./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 --- 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 11:46:31,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:46:31,045 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:46:31,098 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:46:31,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:46:31,105 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:46:31,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:46:31,112 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:46:31,114 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:46:31,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:46:31,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:46:31,124 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:46:31,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:46:31,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:46:31,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:46:31,131 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:46:31,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:46:31,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:46:31,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:46:31,141 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:46:31,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:46:31,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:46:31,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:46:31,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:46:31,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:46:31,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:46:31,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:46:31,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:46:31,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:46:31,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:46:31,168 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:46:31,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:46:31,170 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:46:31,171 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:46:31,172 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:46:31,173 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:46:31,173 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:46:31,174 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:46:31,174 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:46:31,175 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:46:31,176 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:46:31,177 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-20 11:46:31,218 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:46:31,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:46:31,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:46:31,219 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:46:31,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:46:31,220 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:46:31,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:46:31,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:46:31,221 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:46:31,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:46:31,222 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:46:31,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:46:31,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:46:31,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:46:31,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:46:31,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:46:31,223 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 11:46:31,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:46:31,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:46:31,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:46:31,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:46:31,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:46:31,225 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:46:31,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:31,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:46:31,226 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:46:31,226 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:46:31,226 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:46:31,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:46:31,227 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:46:31,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:46:31,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:46:31,228 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_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 [2022-11-20 11:46:31,517 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:46:31,557 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:46:31,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:46:31,562 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:46:31,563 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:46:31,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:34,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:46:35,121 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:46:35,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:35,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/7edb6853c/339b06cf155d472486ad6a2e79c7ef24/FLAG468d22e75 [2022-11-20 11:46:35,175 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/7edb6853c/339b06cf155d472486ad6a2e79c7ef24 [2022-11-20 11:46:35,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:46:35,180 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:46:35,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:35,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:46:35,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:46:35,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:35" (1/1) ... [2022-11-20 11:46:35,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392aa7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:35, skipping insertion in model container [2022-11-20 11:46:35,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:35" (1/1) ... [2022-11-20 11:46:35,196 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:46:35,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:46:35,814 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:46:36,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:36,411 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:46:36,449 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:46:36,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:36,835 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:46:36,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36 WrapperNode [2022-11-20 11:46:36,837 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:36,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:36,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:46:36,838 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:46:36,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,882 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,933 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-20 11:46:36,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:36,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:46:36,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:46:36,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:46:36,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,963 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,968 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:46:36,969 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:46:36,969 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:46:36,969 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:46:36,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (1/1) ... [2022-11-20 11:46:36,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:36,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:46:37,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:46:37,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:46:37,081 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:46:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:46:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:46:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:46:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:46:37,082 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:46:37,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:46:37,326 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:46:37,328 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:46:37,504 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:46:37,510 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:46:37,519 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:46:37,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:37 BoogieIcfgContainer [2022-11-20 11:46:37,522 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:46:37,524 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:46:37,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:46:37,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:46:37,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:46:35" (1/3) ... [2022-11-20 11:46:37,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4ecdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:37, skipping insertion in model container [2022-11-20 11:46:37,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:36" (2/3) ... [2022-11-20 11:46:37,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c4ecdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:37, skipping insertion in model container [2022-11-20 11:46:37,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:37" (3/3) ... [2022-11-20 11:46:37,536 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:37,560 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:46:37,560 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-20 11:46:37,643 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:46:37,653 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@414ab75f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:46:37,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-20 11:46:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-20 11:46:37,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 11:46:37,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:46:37,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:46:37,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 11:46:37,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:46:37,683 INFO L85 PathProgramCache]: Analyzing trace with hash 733378214, now seen corresponding path program 1 times [2022-11-20 11:46:37,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:46:37,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011726716] [2022-11-20 11:46:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:46:37,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:46:37,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:46:38,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-20 