./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8 --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 dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 --- 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-2329fc7 [2022-12-13 19:18:24,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:18:24,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:18:24,052 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:18:24,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:18:24,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:18:24,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:18:24,056 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:18:24,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:18:24,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:18:24,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:18:24,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:18:24,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:18:24,061 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:18:24,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:18:24,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:18:24,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:18:24,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:18:24,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:18:24,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:18:24,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:18:24,071 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:18:24,072 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:18:24,073 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:18:24,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:18:24,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:18:24,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:18:24,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:18:24,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:18:24,078 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:18:24,079 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:18:24,079 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:18:24,080 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:18:24,081 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:18:24,082 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:18:24,082 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:18:24,083 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:18:24,083 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:18:24,083 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:18:24,084 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:18:24,084 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:18:24,085 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 19:18:24,098 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:18:24,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:18:24,098 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:18:24,099 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:18:24,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:18:24,099 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:18:24,099 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:18:24,100 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:18:24,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:18:24,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:18:24,101 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:18:24,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:18:24,102 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 [2022-12-13 19:18:24,275 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:18:24,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:18:24,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:18:24,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:18:24,297 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:18:24,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:26,997 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:18:27,251 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:18:27,252 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:27,264 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/b25627663/697f3494c4394174a3f7fafd690d19e0/FLAG95b0f8e04 [2022-12-13 19:18:27,276 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/b25627663/697f3494c4394174a3f7fafd690d19e0 [2022-12-13 19:18:27,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:18:27,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:18:27,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:27,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:18:27,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:18:27,283 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:27" (1/1) ... [2022-12-13 19:18:27,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7375ec14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:27, skipping insertion in model container [2022-12-13 19:18:27,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:27" (1/1) ... [2022-12-13 19:18:27,289 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:18:27,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:18:27,547 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:18:27,855 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:18:27,859 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:27,861 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:27,862 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:27,863 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:27,881 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:18:27,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:27,888 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:18:27,901 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:18:27,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:18:27,931 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:27,932 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:27,933 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:27,934 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:27,938 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:18:27,938 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:28,046 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:18:28,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28 WrapperNode [2022-12-13 19:18:28,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:28,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:28,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:18:28,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:18:28,053 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,098 INFO L138 Inliner]: procedures = 499, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 67 [2022-12-13 19:18:28,099 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:28,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:18:28,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:18:28,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:18:28,107 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,111 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,111 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,118 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,120 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:18:28,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:18:28,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:18:28,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:18:28,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (1/1) ... [2022-12-13 19:18:28,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:18:28,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:28,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:18:28,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:18:28,186 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:18:28,186 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:18:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-13 19:18:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-13 19:18:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:18:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:18:28,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:18:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:18:28,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:18:28,284 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:18:28,286 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:18:28,426 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:18:28,431 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:18:28,431 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:18:28,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:28 BoogieIcfgContainer [2022-12-13 19:18:28,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:18:28,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:18:28,435 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:18:28,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:18:28,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:18:27" (1/3) ... [2022-12-13 19:18:28,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2928e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:28, skipping insertion in model container [2022-12-13 19:18:28,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:28" (2/3) ... [2022-12-13 19:18:28,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2928e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:28, skipping insertion in model container [2022-12-13 19:18:28,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:28" (3/3) ... [2022-12-13 19:18:28,440 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:28,455 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:18:28,455 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:18:28,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:18:28,495 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;@18614077, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:18:28,495 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:18:28,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:18:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 19:18:28,503 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:28,504 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:28,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:18:28,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:28,508 INFO L85 PathProgramCache]: Analyzing trace with hash -641348316, now seen corresponding path program 1 times [2022-12-13 19:18:28,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:28,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898002503] [2022-12-13 19:18:28,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:28,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:28,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:18:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:28,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:18:28,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:28,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 19:18:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:28,756 