./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrlen_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrlen_unsafe.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ --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 1fa4bda6bd30ba2cdf5e016e12b6593fa4b1ef45b4dc13eb01e28da7c534ab67 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 18:09:34,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 18:09:34,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 18:09:34,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 18:09:34,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 18:09:34,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 18:09:34,352 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 18:09:34,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 18:09:34,357 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 18:09:34,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 18:09:34,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 18:09:34,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 18:09:34,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 18:09:34,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 18:09:34,372 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 18:09:34,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 18:09:34,377 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 18:09:34,378 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 18:09:34,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 18:09:34,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 18:09:34,388 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 18:09:34,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 18:09:34,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 18:09:34,392 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 18:09:34,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 18:09:34,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 18:09:34,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 18:09:34,405 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 18:09:34,405 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 18:09:34,406 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 18:09:34,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 18:09:34,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 18:09:34,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 18:09:34,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 18:09:34,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 18:09:34,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 18:09:34,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 18:09:34,414 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 18:09:34,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 18:09:34,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 18:09:34,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 18:09:34,417 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-11-20 18:09:34,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 18:09:34,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 18:09:34,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 18:09:34,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 18:09:34,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 18:09:34,477 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 18:09:34,477 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 18:09:34,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 18:09:34,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 18:09:34,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 18:09:34,479 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 18:09:34,479 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 18:09:34,479 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 18:09:34,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 18:09:34,480 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 18:09:34,480 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 18:09:34,480 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-11-20 18:09:34,480 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-11-20 18:09:34,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 18:09:34,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:09:34,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 18:09:34,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 18:09:34,481 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-11-20 18:09:34,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 18:09:34,482 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_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fa4bda6bd30ba2cdf5e016e12b6593fa4b1ef45b4dc13eb01e28da7c534ab67 [2022-11-20 18:09:34,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 18:09:34,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 18:09:34,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 18:09:34,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 18:09:34,825 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 18:09:34,826 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/../../sv-benchmarks/c/array-memsafety/cstrlen_unsafe.i [2022-11-20 18:09:37,782 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 18:09:38,102 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 18:09:38,103 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/sv-benchmarks/c/array-memsafety/cstrlen_unsafe.i [2022-11-20 18:09:38,117 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/data/f7d3ff2b0/09bd89a33ca34c9396a772866806fad4/FLAG74d747434 [2022-11-20 18:09:38,131 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/data/f7d3ff2b0/09bd89a33ca34c9396a772866806fad4 [2022-11-20 18:09:38,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 18:09:38,135 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 18:09:38,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 18:09:38,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 18:09:38,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 18:09:38,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29bd6cc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38, skipping insertion in model container [2022-11-20 18:09:38,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 18:09:38,180 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 18:09:38,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:09:38,534 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 18:09:38,593 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 18:09:38,618 INFO L208 MainTranslator]: Completed translation [2022-11-20 18:09:38,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38 WrapperNode [2022-11-20 18:09:38,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 18:09:38,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 18:09:38,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 18:09:38,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 18:09:38,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,681 INFO L138 Inliner]: procedures = 118, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-11-20 18:09:38,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 18:09:38,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 18:09:38,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 18:09:38,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 18:09:38,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,710 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,719 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,720 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 18:09:38,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 18:09:38,724 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 18:09:38,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 18:09:38,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:09:38" (1/1) ... [2022-11-20 18:09:38,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-11-20 18:09:38,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/z3 [2022-11-20 18:09:38,774 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-11-20 18:09:38,805 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-11-20 18:09:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 18:09:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 18:09:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 18:09:38,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 18:09:38,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 18:09:38,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 18:09:38,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 18:09:38,980 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 18:09:39,198 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 18:09:39,260 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 18:09:39,262 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 18:09:39,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:09:39 BoogieIcfgContainer [2022-11-20 18:09:39,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 18:09:39,273 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-11-20 18:09:39,273 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-11-20 18:09:39,283 INFO L275 PluginConnector]: CodeCheck initialized [2022-11-20 18:09:39,284 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:09:39" (1/1) ... [2022-11-20 18:09:39,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 18:09:39,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:39,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 22 states and 24 transitions. [2022-11-20 18:09:39,372 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-20 18:09:39,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:09:39,374 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:39,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:39,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:39,596 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:39,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:39,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 21 states and 23 transitions. [2022-11-20 18:09:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-20 18:09:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:09:39,662 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:39,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:39,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:40,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:40,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:40,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 23 states and 28 transitions. [2022-11-20 18:09:40,307 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2022-11-20 18:09:40,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:09:40,308 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:40,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:40,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:40,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:40,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 23 states and 29 transitions. [2022-11-20 18:09:40,748 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-11-20 18:09:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 18:09:40,748 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:40,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:40,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:40,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:41,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:41,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 25 states and 33 transitions. [2022-11-20 18:09:41,616 