./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN --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 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 05:42:42,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 05:42:42,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 05:42:42,126 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 05:42:42,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 05:42:42,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 05:42:42,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 05:42:42,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 05:42:42,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 05:42:42,149 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 05:42:42,150 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 05:42:42,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 05:42:42,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 05:42:42,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 05:42:42,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 05:42:42,163 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 05:42:42,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 05:42:42,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 05:42:42,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 05:42:42,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 05:42:42,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 05:42:42,181 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 05:42:42,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 05:42:42,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 05:42:42,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 05:42:42,192 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 05:42:42,192 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 05:42:42,195 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 05:42:42,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 05:42:42,197 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 05:42:42,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 05:42:42,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 05:42:42,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 05:42:42,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 05:42:42,204 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 05:42:42,204 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 05:42:42,205 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 05:42:42,205 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 05:42:42,205 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 05:42:42,206 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 05:42:42,207 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 05:42:42,208 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2021-11-21 05:42:42,255 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 05:42:42,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 05:42:42,258 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 05:42:42,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 05:42:42,258 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 05:42:42,259 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 05:42:42,259 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 05:42:42,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 05:42:42,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 05:42:42,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 05:42:42,260 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 05:42:42,261 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 05:42:42,261 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 05:42:42,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 05:42:42,261 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 05:42:42,262 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 05:42:42,262 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-21 05:42:42,262 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-21 05:42:42,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 05:42:42,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:42:42,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 05:42:42,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 05:42:42,263 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-21 05:42:42,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 05:42:42,264 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_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 10a3b461143c2c5d394f7bd34cd6fefed4195b79a5252178f7ede404a303cf96 [2021-11-21 05:42:42,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 05:42:42,594 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 05:42:42,596 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 05:42:42,597 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 05:42:42,598 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 05:42:42,599 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/../../sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-11-21 05:42:42,678 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/data/73236547e/ec3dc2885323441c97911a69bd13f8c0/FLAG1508baf7c [2021-11-21 05:42:43,272 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 05:42:43,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/sv-benchmarks/c/array-memsafety/cstrchr_unsafe.i [2021-11-21 05:42:43,286 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/data/73236547e/ec3dc2885323441c97911a69bd13f8c0/FLAG1508baf7c [2021-11-21 05:42:43,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/data/73236547e/ec3dc2885323441c97911a69bd13f8c0 [2021-11-21 05:42:43,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 05:42:43,560 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 05:42:43,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 05:42:43,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 05:42:43,564 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 05:42:43,565 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:43,566 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52902e70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43, skipping insertion in model container [2021-11-21 05:42:43,566 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:43,573 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 05:42:43,608 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 05:42:43,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:42:43,915 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 05:42:43,954 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 05:42:43,981 INFO L208 MainTranslator]: Completed translation [2021-11-21 05:42:43,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43 WrapperNode [2021-11-21 05:42:43,981 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 05:42:43,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 05:42:43,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 05:42:43,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 05:42:43,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,002 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,022 INFO L137 Inliner]: procedures = 118, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2021-11-21 05:42:44,022 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 05:42:44,023 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 05:42:44,023 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 05:42:44,023 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 05:42:44,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,035 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 05:42:44,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 05:42:44,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 05:42:44,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 05:42:44,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:42:43" (1/1) ... [2021-11-21 05:42:44,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-21 05:42:44,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/z3 [2021-11-21 05:42:44,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-21 05:42:44,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-21 05:42:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 05:42:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 05:42:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 05:42:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 05:42:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 05:42:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 05:42:44,244 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 05:42:44,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 05:42:44,472 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 05:42:44,591 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 05:42:44,592 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 05:42:44,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:42:44 BoogieIcfgContainer [2021-11-21 05:42:44,594 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 05:42:44,595 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2021-11-21 05:42:44,595 INFO L271 PluginConnector]: Initializing CodeCheck... [2021-11-21 05:42:44,613 INFO L275 PluginConnector]: CodeCheck initialized [2021-11-21 05:42:44,613 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:42:44" (1/1) ... [2021-11-21 05:42:44,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 05:42:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:44,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 31 states and 34 transitions. [2021-11-21 05:42:44,674 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 34 transitions. [2021-11-21 05:42:44,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:42:44,676 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:44,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:44,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:44,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:44,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:44,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 30 states and 33 transitions. [2021-11-21 05:42:44,959 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-11-21 05:42:44,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:42:44,960 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:44,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:44,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:45,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:45,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 32 states and 37 transitions. [2021-11-21 05:42:45,351 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 37 transitions. [2021-11-21 05:42:45,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:42:45,353 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:45,354 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:45,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:45,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:45,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:45,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2021-11-21 05:42:45,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-11-21 05:42:45,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 05:42:45,388 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:45,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:45,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:45,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2021-11-21 05:42:45,734 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2021-11-21 05:42:45,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:42:45,734 