./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/lis_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 03:38:14,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 03:38:14,029 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 03:38:14,089 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 03:38:14,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 03:38:14,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 03:38:14,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 03:38:14,100 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 03:38:14,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 03:38:14,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 03:38:14,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 03:38:14,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 03:38:14,113 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 03:38:14,115 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 03:38:14,116 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 03:38:14,118 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 03:38:14,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 03:38:14,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 03:38:14,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 03:38:14,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 03:38:14,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 03:38:14,129 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 03:38:14,131 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 03:38:14,132 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 03:38:14,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 03:38:14,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 03:38:14,136 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 03:38:14,137 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 03:38:14,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 03:38:14,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 03:38:14,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 03:38:14,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 03:38:14,141 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 03:38:14,142 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 03:38:14,143 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 03:38:14,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 03:38:14,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 03:38:14,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 03:38:14,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 03:38:14,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 03:38:14,147 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 03:38:14,148 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-10-29 03:38:14,174 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 03:38:14,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 03:38:14,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 03:38:14,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 03:38:14,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 03:38:14,177 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 03:38:14,177 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-29 03:38:14,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 03:38:14,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 03:38:14,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 03:38:14,178 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-10-29 03:38:14,178 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-10-29 03:38:14,178 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-10-29 03:38:14,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 03:38:14,179 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 03:38:14,179 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 03:38:14,179 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-10-29 03:38:14,179 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-10-29 03:38:14,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 03:38:14,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:38:14,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 03:38:14,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 03:38:14,180 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-10-29 03:38:14,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 03:38:14,181 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_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 302a384d858b88c7c93de8a2b1030a1c448a13b5bf510dfc42e11e1c01d4bd66 [2021-10-29 03:38:14,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 03:38:14,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 03:38:14,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 03:38:14,467 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 03:38:14,467 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 03:38:14,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/../../sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-29 03:38:14,548 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/data/7e4ce7820/37bb0ee7a0eb4d20b6e2dffc031afd7b/FLAG347584a31 [2021-10-29 03:38:15,065 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 03:38:15,066 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/sv-benchmarks/c/array-memsafety/lis_unsafe.i [2021-10-29 03:38:15,080 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/data/7e4ce7820/37bb0ee7a0eb4d20b6e2dffc031afd7b/FLAG347584a31 [2021-10-29 03:38:15,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/data/7e4ce7820/37bb0ee7a0eb4d20b6e2dffc031afd7b [2021-10-29 03:38:15,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 03:38:15,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 03:38:15,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 03:38:15,389 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 03:38:15,392 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 03:38:15,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ca8c60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15, skipping insertion in model container [2021-10-29 03:38:15,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 03:38:15,451 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 03:38:15,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:38:15,749 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 03:38:15,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 03:38:15,815 INFO L208 MainTranslator]: Completed translation [2021-10-29 03:38:15,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15 WrapperNode [2021-10-29 03:38:15,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 03:38:15,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 03:38:15,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 03:38:15,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 03:38:15,825 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 03:38:15,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 03:38:15,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 03:38:15,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 03:38:15,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 03:38:15,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 03:38:15,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 03:38:15,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 03:38:15,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:38:15" (1/1) ... [2021-10-29 03:38:15,898 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-10-29 03:38:15,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/z3 [2021-10-29 03:38:15,921 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-10-29 03:38:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-10-29 03:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 03:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 03:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-29 03:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 03:38:15,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 03:38:15,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 03:38:16,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 03:38:16,542 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-29 03:38:16,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:38:16 BoogieIcfgContainer [2021-10-29 03:38:16,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 03:38:16,546 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-10-29 03:38:16,546 