 01:42:44,433 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 01:42:44,434 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:44,434 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 01:42:44,434 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 01:42:44,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,467 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,495 INFO L137 Inliner]: procedures = 125, calls = 15, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 90 [2021-11-23 01:42:44,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 01:42:44,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 01:42:44,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 01:42:44,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 01:42:44,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 01:42:44,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 01:42:44,536 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 01:42:44,536 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 01:42:44,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,547 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 01:42:44,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/z3 [2021-11-23 01:42:44,576 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 01:42:44,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 01:42:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 01:42:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 01:42:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 01:42:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 01:42:44,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 01:42:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 01:42:44,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 01:42:44,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 01:42:44,715 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 01:42:44,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 01:42:44,877 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 01:42:44,922 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 01:42:44,922 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 01:42:44,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:44 BoogieIcfgContainer [2021-11-23 01:42:44,925 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 01:42:44,926 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-23 01:42:44,926 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-23 01:42:44,936 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-23 01:42:44,936 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:44" (1/1) ... [2021-11-23 01:42:44,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 01:42:45,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:45,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 30 states and 36 transitions. [2021-11-23 01:42:45,028 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2021-11-23 01:42:45,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 01:42:45,057 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:45,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:45,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:45,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:45,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:45,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 30 states and 35 transitions. [2021-11-23 01:42:45,250 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2021-11-23 01:42:45,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:42:45,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:45,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:45,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 32 states and 39 transitions. [2021-11-23 01:42:45,496 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2021-11-23 01:42:45,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:42:45,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:45,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:45,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:45,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:45,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2021-11-23 01:42:45,638 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-11-23 01:42:45,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 01:42:45,638 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:45,639 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:45,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:45,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:45,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 30 states and 37 transitions. [2021-11-23 01:42:45,849 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-11-23 01:42:45,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 01:42:45,849 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:45,850 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:45,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:46,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:46,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2021-11-23 01:42:46,105 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2021-11-23 01:42:46,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:42:46,106 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:46,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:46,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:46,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:46,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:46,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 33 states and 41 transitions. [2021-11-23 01:42:46,539 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2021-11-23 01:42:46,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 01:42:46,541 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:46,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:47,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:47,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 36 states and 47 transitions. [2021-11-23 01:42:47,005 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 47 transitions. [2021-11-23 01:42:47,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 01:42:47,007 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:47,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:47,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:47,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 36 states and 44 transitions. [2021-11-23 01:42:47,410 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2021-11-23 01:42:47,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 01:42:47,411 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:47,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:47,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:47,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:47,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 39 states and 49 transitions. [2021-11-23 01:42:47,865 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2021-11-23 01:42:47,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-23 01:42:47,865 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:47,866 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:47,892 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:42:48,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:48,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2021-11-23 01:42:48,078 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-11-23 01:42:48,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 01:42:48,079 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:48,079 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:48,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:42:48,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:48,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 41 states and 53 transitions. [2021-11-23 01:42:48,925 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-11-23 01:42:48,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-23 01:42:48,926 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:48,927 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:48,973 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 01:42:49,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:49,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 39 states and 47 transitions. [2021-11-23 01:42:49,173 