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:18:28,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:28,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898002503] [2022-12-13 19:18:28,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898002503] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:28,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504796755] [2022-12-13 19:18:28,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:28,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:28,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:28,758 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:28,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 19:18:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:28,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:18:28,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 19:18:28,872 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:18:28,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504796755] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:28,873 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:18:28,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 19:18:28,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615843786] [2022-12-13 19:18:28,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:28,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:18:28,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:28,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:18:28,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:28,909 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:28,940 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2022-12-13 19:18:28,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:18:28,942 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2022-12-13 19:18:28,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:28,949 INFO L225 Difference]: With dead ends: 42 [2022-12-13 19:18:28,949 INFO L226 Difference]: Without dead ends: 28 [2022-12-13 19:18:28,951 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:28,955 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 10 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:28,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 60 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:28,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-12-13 19:18:28,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-12-13 19:18:28,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 20 states have internal predecessors, (23), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:18:28,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-12-13 19:18:28,986 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 21 [2022-12-13 19:18:28,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:28,987 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-12-13 19:18:28,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:28,987 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-12-13 19:18:28,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 19:18:28,989 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:28,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:28,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:18:29,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 19:18:29,192 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:18:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:29,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1593038750, now seen corresponding path program 1 times [2022-12-13 19:18:29,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:29,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351679970] [2022-12-13 19:18:29,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:29,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:29,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 19:18:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:29,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 19:18:29,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:29,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 19:18:29,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:29,430 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 19:18:29,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:18:29,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351679970] [2022-12-13 19:18:29,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351679970] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 19:18:29,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585009195] [2022-12-13 19:18:29,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:29,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:29,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:29,432 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 19:18:29,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 19:18:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:29,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 19:18:29,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:29,516 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 19:18:29,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:18:29,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585009195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:29,516 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 19:18:29,516 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 19:18:29,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626540570] [2022-12-13 19:18:29,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:29,517 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:18:29,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:18:29,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:18:29,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:29,519 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:29,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:29,528 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-12-13 19:18:29,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:18:29,529 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 19:18:29,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:29,530 INFO L225 Difference]: With dead ends: 29 [2022-12-13 19:18:29,530 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 19:18:29,530 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 19:18:29,531 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:29,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 41 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:29,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 19:18:29,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 19:18:29,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.1875) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 19:18:29,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-12-13 19:18:29,536 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 22 [2022-12-13 19:18:29,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:29,537 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-12-13 19:18:29,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:29,537 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-12-13 19:18:29,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 19:18:29,538 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:29,538 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:29,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 19:18:29,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 19:18:29,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:18:29,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:29,742 INFO L85 PathProgramCache]: Analyzing trace with hash 2020647561, now seen corresponding path program 1 times [2022-12-13 19:18:29,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:18:29,743 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596992976] [2022-12-13 19:18:29,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:29,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:18:29,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:18:29,880 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:18:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:18:29,930 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:18:29,930 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:18:29,931 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:18:29,933 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:18:29,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:18:29,937 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 19:18:29,940 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:18:29,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:18:29 BoogieIcfgContainer [2022-12-13 19:18:29,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:18:29,968 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:18:29,968 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:18:29,968 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:18:29,968 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:28" (3/4) ... [2022-12-13 19:18:29,971 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 19:18:29,971 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:18:29,972 INFO L158 Benchmark]: Toolchain (without parser) took 2693.06ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 110.4MB in the beginning and 110.8MB in the end (delta: -398.4kB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,972 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:18:29,973 INFO L158 Benchmark]: CACSL2BoogieTranslator took 767.65ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 110.0MB in the beginning and 135.3MB in the end (delta: -25.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,973 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.24ms. Allocated memory is still 176.2MB. Free memory was 135.3MB in the beginning and 132.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,974 INFO L158 Benchmark]: Boogie Preprocessor took 24.82ms. Allocated memory is still 176.2MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,974 INFO L158 Benchmark]: RCFGBuilder took 307.80ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 116.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,975 INFO L158 Benchmark]: TraceAbstraction took 1532.75ms. Allocated memory is still 176.2MB. Free memory was 115.3MB in the beginning and 110.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-12-13 19:18:29,975 INFO L158 Benchmark]: Witness Printer took 3.22ms. Allocated memory is still 176.2MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:18:29,977 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 146.8MB. Free memory is still 121.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 767.65ms. Allocated memory was 146.8MB in the beginning and 176.2MB in the end (delta: 29.4MB). Free memory was 110.0MB in the beginning and 135.3MB in the end (delta: -25.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.24ms. Allocated memory is still 176.2MB. Free memory was 135.3MB in the beginning and 132.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.82ms. Allocated memory is still 176.2MB. Free memory was 132.1MB in the beginning and 130.