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-10-29 03:38:16,556 INFO L275 PluginConnector]: CodeCheck initialized [2021-10-29 03:38:16,557 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:38:16" (1/1) ... [2021-10-29 03:38:16,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 03:38:16,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:16,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 58 states and 64 transitions. [2021-10-29 03:38:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2021-10-29 03:38:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:38:16,608 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:16,609 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:16,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:16,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:16,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 60 states and 68 transitions. [2021-10-29 03:38:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 68 transitions. [2021-10-29 03:38:16,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-10-29 03:38:16,818 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:16,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:16,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:16,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:17,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:17,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 62 states and 73 transitions. [2021-10-29 03:38:17,104 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-10-29 03:38:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:38:17,104 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:17,105 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:17,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:17,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:17,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:17,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 64 states and 77 transitions. [2021-10-29 03:38:17,433 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 77 transitions. [2021-10-29 03:38:17,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 03:38:17,434 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:17,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:17,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:18,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:18,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 67 states and 87 transitions. [2021-10-29 03:38:18,280 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2021-10-29 03:38:18,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:38:18,280 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:18,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:18,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:18,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:18,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:18,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 69 states and 95 transitions. [2021-10-29 03:38:18,723 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2021-10-29 03:38:18,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:38:18,723 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:18,723 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:18,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:18,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:18,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:18,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 70 states and 98 transitions. [2021-10-29 03:38:18,946 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 98 transitions. [2021-10-29 03:38:18,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-29 03:38:18,947 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:18,947 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:18,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:18,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:19,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:19,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 73 states and 106 transitions. [2021-10-29 03:38:19,304 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 106 transitions. [2021-10-29 03:38:19,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:38:19,305 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:19,305 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:19,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:20,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:20,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 75 states and 110 transitions. [2021-10-29 03:38:20,530 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 110 transitions. [2021-10-29 03:38:20,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:38:20,530 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:20,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:20,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:20,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:20,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 75 states and 109 transitions. [2021-10-29 03:38:20,771 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 109 transitions. [2021-10-29 03:38:20,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-10-29 03:38:20,772 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:20,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:20,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:21,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:21,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 79 states and 120 transitions. [2021-10-29 03:38:21,732 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 120 transitions. [2021-10-29 03:38:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:38:21,733 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:21,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:21,885 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:22,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:22,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 81 states and 121 transitions. [2021-10-29 03:38:22,509 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 121 transitions. [2021-10-29 03:38:22,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 03:38:22,510 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:22,511 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:22,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:23,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:23,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 86 states and 130 transitions. [2021-10-29 03:38:23,317 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 130 transitions. [2021-10-29 03:38:23,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:38:23,318 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:23,318 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:23,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:23,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:24,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 90 states and 144 transitions. [2021-10-29 03:38:24,380 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 144 transitions. [2021-10-29 03:38:24,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:38:24,381 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:24,381 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:24,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:24,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:24,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 93 states and 152 transitions. [2021-10-29 03:38:24,882 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 152 transitions. [2021-10-29 03:38:24,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:38:24,883 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:24,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:25,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:26,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:26,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 96 states and 157 transitions. [2021-10-29 03:38:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 157 transitions. [2021-10-29 03:38:26,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-29 03:38:26,436 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:26,436 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:26,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:26,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:27,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:27,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 