./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i -s /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak --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 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 04:38:33,852 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 04:38:33,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 04:38:33,915 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 04:38:33,916 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 04:38:33,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 04:38:33,928 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 04:38:33,931 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 04:38:33,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 04:38:33,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 04:38:33,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 04:38:33,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 04:38:33,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 04:38:33,944 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 04:38:33,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 04:38:33,947 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 04:38:33,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 04:38:33,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 04:38:33,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 04:38:33,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 04:38:33,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 04:38:33,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 04:38:33,964 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 04:38:33,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 04:38:33,972 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 04:38:33,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 04:38:33,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 04:38:33,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 04:38:33,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 04:38:33,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 04:38:33,982 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 04:38:33,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 04:38:33,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 04:38:33,987 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 04:38:33,989 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 04:38:33,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 04:38:33,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 04:38:33,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 04:38:33,991 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 04:38:33,991 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 04:38:33,992 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 04:38:33,993 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2020-11-28 04:38:34,024 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 04:38:34,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 04:38:34,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 04:38:34,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 04:38:34,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 04:38:34,029 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 04:38:34,029 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 04:38:34,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 04:38:34,030 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 04:38:34,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 04:38:34,031 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-11-28 04:38:34,031 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-11-28 04:38:34,032 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-11-28 04:38:34,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 04:38:34,032 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 04:38:34,032 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 04:38:34,033 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2020-11-28 04:38:34,033 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2020-11-28 04:38:34,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 04:38:34,033 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 04:38:34,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:34,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 04:38:34,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 04:38:34,034 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2020-11-28 04:38:34,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 04:38:34,035 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-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a3019657b4c9b0e8c0aa3e888313d420fe28d28 [2020-11-28 04:38:34,304 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 04:38:34,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 04:38:34,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 04:38:34,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 04:38:34,333 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 04:38:34,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/../../sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2020-11-28 04:38:34,426 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/data/a32a78177/6f1150bf16274bc7bafb4a98182217e7/FLAGb603e5cfa [2020-11-28 04:38:34,930 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 04:38:34,931 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/sv-benchmarks/c/array-memsafety/cstrpbrk_unsafe.i [2020-11-28 04:38:34,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/data/a32a78177/6f1150bf16274bc7bafb4a98182217e7/FLAGb603e5cfa [2020-11-28 04:38:35,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/data/a32a78177/6f1150bf16274bc7bafb4a98182217e7 [2020-11-28 04:38:35,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 04:38:35,244 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 04:38:35,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:35,245 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 04:38:35,248 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 04:38:35,249 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718a7a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35, skipping insertion in model container [2020-11-28 04:38:35,251 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,265 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 04:38:35,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 04:38:35,596 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:35,614 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 04:38:35,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 04:38:35,742 INFO L208 MainTranslator]: Completed translation [2020-11-28 04:38:35,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35 WrapperNode [2020-11-28 04:38:35,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 04:38:35,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:35,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 04:38:35,746 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 04:38:35,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 04:38:35,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 04:38:35,817 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 04:38:35,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 04:38:35,825 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,827 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,842 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,844 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... [2020-11-28 04:38:35,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 04:38:35,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 04:38:35,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 04:38:35,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 04:38:35,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:38:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2020-11-28 