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 307.80ms. Allocated memory is still 176.2MB. Free memory was 130.0MB in the beginning and 116.4MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1532.75ms. Allocated memory is still 176.2MB. Free memory was 115.3MB in the beginning and 110.8MB in the end (delta: 4.5MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Witness Printer took 3.22ms. Allocated memory is still 176.2MB. Free memory is still 110.8MB. 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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] [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483649:2147483651}, argv={2147483649:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_11_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] 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()=1, rand()=65536, rand()=4, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] --data VAL [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: 1559]: 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 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13 mSDsluCounter, 101 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 63 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 6, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 109 NumberOfCodeBlocks, 109 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 8/12 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 [2022-12-13 19:18:29,991 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/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_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8 --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 dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 --- 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-2329fc7 [2022-12-13 19:18:31,653 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:18:31,655 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:18:31,681 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:18:31,681 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:18:31,682 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:18:31,683 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:18:31,684 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:18:31,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:18:31,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:18:31,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:18:31,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:18:31,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:18:31,689 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:18:31,690 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:18:31,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:18:31,691 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:18:31,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:18:31,693 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:18:31,695 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:18:31,696 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:18:31,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:18:31,698 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:18:31,699 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:18:31,701 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:18:31,701 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:18:31,702 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:18:31,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:18:31,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:18:31,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:18:31,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:18:31,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:18:31,705 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:18:31,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:18:31,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:18:31,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:18:31,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:18:31,707 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:18:31,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:18:31,708 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:18:31,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:18:31,709 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 19:18:31,726 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:18:31,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:18:31,727 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:18:31,727 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:18:31,727 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:18:31,727 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:18:31,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:18:31,728 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:18:31,728 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:18:31,728 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:18:31,728 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 19:18:31,729 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 19:18:31,730 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:18:31,730 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 19:18:31,730 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:18:31,730 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:18:31,730 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:18:31,730 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:18:31,730 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:18:31,731 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 19:18:31,732 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:18:31,732 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbe2ca349e0667d8692126dce502d970e06290e62c46f46043e6bad80040db74 [2022-12-13 19:18:31,959 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:18:31,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:18:31,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:18:31,977 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:18:31,977 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:18:31,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:34,587 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:18:34,862 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:18:34,863 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:34,883 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/9f85d2534/33937d5890604a55a0ae60fefdf0c97e/FLAGc4583ba81 [2022-12-13 19:18:34,898 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/data/9f85d2534/33937d5890604a55a0ae60fefdf0c97e [2022-12-13 19:18:34,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:18:34,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:18:34,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:34,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:18:34,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:18:34,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:34" (1/1) ... [2022-12-13 19:18:34,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@395105b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:34, skipping insertion in model container [2022-12-13 19:18:34,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:18:34" (1/1) ... [2022-12-13 19:18:34,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:18:34,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:18:35,264 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:18:35,623 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:18:35,628 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:35,629 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:35,631 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:35,632 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:35,653 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:18:35,654 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:35,667 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:18:35,685 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 19:18:35,729 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 19:18:35,731 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:35,732 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 19:18:35,734 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:35,734 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 19:18:35,739 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 19:18:35,739 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:18:35,830 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:18:35,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35 WrapperNode [2022-12-13 19:18:35,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:18:35,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:35,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:18:35,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:18:35,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,853 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,872 INFO L138 Inliner]: procedures = 504, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 65 [2022-12-13 19:18:35,872 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:18:35,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:18:35,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:18:35,873 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:18:35,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,882 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,882 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,889 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,892 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,895 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:18:35,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:18:35,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:18:35,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:18:35,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (1/1) ... [2022-12-13 19:18:35,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:18:35,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:18:35,918 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:18:35,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:18:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 19:18:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 19:18:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure globalReturnsTrue [2022-12-13 19:18:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure globalReturnsTrue [2022-12-13 19:18:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 19:18:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:18:35,945 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:18:35,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:18:35,946 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 19:18:36,051 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:18:36,053 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:18:36,162 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:18:36,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:18:36,169 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 19:18:36,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:36 