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 33 transitions. [2022-11-20 18:09:41,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:09:41,618 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:41,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:41,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:41,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:41,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 26 states and 34 transitions. [2022-11-20 18:09:41,751 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2022-11-20 18:09:41,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-20 18:09:41,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:41,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:41,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:42,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:42,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:42,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2022-11-20 18:09:42,671 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-11-20 18:09:42,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:09:42,672 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:42,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:42,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:43,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:44,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:44,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 31 states and 49 transitions. [2022-11-20 18:09:44,395 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 49 transitions. [2022-11-20 18:09:44,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 18:09:44,396 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:46,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:46,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 33 states and 57 transitions. [2022-11-20 18:09:46,580 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 57 transitions. [2022-11-20 18:09:46,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:09:46,580 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:46,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:48,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 35 states and 62 transitions. [2022-11-20 18:09:48,500 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 62 transitions. [2022-11-20 18:09:48,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:09:48,501 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:48,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:48,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:49,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 36 states and 63 transitions. [2022-11-20 18:09:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 63 transitions. [2022-11-20 18:09:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 18:09:49,013 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:49,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:49,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:50,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 38 states and 69 transitions. [2022-11-20 18:09:50,252 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2022-11-20 18:09:50,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:09:50,253 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:50,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:52,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:52,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 40 states and 78 transitions. [2022-11-20 18:09:52,643 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 78 transitions. [2022-11-20 18:09:52,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:09:52,644 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:52,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:52,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:53,509 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:55,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:55,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 86 transitions. [2022-11-20 18:09:55,986 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 86 transitions. [2022-11-20 18:09:55,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:09:55,987 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:55,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:55,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:58,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:58,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 44 states and 86 transitions. [2022-11-20 18:09:58,154 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 86 transitions. [2022-11-20 18:09:58,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-20 18:09:58,155 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:58,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:09:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:09:59,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:09:59,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 48 states and 92 transitions. [2022-11-20 18:09:59,535 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 92 transitions. [2022-11-20 18:09:59,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:09:59,536 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:09:59,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:09:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 18:10:00,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 18:10:01,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-11-20 18:10:01,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 29 states and 33 transitions. [2022-11-20 18:10:01,522 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-20 18:10:01,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 18:10:01,522 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-11-20 18:10:01,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 18:10:01,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:10:01,542 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:10:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:10:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:10:01,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 18:10:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 18:10:01,643 WARN L475 CodeCheckObserver]: This program is UNSAFE, Check terminated with 17 iterations. [2022-11-20 18:10:01,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 20.11 06:10:01 ImpRootNode [2022-11-20 18:10:01,700 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-11-20 18:10:01,700 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 18:10:01,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 18:10:01,701 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 18:10:01,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:09:39" (3/4) ... [2022-11-20 18:10:01,703 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 18:10:01,784 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/witness.graphml [2022-11-20 18:10:01,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 18:10:01,785 INFO L158 Benchmark]: Toolchain (without parser) took 23649.88ms. Allocated memory is still 169.9MB. Free memory was 140.0MB in the beginning and 101.6MB in the end (delta: 38.4MB). Peak memory consumption was 36.6MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,785 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 82.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 18:10:01,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 483.20ms. Allocated memory is still 169.9MB. Free memory was 139.8MB in the beginning and 123.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.14ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 121.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,787 INFO L158 Benchmark]: Boogie Preprocessor took 40.21ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 120.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,788 INFO L158 Benchmark]: RCFGBuilder took 548.05ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 105.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,788 INFO L158 Benchmark]: CodeCheck took 22427.15ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 105.9MB in the end (delta: -17.1kB). Peak memory consumption was 926.9kB. Max. memory is 16.1GB. [2022-11-20 18:10:01,789 INFO L158 Benchmark]: Witness Printer took 83.84ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 101.6MB in the end (delta: 4.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 18:10:01,792 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, 22 locations, 10 error locations. Started 1 CEGAR loops. OverallTime: 22.3s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 5.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 318 mSDsluCounter, 64 SdHoareTripleChecker+Invalid, 4.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 593 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2161 IncrementalHoareTripleChecker+Invalid, 2754 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 593 mSolverCounterUnsat, 32 mSDtfsCounter, 2161 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 897 GetRequests, 671 SyntacticMatches, 30 SemanticMatches, 196 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16790 ImplicationChecksByTransitivity, 18.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 68 ConstructedInterpolants, 0 QuantifiedInterpolants, 1462 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 16 InterpolantComputations, 8 PerfectInterpolantSequences, 2/24 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: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L537] 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=2, nondetString={-1:0}] [L521] COND TRUE i < length - 1 [L523] nondetString[i] = __VERIFIER_nondet_char() [L521] i++ VAL [i=1, length=2, nondetString={-1:0}] [L521] COND FALSE !(i < length - 1) VAL [i=1, length=2, nondetString={-1:0}] [L526] nondetString[length-1] = '\0' [L527] return nondetString; [L537] RET, EXPR build_nondet_String() [L537] char* p = build_nondet_String(); [L538] CALL cstrlen(p) [L531] const char *p = s; VAL [p={-1:0}, s={-1:0}, s={-1:0}] [L532] EXPR \read(*p) VAL [\read(*p)=8, p={-1:0}, s={-1:0}, s={-1:0}] [L532] COND TRUE *p != '\0' [L533] p = p+2 VAL [p={-1:2}, s={-1:0}, s={-1:0}] [L532] \read(*p) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 127.9MB. Free memory was 96.0MB in the beginning and 96.0MB in the end (delta: 82.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 483.20ms. Allocated memory is still 169.9MB. Free memory was 139.8MB in the beginning and 123.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.14ms. Allocated memory is still 169.9MB. Free memory was 123.7MB in the beginning and 121.9MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.21ms. Allocated memory is still 169.9MB. Free memory was 121.9MB in the beginning and 120.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 548.05ms. Allocated memory is still 169.9MB. Free memory was 120.6MB in the beginning and 105.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 22427.15ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 105.9MB in the end (delta: -17.1kB). Peak memory consumption was 926.9kB. Max. memory is 16.1GB. * Witness Printer took 83.84ms. Allocated memory is still 169.9MB. Free memory was 105.9MB in the beginning and 101.6MB in the end (delta: 4.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2022-11-20 18:10:01,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_44b3db13-18cc-4871-8d94-29f88e7c3215/bin/ukojak-pZX7IvK2PQ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)