04:38:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 04:38:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 04:38:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-28 04:38:35,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 04:38:35,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 04:38:35,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 04:38:36,781 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 04:38:36,781 INFO L298 CfgBuilder]: Removed 14 assume(true) statements. [2020-11-28 04:38:36,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36 BoogieIcfgContainer [2020-11-28 04:38:36,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 04:38:36,786 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2020-11-28 04:38:36,786 INFO L271 PluginConnector]: Initializing CodeCheck... [2020-11-28 04:38:36,797 INFO L275 PluginConnector]: CodeCheck initialized [2020-11-28 04:38:36,798 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (1/1) ... [2020-11-28 04:38:36,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 04:38:36,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:36,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 54 states and 61 transitions. [2020-11-28 04:38:36,846 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 61 transitions. [2020-11-28 04:38:36,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:36,848 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:36,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:37,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:37,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 53 states and 60 transitions. [2020-11-28 04:38:37,031 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 60 transitions. [2020-11-28 04:38:37,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:37,032 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:37,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:37,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 55 states and 64 transitions. [2020-11-28 04:38:37,399 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2020-11-28 04:38:37,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:37,399 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:37,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:37,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:37,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 54 states and 63 transitions. [2020-11-28 04:38:37,451 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2020-11-28 04:38:37,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 04:38:37,451 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:37,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:37,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:37,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:37,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 55 states and 65 transitions. [2020-11-28 04:38:37,848 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2020-11-28 04:38:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:37,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:37,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:38,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 58 states and 72 transitions. [2020-11-28 04:38:38,730 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 72 transitions. [2020-11-28 04:38:38,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:38,730 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:38,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:39,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 59 states and 74 transitions. [2020-11-28 04:38:39,089 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2020-11-28 04:38:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:39,090 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:39,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 58 states and 73 transitions. [2020-11-28 04:38:39,160 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2020-11-28 04:38:39,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:39,161 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:39,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:39,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 60 states and 77 transitions. [2020-11-28 04:38:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-11-28 04:38:39,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:39,248 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:39,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:39,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 59 states and 76 transitions. [2020-11-28 04:38:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2020-11-28 04:38:39,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 04:38:39,282 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:39,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:39,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 61 states and 81 transitions. [2020-11-28 04:38:39,468 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 81 transitions. [2020-11-28 04:38:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:38:39,468 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:40,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:40,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 63 states and 85 transitions. [2020-11-28 04:38:40,112 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 85 transitions. [2020-11-28 04:38:40,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 04:38:40,113 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:40,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:40,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:41,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 67 states and 93 transitions. [2020-11-28 04:38:41,303 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-11-28 04:38:41,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:38:41,304 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:41,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:41,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:41,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 60 states and 79 transitions. [2020-11-28 04:38:41,867 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 79 transitions. [2020-11-28 04:38:41,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:38:41,867 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:41,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:41,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:41,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 61 states and 79 transitions. [2020-11-28 04:38:41,978 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2020-11-28 04:38:41,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 04:38:41,978 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:41,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:42,000 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:42,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 62 states and 82 transitions. [2020-11-28 04:38:42,300 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 82 transitions. [2020-11-28 04:38:42,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:42,300 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:42,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:42,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:43,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:43,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 64 states and 87 transitions. [2020-11-28 04:38:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 87 transitions. [2020-11-28 04:38:43,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:43,803 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:43,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:43,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:43,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 63 states and 86 transitions. [2020-11-28 