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 47 transitions. [2021-11-23 01:42:49,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:42:49,174 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:49,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:49,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:49,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 01:42:50,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:50,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 41 states and 51 transitions. [2021-11-23 01:42:50,417 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 51 transitions. [2021-11-23 01:42:50,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-23 01:42:50,418 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:50,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:50,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:42:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 45 states and 65 transitions. [2021-11-23 01:42:53,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2021-11-23 01:42:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-23 01:42:53,333 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:53,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:53,537 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 01:42:55,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:55,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 47 states and 69 transitions. [2021-11-23 01:42:55,304 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 69 transitions. [2021-11-23 01:42:55,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:42:55,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:55,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:42:55,758 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:42:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:42:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 51 states and 78 transitions. [2021-11-23 01:42:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 78 transitions. [2021-11-23 01:42:59,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 01:42:59,229 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:42:59,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:42:59,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:00,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:05,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:05,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 55 states and 91 transitions. [2021-11-23 01:43:05,412 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 91 transitions. [2021-11-23 01:43:05,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:43:05,413 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:05,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:05,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:06,146 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:43:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 74 states and 129 transitions. [2021-11-23 01:43:14,022 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 129 transitions. [2021-11-23 01:43:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 01:43:14,023 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:14,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 01:43:15,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:15,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 76 states and 138 transitions. [2021-11-23 01:43:15,437 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 138 transitions. [2021-11-23 01:43:15,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:15,439 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:15,439 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:15,891 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 01:43:20,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:20,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 84 states and 167 transitions. [2021-11-23 01:43:20,775 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 167 transitions. [2021-11-23 01:43:20,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:20,776 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:20,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:20,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:20,801 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-11-23 01:43:22,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:22,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 86 states and 177 transitions. [2021-11-23 01:43:22,254 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 177 transitions. [2021-11-23 01:43:22,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:22,255 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:22,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:22,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:22,706 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:43:28,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:28,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 94 states and 206 transitions. [2021-11-23 01:43:28,665 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 206 transitions. [2021-11-23 01:43:28,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:28,666 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:28,666 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:28,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:31,456 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:46,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:46,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 109 states and 242 transitions. [2021-11-23 01:43:46,671 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 242 transitions. [2021-11-23 01:43:46,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:46,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:46,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:46,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:48,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:54,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:54,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 113 states and 258 transitions. [2021-11-23 01:43:54,123 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 258 transitions. [2021-11-23 01:43:54,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:54,123 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:54,124 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:54,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:54,161 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-11-23 01:43:56,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:56,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 115 states and 271 transitions. [2021-11-23 01:43:56,305 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 271 transitions. [2021-11-23 01:43:56,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:56,305 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:56,306 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:56,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:43:57,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:43:57,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 117 states and 277 transitions. [2021-11-23 01:43:57,981 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 277 transitions. [2021-11-23 01:43:57,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:43:57,982 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:43:57,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:43:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:43:59,345 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 01:44:06,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 122 states and 294 transitions. [2021-11-23 01:44:06,756 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 294 transitions. [2021-11-23 01:44:06,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:44:06,756 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:06,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 124 states and 299 transitions. [2021-11-23 01:44:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 299 transitions. [2021-11-23 01:44:09,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:44:09,578 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:09,578 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:09,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:09,606 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 