11:46:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:46:38,217 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 11:46:38,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:46:38,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011726716] [2022-11-20 11:46:38,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011726716] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:46:38,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:46:38,220 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:46:38,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600043571] [2022-11-20 11:46:38,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:46:38,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:46:38,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:46:38,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:46:38,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:46:38,259 INFO L87 Difference]: Start difference. First operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:46:38,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:46:38,287 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-11-20 11:46:38,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:46:38,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-20 11:46:38,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:46:38,297 INFO L225 Difference]: With dead ends: 22 [2022-11-20 11:46:38,298 INFO L226 Difference]: Without dead ends: 13 [2022-11-20 11:46:38,301 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:46:38,304 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:46:38,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 32 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:46:38,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-20 11:46:38,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-11-20 11:46:38,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.2) internal successors, (12), 10 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:46:38,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-11-20 11:46:38,342 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 11 [2022-11-20 11:46:38,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:46:38,343 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-11-20 11:46:38,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 11:46:38,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-11-20 11:46:38,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 11:46:38,344 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:46:38,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:46:38,345 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:46:38,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-20 11:46:38,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:46:38,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1259888207, now seen corresponding path program 1 times [2022-11-20 11:46:38,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:46:38,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919711578] [2022-11-20 11:46:38,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:46:38,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:46:38,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:46:38,382 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:46:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:46:38,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:46:38,442 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:46:38,444 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-20 11:46:38,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-20 11:46:38,447 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:46:38,451 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-20 11:46:38,455 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:46:38,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:46:38 BoogieIcfgContainer [2022-11-20 11:46:38,486 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:46:38,487 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:46:38,487 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:46:38,487 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:46:38,488 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:37" (3/4) ... [2022-11-20 11:46:38,491 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:46:38,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:46:38,493 INFO L158 Benchmark]: Toolchain (without parser) took 3312.95ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 84.2MB in the end (delta: 70.6MB). Peak memory consumption was 69.5MB. Max. memory is 16.1GB. [2022-11-20 11:46:38,493 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:46:38,494 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1656.13ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 147.1MB in the end (delta: 7.7MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2022-11-20 11:46:38,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.46ms. Allocated memory is still 190.8MB. Free memory was 147.1MB in the beginning and 143.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:46:38,495 INFO L158 Benchmark]: Boogie Preprocessor took 26.08ms. Allocated memory is still 190.8MB. Free memory was 143.9MB in the beginning and 142.9MB in the end (delta: 977.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:46:38,495 INFO L158 Benchmark]: RCFGBuilder took 553.55ms. Allocated memory is still 190.8MB. Free memory was 142.9MB in the beginning and 129.2MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 11:46:38,496 INFO L158 Benchmark]: TraceAbstraction took 961.85ms. Allocated memory is still 190.8MB. Free memory was 129.2MB in the beginning and 85.2MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-20 11:46:38,497 INFO L158 Benchmark]: Witness Printer took 5.33ms. Allocated memory is still 190.8MB. Free memory was 85.2MB in the beginning and 84.2MB in the end (delta: 977.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:46:38,499 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 125.8MB. Free memory is still 65.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1656.13ms. Allocated memory is still 190.8MB. Free memory was 154.8MB in the beginning and 147.1MB in the end (delta: 7.7MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.46ms. Allocated memory is still 190.8MB. Free memory was 147.1MB in the beginning and 143.9MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.08ms. Allocated memory is still 190.8MB. Free memory was 143.9MB in the beginning and 142.9MB in the end (delta: 977.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 553.55ms. Allocated memory is still 190.8MB. Free memory was 142.9MB in the beginning and 129.2MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 961.85ms. Allocated memory is still 190.8MB. Free memory was 129.2MB in the beginning and 85.2MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 5.33ms. Allocated memory is still 190.8MB. Free memory was 85.2MB in the beginning and 84.2MB in the end (delta: 977.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1559, overapproximation of bitwiseAnd at line 1559. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=6442450947, argc=6442450947, argv={6442450945:6442450948}, argv={6442450945:6442450948}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_rand_sub_41_bad() [L1557] int data; [L1558] data = 0 [L1559] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1559] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=2147483647, rand()=6, rand()=196607, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-6442450944] [L1559] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1560] CALL badSink(data) [L1551] data - 1 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 12 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 20 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-20 11:46:38,527 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 --- 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 11:46:41,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:46:41,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:46:41,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:46:41,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:46:41,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:46:41,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:46:41,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:46:41,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:46:41,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:46:41,096 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:46:41,097 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:46:41,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:46:41,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:46:41,100 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:46:41,101 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:46:41,102 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:46:41,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:46:41,105 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:46:41,106 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:46:41,108 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:46:41,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:46:41,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:46:41,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:46:41,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:46:41,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:46:41,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:46:41,116 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:46:41,117 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:46:41,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:46:41,118 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:46:41,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:46:41,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:46:41,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:46:41,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:46:41,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:46:41,123 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:46:41,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:46:41,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:46:41,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:46:41,126 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:46:41,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-20 11:46:41,168 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:46:41,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:46:41,169 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:46:41,169 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:46:41,170 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:46:41,170 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:46:41,170 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:46:41,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:46:41,171 