04:38:43,850 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 86 transitions. [2020-11-28 04:38:43,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:43,850 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:43,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:44,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 65 states and 89 transitions. [2020-11-28 04:38:44,727 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 89 transitions. [2020-11-28 04:38:44,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:44,727 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:44,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 66 states and 92 transitions. [2020-11-28 04:38:45,495 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2020-11-28 04:38:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 04:38:45,496 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:45,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-28 04:38:46,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:46,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 67 states and 95 transitions. [2020-11-28 04:38:46,461 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 95 transitions. [2020-11-28 04:38:46,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:38:46,462 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:46,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 71 states and 103 transitions. [2020-11-28 04:38:47,643 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2020-11-28 04:38:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:38:47,644 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:47,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:49,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:49,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 75 states and 113 transitions. [2020-11-28 04:38:49,366 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 113 transitions. [2020-11-28 04:38:49,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-28 04:38:49,367 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 04:38:49,494 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 04:38:49,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2020-11-28 04:38:49,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 69 states and 96 transitions. [2020-11-28 04:38:49,651 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 96 transitions. [2020-11-28 04:38:49,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 04:38:49,652 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2020-11-28 04:38:49,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:49,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:49,679 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:49,738 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:49,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 04:38:49,754 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 04:38:49,800 WARN L483 CodeCheckObserver]: This program is UNSAFE, Check terminated with 24 iterations. [2020-11-28 04:38:49,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 28.11 04:38:49 ImpRootNode [2020-11-28 04:38:49,826 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2020-11-28 04:38:49,827 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 04:38:49,827 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 04:38:49,827 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 04:38:49,828 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:38:36" (3/4) ... [2020-11-28 04:38:49,830 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 04:38:49,877 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb51e261-d21e-4afa-a308-aa10e4626cc4/bin/ukojak/witness.graphml [2020-11-28 04:38:49,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 04:38:49,880 INFO L168 Benchmark]: Toolchain (without parser) took 14635.02 ms. Allocated memory was 107.0 MB in the beginning and 209.7 MB in the end (delta: 102.8 MB). Free memory was 79.6 MB in the beginning and 102.8 MB in the end (delta: -23.2 MB). Peak memory consumption was 79.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,881 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 107.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 04:38:49,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.99 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 72.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.40 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,883 INFO L168 Benchmark]: Boogie Preprocessor took 51.84 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,884 INFO L168 Benchmark]: RCFGBuilder took 915.47 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 68.6 MB in the beginning and 97.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,885 INFO L168 Benchmark]: CodeCheck took 13040.52 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 97.4 MB in the beginning and 104.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,886 INFO L168 Benchmark]: Witness Printer took 51.05 ms. Allocated memory is still 209.7 MB. Free memory was 104.9 MB in the beginning and 102.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 04:38:49,890 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, 54 locations, 27 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.9s, OverallIterations: 24, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 17302168 SDtfs, 24734040 SDslu, 10781184 SDs, 0 SdLazy, 115828616 SolverSat, 39853032 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1306 GetRequests, 1083 SyntacticMatches, 39 SemanticMatches, 184 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15982 ImplicationChecksByTransitivity, 11.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 152 NumberOfCodeBlocks, 152 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 119 ConstructedInterpolants, 0 QuantifiedInterpolants, 5177 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 23 InterpolantComputations, 16 PerfectInterpolantSequences, 3/19 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: 548]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L515] int length = __VERIFIER_nondet_int(); [L516] COND TRUE length < 1 [L517] length = 1 [L519] char* nondetString = (char*) malloc(length * sizeof(char)); [L521] int i = 0; [L521] COND FALSE !(i < length - 1) [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L546] char* s1 = 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; [L521] COND FALSE !(i < length - 1) [L527] nondetString[length-1] = '\0' [L528] return nondetString; [L547] char* s2 = build_nondet_String(); [L532] const char *sc1; [L533] const char *s; [L534] int c; [L535] sc1 = s1 [L535] EXPR \read(*sc1) [L535] COND FALSE !(*sc1 != '\0') [L543] return 0; * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 107.0 MB. Free memory is still 63.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.99 ms. Allocated memory is still 107.0 MB. Free memory was 79.4 MB in the beginning and 72.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.40 ms. Allocated memory is still 107.0 MB. Free memory was 72.2 MB in the beginning and 70.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.84 ms. Allocated memory is still 107.0 MB. Free memory was 70.0 MB in the beginning and 68.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 915.47 ms. Allocated memory was 107.0 MB in the beginning and 144.7 MB in the end (delta: 37.7 MB). Free memory was 68.6 MB in the beginning and 97.4 MB in the end (delta: -28.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * CodeCheck took 13040.52 ms. Allocated memory was 144.7 MB in the beginning and 209.7 MB in the end (delta: 65.0 MB). Free memory was 97.4 MB in the beginning and 104.9 MB in the end (delta: -7.5 MB). Peak memory consumption was 57.8 MB. Max. memory is 16.1 GB. * Witness Printer took 51.05 ms. Allocated memory is still 209.7 MB. Free memory was 104.9 MB in the beginning and 102.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...