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:45,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:45,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:45,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:45,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 33 states and 39 transitions. [2021-11-21 05:42:45,845 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2021-11-21 05:42:45,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 05:42:45,845 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:45,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:45,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:45,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:46,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 35 states and 43 transitions. [2021-11-21 05:42:46,298 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 43 transitions. [2021-11-21 05:42:46,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:42:46,298 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:46,298 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:46,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:46,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:47,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:47,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 38 states and 51 transitions. [2021-11-21 05:42:47,078 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 51 transitions. [2021-11-21 05:42:47,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 05:42:47,078 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:47,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:47,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:47,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:47,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 39 states and 55 transitions. [2021-11-21 05:42:47,526 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 55 transitions. [2021-11-21 05:42:47,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:42:47,527 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:47,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:47,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:47,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 40 states and 58 transitions. [2021-11-21 05:42:48,121 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 58 transitions. [2021-11-21 05:42:48,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:42:48,122 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:48,122 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:48,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:48,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:48,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 39 states and 57 transitions. [2021-11-21 05:42:48,180 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 57 transitions. [2021-11-21 05:42:48,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 05:42:48,181 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:48,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:48,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:48,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:48,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 38 states and 56 transitions. [2021-11-21 05:42:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 56 transitions. [2021-11-21 05:42:48,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:42:48,248 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:48,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:48,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 34 states and 44 transitions. [2021-11-21 05:42:48,735 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2021-11-21 05:42:48,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:42:48,736 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:48,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:48,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:48,842 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:49,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 31 states and 37 transitions. [2021-11-21 05:42:49,142 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2021-11-21 05:42:49,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:42:49,142 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:49,143 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:49,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:49,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-21 05:42:49,171 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-21 05:42:49,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:42:49,172 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:49,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:49,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:49,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:49,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 27 states and 32 transitions. [2021-11-21 05:42:49,227 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2021-11-21 05:42:49,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 05:42:49,227 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:49,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:49,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:49,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:49,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 28 states and 33 transitions. [2021-11-21 05:42:49,509 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2021-11-21 05:42:49,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:42:49,510 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:49,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:49,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 05:42:49,697 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 05:42:50,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2021-11-21 05:42:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 26 states and 29 transitions. [2021-11-21 05:42:50,137 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2021-11-21 05:42:50,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 05:42:50,138 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2021-11-21 05:42:50,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 05:42:50,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:42:50,151 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:42:50,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:42:50,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:42:50,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 05:42:50,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 05:42:50,238 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 18 iterations. [2021-11-21 05:42:50,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 05:42:50 ImpRootNode [2021-11-21 05:42:50,281 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2021-11-21 05:42:50,282 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 05:42:50,282 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 05:42:50,282 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 05:42:50,283 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:42:44" (3/4) ... [2021-11-21 05:42:50,285 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-21 05:42:50,326 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/witness.graphml [2021-11-21 05:42:50,327 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 05:42:50,328 INFO L158 Benchmark]: Toolchain (without parser) took 6767.63ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 58.7MB in the beginning and 96.3MB in the end (delta: -37.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-21 05:42:50,329 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:42:50,329 INFO L158 Benchmark]: CACSL2BoogieTranslator took 420.65ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 62.5MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 05:42:50,330 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.05ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:42:50,331 INFO L158 Benchmark]: Boogie Preprocessor took 24.57ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 59.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:42:50,331 INFO L158 Benchmark]: RCFGBuilder took 545.68ms. Allocated memory is still 94.4MB. Free memory was 59.1MB in the beginning and 44.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-21 05:42:50,332 INFO L158 Benchmark]: CodeCheck took 5686.65ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 44.0MB in the beginning and 98.4MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 05:42:50,333 INFO L158 Benchmark]: Witness Printer took 44.83ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 05:42:50,337 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, 31 locations, 16 error locations. Started 1 CEGAR loops. OverallTime: 5.6s, OverallIterations: 18, 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, 374 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 320 mSDsluCounter, 204 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 131 mSDsCounter, 462 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1504 IncrementalHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 462 mSolverCounterUnsat, 88 mSDtfsCounter, 1504 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 807 GetRequests, 675 SyntacticMatches, 28 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4522 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 74 ConstructedInterpolants, 0 QuantifiedInterpolants, 642 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 2/19 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: 537]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L536] CALL, EXPR build_nondet_String() [L515] int length = __VERIFIER_nondet_int(); [L516] COND FALSE !(length < 1) [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; VAL [i=0, length=1, nondetString={5840:0}] [L521] COND FALSE !(i < length - 1) VAL [i=0, length=1, nondetString={5840:0}] [L526] nondetString[length-1] = '\0' [L527] return nondetString; [L536] RET, EXPR build_nondet_String() [L536] char* s = build_nondet_String(); [L537] CALL cstrchr(s,__VERIFIER_nondet_int()) [L531] EXPR \read(*s) [L531] *s != '\0' && *s != (char)c VAL [*s != '\0' && *s != (char)c=0, \old(c)=1, \read(*s)=0, c=1, s={5840:0}, s={5840:0}] [L531] COND FALSE !(*s != '\0' && *s != (char)c) [L533] EXPR \read(*s) [L533] EXPR (*s == c) ? (char *) s : 0 [L533] return ( (*s == c) ? (char *) s : 0 ); [L537] RET cstrchr(s,__VERIFIER_nondet_int()) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 94.4MB. Free memory was 65.0MB in the beginning and 64.9MB in the end (delta: 28.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 420.65ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 62.5MB in the end (delta: -4.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.05ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 60.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.57ms. Allocated memory is still 94.4MB. Free memory was 60.4MB in the beginning and 59.1MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 545.68ms. Allocated memory is still 94.4MB. Free memory was 59.1MB in the beginning and 44.4MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 5686.65ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 44.0MB in the beginning and 98.4MB in the end (delta: -54.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 44.83ms. Allocated memory is still 136.3MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2021-11-21 05:42:50,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac426645-4e40-4ee9-976f-659dc3cebc5a/bin/ukojak-vF6T2TMglN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)