7 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-23 01:44:11,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:11,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 126 states and 303 transitions. [2021-11-23 01:44:11,938 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 303 transitions. [2021-11-23 01:44:11,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-11-23 01:44:11,939 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:11,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 01:44:12,069 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 01:44:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-23 01:44:13,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 128 states and 306 transitions. [2021-11-23 01:44:13,646 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 306 transitions. [2021-11-23 01:44:13,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 01:44:13,646 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-23 01:44:13,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 01:44:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:13,672 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:44:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:13,762 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 01:44:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 01:44:13,803 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 31 iterations. [2021-11-23 01:44:13,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 01:44:13 ImpRootNode [2021-11-23 01:44:13,845 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-23 01:44:13,846 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 01:44:13,846 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 01:44:13,846 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 01:44:13,847 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:42:44" (3/4) ... [2021-11-23 01:44:13,849 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 01:44:13,930 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/witness.graphml [2021-11-23 01:44:13,930 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 01:44:13,931 INFO L158 Benchmark]: Toolchain (without parser) took 90003.08ms. Allocated memory was 102.8MB in the beginning and 786.4MB in the end (delta: 683.7MB). Free memory was 64.1MB in the beginning and 366.6MB in the end (delta: -302.5MB). Peak memory consumption was 380.9MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,932 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 81.8MB in the beginning and 81.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 01:44:13,933 INFO L158 Benchmark]: CACSL2BoogieTranslator took 501.11ms. Allocated memory is still 102.8MB. Free memory was 63.8MB in the beginning and 69.2MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,934 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.78ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,934 INFO L158 Benchmark]: Boogie Preprocessor took 38.82ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 65.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,935 INFO L158 Benchmark]: RCFGBuilder took 389.27ms. Allocated memory is still 102.8MB. Free memory was 65.5MB in the beginning and 51.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,936 INFO L158 Benchmark]: CodeCheck took 88919.38ms. Allocated memory was 102.8MB in the beginning and 786.4MB in the end (delta: 683.7MB). Free memory was 51.7MB in the beginning and 369.7MB in the end (delta: -318.1MB). Peak memory consumption was 368.8MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,937 INFO L158 Benchmark]: Witness Printer took 84.71ms. Allocated memory is still 786.4MB. Free memory was 369.7MB in the beginning and 366.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 01:44:13,941 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 1 procedures, 30 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 88.8s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2288 SdHoareTripleChecker+Valid, 25.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1404 mSDsluCounter, 506 SdHoareTripleChecker+Invalid, 22.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 4279 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14777 IncrementalHoareTripleChecker+Invalid, 19056 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4279 mSolverCounterUnsat, 402 mSDtfsCounter, 14777 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5164 GetRequests, 4492 SyntacticMatches, 120 SemanticMatches, 552 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123475 ImplicationChecksByTransitivity, 83.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 11.3s InterpolantComputationTime, 528 NumberOfCodeBlocks, 528 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 475 ConstructedInterpolants, 0 QuantifiedInterpolants, 6615 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 12 PerfectInterpolantSequences, 177/362 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - CounterExampleResult [Line: 613]: not all allocated memory was freed not all allocated memory was freed We found a FailurePath: [L603] int len = 2; VAL [len=2] [L604] len < 32 && __VERIFIER_nondet_int() [L604] len < 32 && __VERIFIER_nondet_int() VAL [__VERIFIER_nondet_int()=0, len=2, len < 32 && __VERIFIER_nondet_int()=0] [L604] COND FALSE !(len < 32 && __VERIFIER_nondet_int()) [L607] CALL, EXPR sll_create(len + 1) [L575] SLL head = ((void *)0); VAL [\old(len)=3, head={0:0}, len=3] [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=3, head={0:0}, len=3, new_head={31423:0}] [L581] new_head->next = head [L582] head = new_head [L583] len-- VAL [\old(len)=3, head={31423:0}, len=2, new_head={31423:0}] [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=3, head={31423:0}, len=2, new_head={31424:0}] [L581] new_head->next = head [L582] head = new_head [L583] len-- VAL [\old(len)=3, head={31424:0}, len=1, new_head={31424:0}] [L576] COND TRUE len > 0 [L577] SLL new_head = (SLL) malloc(sizeof(struct node)); [L578] COND FALSE !(((void *)0) == new_head) VAL [\old(len)=3, head={31424:0}, len=1, new_head={31425:0}] [L581] new_head->next = head [L582] head = new_head [L583] len-- VAL [\old(len)=3, head={31425:0}, len=0, new_head={31425:0}] [L576] COND FALSE !(len > 0) [L585] return head; [L607] RET, EXPR sll_create(len + 1) [L607] SLL s = sll_create(len + 1); [L608] CALL, EXPR sll_length(s) [L588] int len = 0; VAL [head={31425:0}, head={31425:0}, len=0] [L589] COND TRUE \read(head) [L590] len++ VAL [head={31425:0}, head={31425:0}, len=1] [L591] EXPR head->next [L591] head = head->next [L589] COND TRUE \read(head) [L590] len++ VAL [head={31424:0}, head={31425:0}, len=2] [L591] EXPR head->next [L591] head = head->next [L589] COND TRUE \read(head) [L590] len++ VAL [head={31425:0}, head={31423:0}, len=3] [L591] EXPR head->next [L591] head = head->next [L589] COND FALSE !(\read(head)) [L593] return len; [L608] RET, EXPR sll_length(s) [L608] COND TRUE len != sll_length(s) [L613] reach_error() VAL [len=2, s={31425:0}] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 102.8MB. Free memory was 81.8MB in the beginning and 81.8MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 501.11ms. Allocated memory is still 102.8MB. Free memory was 63.8MB in the beginning and 69.2MB in the end (delta: -5.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.78ms. Allocated memory is still 102.8MB. Free memory was 69.2MB in the beginning and 67.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.82ms. Allocated memory is still 102.8MB. Free memory was 67.1MB in the beginning and 65.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 389.27ms. Allocated memory is still 102.8MB. Free memory was 65.5MB in the beginning and 51.7MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * CodeCheck took 88919.38ms. Allocated memory was 102.8MB in the beginning and 786.4MB in the end (delta: 683.7MB). Free memory was 51.7MB in the beginning and 369.7MB in the end (delta: -318.1MB). Peak memory consumption was 368.8MB. Max. memory is 16.1GB. * Witness Printer took 84.71ms. Allocated memory is still 786.4MB. Free memory was 369.7MB in the beginning and 366.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-23 01:44:14,025 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f662532b-dcb9-4b1b-9b26-c4ba8e81147a/bin/ukojak-LBtLqBUTdQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-memcleanup)