102 states and 169 transitions. [2021-10-29 03:38:27,586 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 169 transitions. [2021-10-29 03:38:27,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:38:27,587 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:27,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:27,868 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:28,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 103 states and 170 transitions. [2021-10-29 03:38:28,417 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 170 transitions. [2021-10-29 03:38:28,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-29 03:38:28,417 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:28,418 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:28,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:30,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:30,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 110 states and 184 transitions. [2021-10-29 03:38:30,501 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 184 transitions. [2021-10-29 03:38:30,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:38:30,502 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:30,503 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:30,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:30,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:30,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:30,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 109 states and 183 transitions. [2021-10-29 03:38:30,533 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 183 transitions. [2021-10-29 03:38:30,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:38:30,534 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:30,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:30,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:30,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-29 03:38:30,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:30,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 111 states and 186 transitions. [2021-10-29 03:38:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 186 transitions. [2021-10-29 03:38:30,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-29 03:38:30,769 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:30,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 03:38:30,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 03:38:32,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-10-29 03:38:32,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 119 states and 201 transitions. [2021-10-29 03:38:32,978 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 201 transitions. [2021-10-29 03:38:32,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 03:38:32,979 INFO L427 CodeCheckObserver]: Error Path is FOUND. [2021-10-29 03:38:32,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 03:38:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:38:32,994 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:38:33,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:38:33,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:38:33,048 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 03:38:33,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 03:38:33,100 WARN L480 CodeCheckObserver]: This program is UNSAFE, Check terminated with 22 iterations. [2021-10-29 03:38:33,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 29.10 03:38:33 ImpRootNode [2021-10-29 03:38:33,125 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-10-29 03:38:33,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 03:38:33,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 03:38:33,126 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 03:38:33,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:38:16" (3/4) ... [2021-10-29 03:38:33,128 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 03:38:33,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/witness.graphml [2021-10-29 03:38:33,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 03:38:33,207 INFO L168 Benchmark]: Toolchain (without parser) took 17818.41 ms. Allocated memory was 94.4 MB in the beginning and 186.6 MB in the end (delta: 92.3 MB). Free memory was 59.3 MB in the beginning and 130.9 MB in the end (delta: -71.6 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,207 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 64.9 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:38:33,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 427.20 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 64.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.57 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 62.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,209 INFO L168 Benchmark]: Boogie Preprocessor took 26.83 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 60.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 03:38:33,210 INFO L168 Benchmark]: RCFGBuilder took 655.57 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 41.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,211 INFO L168 Benchmark]: CodeCheck took 16579.02 ms. Allocated memory was 94.4 MB in the beginning and 186.6 MB in the end (delta: 92.3 MB). Free memory was 41.6 MB in the beginning and 132.9 MB in the end (delta: -91.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,212 INFO L168 Benchmark]: Witness Printer took 79.20 ms. Allocated memory is still 186.6 MB. Free memory was 132.9 MB in the beginning and 130.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 03:38:33,216 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, 58 locations, 29 error locations. Started 1 CEGAR loops. OverallTime: 16.5s, OverallIterations: 22, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 5046312 SDtfs, 5718020 SDslu, 2097184 SDs, 0 SdLazy, 44235722 SolverSat, 10758022 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1470 GetRequests, 1180 SyntacticMatches, 24 SemanticMatches, 266 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33122 ImplicationChecksByTransitivity, 14.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 120 ConstructedInterpolants, 0 QuantifiedInterpolants, 836 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 16 PerfectInterpolantSequences, 9/19 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: 521]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L531] int *a; [L532] int N = __VERIFIER_nondet_int(); [L533] COND FALSE !(N < 1) [L514] int *best, *prev, i, j, max = 0; [L515] best = (int*) malloc(sizeof(int) * N) [L516] prev = (int*) malloc(sizeof(int) * N) [L517] i = 0 [L517] COND TRUE i < N [L518] best[i] = 1 [L518] prev[i] = i [L517] i++ [L517] COND TRUE i < N [L518] best[i] = 1 [L518] prev[i] = i [L517] i++ [L517] COND FALSE !(i < N) [L519] i = 1 [L519] COND TRUE i < N [L520] j = 0 [L520] COND TRUE j < i [L521] a[i] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 94.4 MB. Free memory was 64.9 MB in the beginning and 64.9 MB in the end (delta: 28.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 427.20 ms. Allocated memory is still 94.4 MB. Free memory was 59.0 MB in the beginning and 64.1 MB in the end (delta: -5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.57 ms. Allocated memory is still 94.4 MB. Free memory was 64.1 MB in the beginning and 62.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.83 ms. Allocated memory is still 94.4 MB. Free memory was 62.1 MB in the beginning and 60.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 655.57 ms. Allocated memory is still 94.4 MB. Free memory was 60.4 MB in the beginning and 41.6 MB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * CodeCheck took 16579.02 ms. Allocated memory was 94.4 MB in the beginning and 186.6 MB in the end (delta: 92.3 MB). Free memory was 41.6 MB in the beginning and 132.9 MB in the end (delta: -91.4 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. * Witness Printer took 79.20 ms. Allocated memory is still 186.6 MB. Free memory was 132.9 MB in the beginning and 130.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! [2021-10-29 03:38:33,269 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a013556e-bd1e-490d-ab13-bcf87e5fcfc6/bin/ukojak-Rh5K9KB4LI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...