BoogieIcfgContainer [2022-12-13 19:18:36,170 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:18:36,172 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:18:36,173 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:18:36,175 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:18:36,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:18:34" (1/3) ... [2022-12-13 19:18:36,176 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5971b385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:36, skipping insertion in model container [2022-12-13 19:18:36,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:18:35" (2/3) ... [2022-12-13 19:18:36,177 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5971b385 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:18:36, skipping insertion in model container [2022-12-13 19:18:36,177 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:36" (3/3) ... [2022-12-13 19:18:36,178 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_11_bad.i [2022-12-13 19:18:36,193 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:18:36,193 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 19:18:36,225 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:18:36,230 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;@20ab96d2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:18:36,230 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 19:18:36,234 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 19:18:36,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-12-13 19:18:36,241 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:36,242 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:36,242 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:18:36,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:36,247 INFO L85 PathProgramCache]: Analyzing trace with hash -894708504, now seen corresponding path program 1 times [2022-12-13 19:18:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:18:36,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373336473] [2022-12-13 19:18:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:36,259 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:18:36,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:18:36,260 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:18:36,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 19:18:36,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:18:36,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 19:18:36,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 19:18:36,423 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:18:36,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 19:18:36,424 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 19:18:36,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373336473] [2022-12-13 19:18:36,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373336473] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:18:36,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:18:36,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 19:18:36,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923858890] [2022-12-13 19:18:36,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:18:36,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 19:18:36,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 19:18:36,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 19:18:36,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:36,454 INFO L87 Difference]: Start difference. First operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 21 states have internal predecessors, (25), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:36,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 19:18:36,481 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2022-12-13 19:18:36,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 19:18:36,483 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 19 [2022-12-13 19:18:36,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 19:18:36,490 INFO L225 Difference]: With dead ends: 47 [2022-12-13 19:18:36,490 INFO L226 Difference]: Without dead ends: 19 [2022-12-13 19:18:36,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 19:18:36,496 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 19:18:36,497 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 19:18:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-12-13 19:18:36,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-12-13 19:18:36,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 13 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 19:18:36,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2022-12-13 19:18:36,528 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2022-12-13 19:18:36,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 19:18:36,529 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2022-12-13 19:18:36,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 19:18:36,530 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2022-12-13 19:18:36,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-12-13 19:18:36,531 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 19:18:36,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 19:18:36,541 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 19:18:36,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:18:36,733 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 19:18:36,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:18:36,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2082070403, now seen corresponding path program 1 times [2022-12-13 19:18:36,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 19:18:36,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1835140705] [2022-12-13 19:18:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:18:36,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:18:36,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 19:18:36,737 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 19:18:36,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 19:18:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:18:36,832 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:18:36,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:18:36,881 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 19:18:36,881 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:18:36,883 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 19:18:36,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 19:18:36,893 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 19:18:37,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 19:18:37,096 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 19:18:37,109 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:18:37,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:18:37 BoogieIcfgContainer [2022-12-13 19:18:37,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:18:37,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:18:37,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:18:37,170 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:18:37,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:18:36" (3/4) ... [2022-12-13 19:18:37,172 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 19:18:37,211 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:18:37,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:18:37,212 INFO L158 Benchmark]: Toolchain (without parser) took 2309.52ms. Allocated memory is still 83.9MB. Free memory was 59.4MB in the beginning and 52.9MB in the end (delta: 6.5MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,212 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:18:37,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 927.38ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 35.8MB in the end (delta: 23.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,213 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.46ms. Allocated memory is still 83.9MB. Free memory was 35.8MB in the beginning and 57.1MB in the end (delta: -21.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,213 INFO L158 Benchmark]: Boogie Preprocessor took 22.70ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,213 INFO L158 Benchmark]: RCFGBuilder took 274.63ms. Allocated memory is still 83.9MB. Free memory was 55.0MB in the beginning and 41.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,214 INFO L158 Benchmark]: TraceAbstraction took 997.26ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 55.5MB in the end (delta: -15.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,214 INFO L158 Benchmark]: Witness Printer took 41.13ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 52.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:18:37,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 58.7MB. Free memory was 37.0MB in the beginning and 36.9MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 927.38ms. Allocated memory is still 83.9MB. Free memory was 59.2MB in the beginning and 35.8MB in the end (delta: 23.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.46ms. Allocated memory is still 83.9MB. Free memory was 35.8MB in the beginning and 57.1MB in the end (delta: -21.3MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.70ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 55.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 274.63ms. Allocated memory is still 83.9MB. Free memory was 55.0MB in the beginning and 41.4MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 997.26ms. Allocated memory is still 83.9MB. Free memory was 40.6MB in the beginning and 55.5MB in the end (delta: -15.0MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Witness Printer took 41.13ms. Allocated memory is still 83.9MB. Free memory was 55.5MB in the beginning and 52.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a 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] [L1568] 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) [L1568] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL CWE191_Integer_Underflow__int_rand_predec_11_bad() [L1550] int data; [L1551] data = 0 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] [L1552] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1552] RET globalReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1552] COND TRUE globalReturnsTrue() [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] 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()=65536, rand()=0, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] CALL globalReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1512] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1556] RET globalReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalReturnsTrue()=1, globalTrue=1] [L1556] COND TRUE globalReturnsTrue() [L1559] --data VAL [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: 1559]: 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 3 procedures, 28 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 proved your program to be incorrect! [2022-12-13 19:18:37,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6b482f5-cf83-4e9f-94ca-e11a9434936d/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)