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:46:41,171 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:46:41,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:46:41,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:46:41,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:46:41,172 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:46:41,172 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:46:41,173 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:46:41,173 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:46:41,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:46:41,173 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:46:41,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:46:41,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:46:41,174 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:46:41,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:46:41,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:41,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:46:41,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:46:41,178 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:46:41,178 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:46:41,179 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:46:41,180 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:46:41,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:46:41,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:46:41,180 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:46:41,181 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29d27c23ce777812d81960b8253e5e294bd67f0ff0c40e7f236235cb41a953b6 [2022-11-20 11:46:41,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:46:41,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:46:41,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:46:41,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:46:41,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:46:41,682 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:44,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:46:45,320 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:46:45,320 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:45,342 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/a11451746/e54ed6addbb54572bb64bf463365b42e/FLAG1fd680fcc [2022-11-20 11:46:45,366 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/data/a11451746/e54ed6addbb54572bb64bf463365b42e [2022-11-20 11:46:45,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:46:45,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:46:45,381 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:45,381 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:46:45,385 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:46:45,386 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:45" (1/1) ... [2022-11-20 11:46:45,388 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a2f02b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:45, skipping insertion in model container [2022-11-20 11:46:45,388 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:46:45" (1/1) ... [2022-11-20 11:46:45,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:46:45,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:46:46,000 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:46:46,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:46,671 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:46:46,698 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-20 11:46:46,784 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:46:46,985 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:46:46,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46 WrapperNode [2022-11-20 11:46:46,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:46:46,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:46,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:46:46,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:46:47,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,079 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,114 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-20 11:46:47,114 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:46:47,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:46:47,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:46:47,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:46:47,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,148 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,163 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,178 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:46:47,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:46:47,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:46:47,179 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:46:47,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (1/1) ... [2022-11-20 11:46:47,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:46:47,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:46:47,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:46:47,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:46:47,280 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-20 11:46:47,281 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-20 11:46:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:46:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:46:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:46:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:46:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-20 11:46:47,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:46:47,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:46:47,587 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:46:47,594 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:46:47,594 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:46:47,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:47 BoogieIcfgContainer [2022-11-20 11:46:47,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:46:47,600 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:46:47,600 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:46:47,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:46:47,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:46:45" (1/3) ... [2022-11-20 11:46:47,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c898983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:47, skipping insertion in model container [2022-11-20 11:46:47,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:46:46" (2/3) ... [2022-11-20 11:46:47,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c898983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:46:47, skipping insertion in model container [2022-11-20 11:46:47,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:47" (3/3) ... [2022-11-20 11:46:47,608 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_41_bad.i [2022-11-20 11:46:47,633 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:46:47,634 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 0 error locations. [2022-11-20 11:46:47,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c898983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:46:47, skipping insertion in model container [2022-11-20 11:46:47,636 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:46:47,636 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:46:47,637 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:46:47,637 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:46:47,638 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:46:47" (3/3) ... [2022-11-20 11:46:47,642 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 11:46:47,650 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-20 11:46:47,655 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-20 11:46:47,655 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-20 11:46:47,655 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-20 11:46:47,656 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 11:46:47,740 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:46:47,740 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:46:47,743 INFO L158 Benchmark]: Toolchain (without parser) took 2367.62ms. Allocated memory was 75.5MB in the beginning and 109.1MB in the end (delta: 33.6MB). Free memory was 49.7MB in the beginning and 60.0MB in the end (delta: -10.3MB). Peak memory consumption was 23.9MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,743 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:46:47,744 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1606.09ms. Allocated memory was 75.5MB in the beginning and 109.1MB in the end (delta: 33.6MB). Free memory was 49.4MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,745 INFO L158 Benchmark]: Boogie Procedure Inliner took 127.00ms. Allocated memory is still 109.1MB. Free memory was 41.4MB in the beginning and 80.3MB in the end (delta: -38.9MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,746 INFO L158 Benchmark]: Boogie Preprocessor took 61.13ms. Allocated memory is still 109.1MB. Free memory was 80.2MB in the beginning and 78.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,746 INFO L158 Benchmark]: RCFGBuilder took 418.74ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 65.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,747 INFO L158 Benchmark]: TraceAbstraction took 36.12ms. Allocated memory is still 109.1MB. Free memory was 65.0MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,748 INFO L158 Benchmark]: Witness Printer took 104.03ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 11:46:47,758 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 75.5MB. Free memory is still 54.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1606.09ms. Allocated memory was 75.5MB in the beginning and 109.1MB in the end (delta: 33.6MB). Free memory was 49.4MB in the beginning and 41.4MB in the end (delta: 8.0MB). Peak memory consumption was 41.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 127.00ms. Allocated memory is still 109.1MB. Free memory was 41.4MB in the beginning and 80.3MB in the end (delta: -38.9MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.13ms. Allocated memory is still 109.1MB. Free memory was 80.2MB in the beginning and 78.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 418.74ms. Allocated memory is still 109.1MB. Free memory was 78.2MB in the beginning and 65.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 36.12ms. Allocated memory is still 109.1MB. Free memory was 65.0MB in the beginning and 62.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 104.03ms. Allocated memory is still 109.1MB. Free memory was 62.8MB in the beginning and 60.0MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specification because the program does not contain any specification. RESULT: Ultimate proved your program to be correct! [2022-11-20 11:46:47,802 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_63bd383a-9c74-4d11-8969-d14ee7cb9834/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE