./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/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_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/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_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/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 bab1191501d9bcf67b9be9d631041d2fa19f25793bb46c191a69e4db5abb0bef --- 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 11:41:21,972 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:41:21,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:41:21,992 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:41:21,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:41:21,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:41:21,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:41:21,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:41:21,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:41:21,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:41:21,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:41:21,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:41:21,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:41:21,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:41:21,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:41:22,000 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:41:22,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:41:22,001 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:41:22,002 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:41:22,003 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:41:22,004 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:41:22,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:41:22,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:41:22,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:41:22,008 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:41:22,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:41:22,008 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:41:22,009 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:41:22,009 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:41:22,010 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:41:22,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:41:22,010 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:41:22,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:41:22,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:41:22,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:41:22,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:41:22,013 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:41:22,013 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:41:22,013 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:41:22,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:41:22,014 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:41:22,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:41:22,028 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:41:22,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:41:22,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:41:22,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:41:22,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:41:22,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:41:22,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:41:22,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:41:22,030 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:41:22,031 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:41:22,031 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:41:22,032 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:41:22,032 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:41:22,033 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:41:22,033 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:41:22,033 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_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bab1191501d9bcf67b9be9d631041d2fa19f25793bb46c191a69e4db5abb0bef [2022-12-13 11:41:22,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:41:22,228 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:41:22,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:41:22,231 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:41:22,232 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:41:22,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_08_good.i [2022-12-13 11:41:24,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:41:25,103 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:41:25,104 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_08_good.i [2022-12-13 11:41:25,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/data/d33f1e10f/44141faca8f44458979fd0ae91c6e510/FLAGa6270084f [2022-12-13 11:41:25,126 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/data/d33f1e10f/44141faca8f44458979fd0ae91c6e510 [2022-12-13 11:41:25,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:41:25,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:41:25,130 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:41:25,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:41:25,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:41:25,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:25,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1104617a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25, skipping insertion in model container [2022-12-13 11:41:25,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:25,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:41:25,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:41:25,426 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:41:25,745 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:41:25,749 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:41:25,751 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:41:25,752 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:41:25,753 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:41:25,769 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:41:25,774 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:41:25,781 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:41:25,781 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:41:25,789 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:41:25,802 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:41:25,830 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:41:25,831 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:41:25,832 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:41:25,833 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:41:25,834 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:41:25,837 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:41:25,839 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:41:25,842 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:41:25,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:41:25,965 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:41:25,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25 WrapperNode [2022-12-13 11:41:25,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:41:25,966 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:41:25,967 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:41:25,967 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:41:25,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:25,990 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,014 INFO L138 Inliner]: procedures = 506, calls = 93, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 139 [2022-12-13 11:41:26,015 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:41:26,015 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:41:26,015 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:41:26,015 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:41:26,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,025 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,034 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:41:26,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:41:26,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:41:26,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:41:26,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (1/1) ... [2022-12-13 11:41:26,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:41:26,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:26,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:41:26,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:41:26,093 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-13 11:41:26,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:41:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:41:26,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:41:26,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:41:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-13 11:41:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-13 11:41:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:41:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2022-12-13 11:41:26,095 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2022-12-13 11:41:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:41:26,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:41:26,206 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:41:26,208 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:41:26,381 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:41:26,388 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:41:26,388 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:41:26,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:41:26 BoogieIcfgContainer [2022-12-13 11:41:26,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:41:26,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:41:26,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:41:26,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:41:26,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:41:25" (1/3) ... [2022-12-13 11:41:26,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb2ec93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:41:26, skipping insertion in model container [2022-12-13 11:41:26,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:41:25" (2/3) ... [2022-12-13 11:41:26,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb2ec93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:41:26, skipping insertion in model container [2022-12-13 11:41:26,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:41:26" (3/3) ... [2022-12-13 11:41:26,397 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_08_good.i [2022-12-13 11:41:26,411 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:41:26,411 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-12-13 11:41:26,449 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:41:26,454 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;@72e19894, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:41:26,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-12-13 11:41:26,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-13 11:41:26,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 11:41:26,462 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:26,463 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:26,463 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:26,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:26,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1129302584, now seen corresponding path program 1 times [2022-12-13 11:41:26,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:26,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184273277] [2022-12-13 11:41:26,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:26,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:26,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 11:41:26,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:26,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:26,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184273277] [2022-12-13 11:41:26,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184273277] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:26,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:26,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:41:26,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032587325] [2022-12-13 11:41:26,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:26,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:41:26,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:41:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:41:26,782 INFO L87 Difference]: Start difference. First operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 11:41:26,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:26,835 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2022-12-13 11:41:26,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:41:26,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 11:41:26,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:26,844 INFO L225 Difference]: With dead ends: 156 [2022-12-13 11:41:26,845 INFO L226 Difference]: Without dead ends: 75 [2022-12-13 11:41:26,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 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 11:41:26,851 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:26,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:26,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-12-13 11:41:26,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-12-13 11:41:26,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 60 states have internal predecessors, (63), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-13 11:41:26,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-12-13 11:41:26,882 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 22 [2022-12-13 11:41:26,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:26,883 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-12-13 11:41:26,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 11:41:26,884 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-12-13 11:41:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 11:41:26,885 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:26,885 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:26,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:41:26,885 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:26,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:26,886 INFO L85 PathProgramCache]: Analyzing trace with hash 849048579, now seen corresponding path program 1 times [2022-12-13 11:41:26,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:26,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108803908] [2022-12-13 11:41:26,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:26,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:26,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:26,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:26,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:26,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:26,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:26,947 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108803908] [2022-12-13 11:41:26,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108803908] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:26,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:26,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:41:26,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500624980] [2022-12-13 11:41:26,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:26,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:26,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:26,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:26,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:26,950 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 11:41:26,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:26,976 INFO L93 Difference]: Finished difference Result 177 states and 237 transitions. [2022-12-13 11:41:26,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:26,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-12-13 11:41:26,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:26,979 INFO L225 Difference]: With dead ends: 177 [2022-12-13 11:41:26,979 INFO L226 Difference]: Without dead ends: 121 [2022-12-13 11:41:26,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:26,981 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 46 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:26,981 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 201 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:26,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-12-13 11:41:26,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 79. [2022-12-13 11:41:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:26,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 105 transitions. [2022-12-13 11:41:26,991 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 105 transitions. Word has length 24 [2022-12-13 11:41:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:26,991 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 105 transitions. [2022-12-13 11:41:26,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-12-13 11:41:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 105 transitions. [2022-12-13 11:41:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 11:41:26,992 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:26,992 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:26,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:41:26,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:26,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash 550702250, now seen corresponding path program 1 times [2022-12-13 11:41:26,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:26,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650773687] [2022-12-13 11:41:26,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:26,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:27,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:27,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:27,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:41:27,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:27,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650773687] [2022-12-13 11:41:27,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650773687] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:27,053 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:27,053 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:41:27,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411071683] [2022-12-13 11:41:27,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:27,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:27,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:27,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:27,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:27,055 INFO L87 Difference]: Start difference. First operand 79 states and 105 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 11:41:27,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:27,068 INFO L93 Difference]: Finished difference Result 79 states and 105 transitions. [2022-12-13 11:41:27,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:27,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 25 [2022-12-13 11:41:27,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:27,070 INFO L225 Difference]: With dead ends: 79 [2022-12-13 11:41:27,070 INFO L226 Difference]: Without dead ends: 78 [2022-12-13 11:41:27,071 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:27,072 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 42 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 124 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 11:41:27,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 124 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:27,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-12-13 11:41:27,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-12-13 11:41:27,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.346938775510204) internal successors, (66), 61 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:27,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 104 transitions. [2022-12-13 11:41:27,080 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 104 transitions. Word has length 25 [2022-12-13 11:41:27,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:27,081 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 104 transitions. [2022-12-13 11:41:27,081 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 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 11:41:27,081 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 104 transitions. [2022-12-13 11:41:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-12-13 11:41:27,082 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:27,082 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:27,082 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:41:27,082 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:27,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:27,083 INFO L85 PathProgramCache]: Analyzing trace with hash -893217450, now seen corresponding path program 1 times [2022-12-13 11:41:27,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:27,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774921235] [2022-12-13 11:41:27,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-12-13 11:41:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-12-13 11:41:27,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-12-13 11:41:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,168 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:41:27,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:27,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774921235] [2022-12-13 11:41:27,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774921235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:27,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:27,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:41:27,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475199531] [2022-12-13 11:41:27,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:27,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:41:27,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:27,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:41:27,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:41:27,170 INFO L87 Difference]: Start difference. First operand 78 states and 104 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:27,188 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2022-12-13 11:41:27,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:41:27,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-12-13 11:41:27,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:27,190 INFO L225 Difference]: With dead ends: 132 [2022-12-13 11:41:27,190 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 11:41:27,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 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 11:41:27,192 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:27,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:27,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 11:41:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-13 11:41:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 60 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-12-13 11:41:27,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-12-13 11:41:27,199 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 42 [2022-12-13 11:41:27,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:27,199 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-12-13 11:41:27,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,199 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-12-13 11:41:27,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-12-13 11:41:27,200 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:27,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:27,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:41:27,201 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:27,201 INFO L85 PathProgramCache]: Analyzing trace with hash -979768833, now seen corresponding path program 1 times [2022-12-13 11:41:27,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:27,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397104278] [2022-12-13 11:41:27,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:27,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:27,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:41:27,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:27,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397104278] [2022-12-13 11:41:27,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397104278] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:27,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1397410480] [2022-12-13 11:41:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:27,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:27,282 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:27,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 11:41:27,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,366 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:27,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:27,403 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:41:27,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:27,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1397410480] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:27,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:27,404 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:27,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166357164] [2022-12-13 11:41:27,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:27,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:27,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:27,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:27,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:27,405 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:27,425 INFO L93 Difference]: Finished difference Result 148 states and 190 transitions. [2022-12-13 11:41:27,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-12-13 11:41:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:27,427 INFO L225 Difference]: With dead ends: 148 [2022-12-13 11:41:27,427 INFO L226 Difference]: Without dead ends: 109 [2022-12-13 11:41:27,427 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 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 11:41:27,428 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 26 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:27,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 201 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:27,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-13 11:41:27,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 83. [2022-12-13 11:41:27,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-12-13 11:41:27,435 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 43 [2022-12-13 11:41:27,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:27,435 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-12-13 11:41:27,435 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,435 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-12-13 11:41:27,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-12-13 11:41:27,436 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:27,436 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:27,442 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:41:27,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:27,637 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:27,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:27,638 INFO L85 PathProgramCache]: Analyzing trace with hash -308062640, now seen corresponding path program 1 times [2022-12-13 11:41:27,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:27,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063588306] [2022-12-13 11:41:27,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:27,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:27,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-13 11:41:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063588306] [2022-12-13 11:41:27,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063588306] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:27,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132586263] [2022-12-13 11:41:27,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:27,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:27,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:27,723 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:27,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 11:41:27,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:27,803 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:27,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:27,825 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:41:27,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:27,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132586263] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:27,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:27,826 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:27,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564103774] [2022-12-13 11:41:27,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:27,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:27,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:27,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:27,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:27,828 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:27,846 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-12-13 11:41:27,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:27,846 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2022-12-13 11:41:27,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:27,847 INFO L225 Difference]: With dead ends: 110 [2022-12-13 11:41:27,847 INFO L226 Difference]: Without dead ends: 109 [2022-12-13 11:41:27,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 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 11:41:27,848 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 25 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:27,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 207 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:27,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-12-13 11:41:27,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2022-12-13 11:41:27,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.290909090909091) internal successors, (71), 65 states have internal predecessors, (71), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:27,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-12-13 11:41:27,855 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 44 [2022-12-13 11:41:27,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:27,855 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-12-13 11:41:27,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:27,856 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-12-13 11:41:27,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-12-13 11:41:27,856 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:27,856 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:27,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 11:41:28,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:28,057 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:28,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:28,057 INFO L85 PathProgramCache]: Analyzing trace with hash -396970406, now seen corresponding path program 1 times [2022-12-13 11:41:28,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:28,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974311364] [2022-12-13 11:41:28,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:28,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:28,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:28,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:28,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:41:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,125 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:41:28,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:28,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974311364] [2022-12-13 11:41:28,125 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974311364] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:28,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:28,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:41:28,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3556704] [2022-12-13 11:41:28,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:28,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:28,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:28,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:28,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:28,127 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 11:41:28,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:28,145 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2022-12-13 11:41:28,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:28,146 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2022-12-13 11:41:28,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:28,147 INFO L225 Difference]: With dead ends: 108 [2022-12-13 11:41:28,147 INFO L226 Difference]: Without dead ends: 107 [2022-12-13 11:41:28,147 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:28,148 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 31 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:28,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 200 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:28,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-12-13 11:41:28,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2022-12-13 11:41:28,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:28,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-12-13 11:41:28,155 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 45 [2022-12-13 11:41:28,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:28,155 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-12-13 11:41:28,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-12-13 11:41:28,155 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-12-13 11:41:28,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-12-13 11:41:28,156 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:28,156 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:28,156 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:41:28,156 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:28,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:28,156 INFO L85 PathProgramCache]: Analyzing trace with hash 578819413, now seen corresponding path program 1 times [2022-12-13 11:41:28,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:28,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028245506] [2022-12-13 11:41:28,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:28,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:28,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-12-13 11:41:28,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-12-13 11:41:28,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:28,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028245506] [2022-12-13 11:41:28,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028245506] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:28,216 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:41:28,216 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 11:41:28,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191554685] [2022-12-13 11:41:28,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:28,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:28,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:28,218 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:28,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:28,230 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-12-13 11:41:28,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:28,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-12-13 11:41:28,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:28,231 INFO L225 Difference]: With dead ends: 83 [2022-12-13 11:41:28,231 INFO L226 Difference]: Without dead ends: 82 [2022-12-13 11:41:28,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:41:28,232 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 27 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 135 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 11:41:28,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 135 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:28,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-12-13 11:41:28,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-12-13 11:41:28,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 61 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:28,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2022-12-13 11:41:28,239 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 46 [2022-12-13 11:41:28,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:28,239 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2022-12-13 11:41:28,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-12-13 11:41:28,239 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2022-12-13 11:41:28,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-12-13 11:41:28,240 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:28,240 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:28,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:41:28,240 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:28,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:28,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1554069230, now seen corresponding path program 1 times [2022-12-13 11:41:28,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:28,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233617711] [2022-12-13 11:41:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:28,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:28,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:28,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:28,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:28,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,321 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 11:41:28,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:28,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233617711] [2022-12-13 11:41:28,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233617711] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:28,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1890523071] [2022-12-13 11:41:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:28,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:28,322 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:28,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 11:41:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:28,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:28,421 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 11:41:28,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:28,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1890523071] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:28,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:28,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967993075] [2022-12-13 11:41:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:28,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:28,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:28,424 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 11:41:28,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:28,436 INFO L93 Difference]: Finished difference Result 80 states and 105 transitions. [2022-12-13 11:41:28,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:28,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2022-12-13 11:41:28,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:28,444 INFO L225 Difference]: With dead ends: 80 [2022-12-13 11:41:28,444 INFO L226 Difference]: Without dead ends: 79 [2022-12-13 11:41:28,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 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 11:41:28,444 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 15 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:28,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:28,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-12-13 11:41:28,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2022-12-13 11:41:28,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 60 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2022-12-13 11:41:28,450 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 55 [2022-12-13 11:41:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:28,451 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2022-12-13 11:41:28,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 11:41:28,451 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2022-12-13 11:41:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-12-13 11:41:28,452 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:28,452 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:28,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 11:41:28,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-12-13 11:41:28,652 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:28,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:28,653 INFO L85 PathProgramCache]: Analyzing trace with hash -931505736, now seen corresponding path program 1 times [2022-12-13 11:41:28,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:28,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560629422] [2022-12-13 11:41:28,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:28,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:28,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:28,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:28,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:28,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,730 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-13 11:41:28,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:28,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560629422] [2022-12-13 11:41:28,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560629422] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:28,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425272149] [2022-12-13 11:41:28,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:28,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:28,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:28,731 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:28,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 11:41:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:28,809 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:28,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 11:41:28,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:28,825 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425272149] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:28,825 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:28,825 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:28,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887902356] [2022-12-13 11:41:28,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:28,826 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:28,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:28,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:28,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:28,827 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 11:41:28,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:28,842 INFO L93 Difference]: Finished difference Result 97 states and 127 transitions. [2022-12-13 11:41:28,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:28,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2022-12-13 11:41:28,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:28,844 INFO L225 Difference]: With dead ends: 97 [2022-12-13 11:41:28,844 INFO L226 Difference]: Without dead ends: 96 [2022-12-13 11:41:28,844 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 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 11:41:28,845 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 11 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 179 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 11:41:28,845 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 179 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:28,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-12-13 11:41:28,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2022-12-13 11:41:28,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 63 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2022-12-13 11:41:28,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2022-12-13 11:41:28,856 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 56 [2022-12-13 11:41:28,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:28,856 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2022-12-13 11:41:28,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-12-13 11:41:28,857 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2022-12-13 11:41:28,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-12-13 11:41:28,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:28,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:28,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 11:41:29,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:29,061 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:29,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:29,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1831872358, now seen corresponding path program 1 times [2022-12-13 11:41:29,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:29,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140368504] [2022-12-13 11:41:29,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:29,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:29,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:29,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:29,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:29,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-12-13 11:41:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,243 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-12-13 11:41:29,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:29,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140368504] [2022-12-13 11:41:29,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140368504] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:29,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746971373] [2022-12-13 11:41:29,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:29,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:29,245 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:29,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 11:41:29,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:29,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-12-13 11:41:29,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:29,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746971373] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:29,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:29,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:29,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856976251] [2022-12-13 11:41:29,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:29,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:29,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:29,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:29,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:29,354 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 11:41:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:29,365 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions. [2022-12-13 11:41:29,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:29,366 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2022-12-13 11:41:29,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:29,367 INFO L225 Difference]: With dead ends: 84 [2022-12-13 11:41:29,367 INFO L226 Difference]: Without dead ends: 83 [2022-12-13 11:41:29,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 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 11:41:29,367 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 11 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:29,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 154 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:29,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-12-13 11:41:29,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-12-13 11:41:29,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 59 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:29,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2022-12-13 11:41:29,374 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 61 [2022-12-13 11:41:29,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:29,374 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2022-12-13 11:41:29,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-12-13 11:41:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2022-12-13 11:41:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-12-13 11:41:29,375 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:29,375 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:29,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 11:41:29,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:29,576 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:29,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:29,576 INFO L85 PathProgramCache]: Analyzing trace with hash 344469670, now seen corresponding path program 1 times [2022-12-13 11:41:29,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:29,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035991692] [2022-12-13 11:41:29,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:29,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:29,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:29,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:29,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:41:29,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:41:29,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,671 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 11:41:29,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035991692] [2022-12-13 11:41:29,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035991692] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:29,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331624327] [2022-12-13 11:41:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:29,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:29,672 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:29,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 11:41:29,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:29,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:29,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:29,771 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 11:41:29,771 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:29,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1331624327] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:29,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:29,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:29,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032162987] [2022-12-13 11:41:29,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:29,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:29,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:29,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:29,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:29,773 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:29,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:29,783 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-12-13 11:41:29,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:29,783 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-12-13 11:41:29,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:29,784 INFO L225 Difference]: With dead ends: 78 [2022-12-13 11:41:29,784 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 11:41:29,785 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 11:41:29,785 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:29,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:29,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 11:41:29,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-13 11:41:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 58 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:29,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2022-12-13 11:41:29,794 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 68 [2022-12-13 11:41:29,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:29,794 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-12-13 11:41:29,794 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:29,794 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2022-12-13 11:41:29,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 11:41:29,795 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:29,795 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:29,800 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 11:41:29,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-12-13 11:41:29,996 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:29,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:29,996 INFO L85 PathProgramCache]: Analyzing trace with hash 2088625338, now seen corresponding path program 1 times [2022-12-13 11:41:29,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:29,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983743915] [2022-12-13 11:41:29,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:29,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:30,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:30,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:30,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:41:30,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:41:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 11:41:30,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:30,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983743915] [2022-12-13 11:41:30,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983743915] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:30,065 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477824250] [2022-12-13 11:41:30,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:30,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:30,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:30,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:30,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 11:41:30,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:30,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:30,166 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 11:41:30,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:30,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477824250] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:30,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:30,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:30,167 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196558705] [2022-12-13 11:41:30,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:30,168 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:30,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:30,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:30,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:30,168 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:30,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:30,179 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-12-13 11:41:30,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:30,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-12-13 11:41:30,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:30,181 INFO L225 Difference]: With dead ends: 83 [2022-12-13 11:41:30,181 INFO L226 Difference]: Without dead ends: 77 [2022-12-13 11:41:30,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 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 11:41:30,182 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:30,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:30,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-12-13 11:41:30,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-12-13 11:41:30,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-12-13 11:41:30,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2022-12-13 11:41:30,189 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 69 [2022-12-13 11:41:30,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:30,189 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2022-12-13 11:41:30,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:30,189 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2022-12-13 11:41:30,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-13 11:41:30,190 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:41:30,190 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:30,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-12-13 11:41:30,390 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-12-13 11:41:30,391 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-12-13 11:41:30,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:41:30,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1526283588, now seen corresponding path program 1 times [2022-12-13 11:41:30,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:41:30,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241049015] [2022-12-13 11:41:30,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:30,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:41:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 11:41:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 11:41:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-12-13 11:41:30,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 11:41:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-12-13 11:41:30,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-12-13 11:41:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-12-13 11:41:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-12-13 11:41:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-12-13 11:41:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-12-13 11:41:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,581 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-12-13 11:41:30,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:41:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241049015] [2022-12-13 11:41:30,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241049015] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 11:41:30,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407556431] [2022-12-13 11:41:30,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:41:30,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 11:41:30,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:41:30,583 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 11:41:30,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-12-13 11:41:30,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:41:30,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 11:41:30,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:41:30,676 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-12-13 11:41:30,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:41:30,677 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407556431] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:41:30,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 11:41:30,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-12-13 11:41:30,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349599584] [2022-12-13 11:41:30,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:41:30,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:41:30,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:41:30,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:41:30,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:41:30,678 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:30,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:41:30,683 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2022-12-13 11:41:30,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:41:30,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-12-13 11:41:30,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:41:30,684 INFO L225 Difference]: With dead ends: 77 [2022-12-13 11:41:30,684 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 11:41:30,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 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 11:41:30,685 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:41:30,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:41:30,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 11:41:30,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 11:41:30,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:41:30,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 11:41:30,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-12-13 11:41:30,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:41:30,686 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:41:30,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-12-13 11:41:30,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:41:30,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 11:41:30,688 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-12-13 11:41:30,689 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-12-13 11:41:30,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-12-13 11:41:30,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-12-13 11:41:30,892 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 11:41:31,117 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseEXIT(lines 1552 1555) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseFINAL(lines 1552 1555) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1552 1555) the Hoare annotation is: true [2022-12-13 11:41:31,118 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-13 11:41:31,118 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1613) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L902 garLoopResultBuilder]: At program point L1654(line 1654) the Hoare annotation is: true [2022-12-13 11:41:31,119 INFO L895 garLoopResultBuilder]: At program point L1646(line 1646) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point L1613(line 1613) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point L1646-1(line 1646) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1588) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point L1613-1(line 1613) no Hoare annotation was computed. [2022-12-13 11:41:31,119 INFO L899 garLoopResultBuilder]: For program point L1646-2(lines 1646 1649) no Hoare annotation was computed. [2022-12-13 11:41:31,120 INFO L895 garLoopResultBuilder]: At program point L1646-4(lines 1646 1649) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,120 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 1665 1672) the Hoare annotation is: true [2022-12-13 11:41:31,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-13 11:41:31,120 INFO L895 garLoopResultBuilder]: At program point L1638(line 1638) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,120 INFO L895 garLoopResultBuilder]: At program point L1605(line 1605) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-12-13 11:41:31,120 INFO L899 garLoopResultBuilder]: For program point L1605-1(lines 1599 1606) no Hoare annotation was computed. [2022-12-13 11:41:31,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-12-13 11:41:31,120 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 11:41:31,120 INFO L899 garLoopResultBuilder]: For program point L1564(lines 1564 1571) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1622(lines 1622 1641) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L895 garLoopResultBuilder]: At program point L1614(line 1614) the Hoare annotation is: (and (not (<= (+ |ULTIMATE.start_goodB2G2_~data~1#1| 2147483648) 0)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1574-1(lines 1574 1589) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1599(lines 1599 1606) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L899 garLoopResultBuilder]: For program point L1591(lines 1591 1621) no Hoare annotation was computed. [2022-12-13 11:41:31,121 INFO L895 garLoopResultBuilder]: At program point L1583(line 1583) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1658(lines 1658 1664) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1650(line 1650) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1650-1(lines 1650 1656) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1642(lines 1642 1657) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1609(line 1609) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: false [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1609-1(lines 1609 1620) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1634(line 1634) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L1634-1(lines 1634 1640) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 11:41:31,122 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1637) no Hoare annotation was computed. [2022-12-13 11:41:31,123 INFO L895 garLoopResultBuilder]: At program point L1626(line 1626) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,123 INFO L899 garLoopResultBuilder]: For program point L1626-1(line 1626) no Hoare annotation was computed. [2022-12-13 11:41:31,123 INFO L895 garLoopResultBuilder]: At program point L1560(line 1560) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-12-13 11:41:31,123 INFO L899 garLoopResultBuilder]: For program point L1626-2(lines 1626 1633) no Hoare annotation was computed. [2022-12-13 11:41:31,123 INFO L899 garLoopResultBuilder]: For program point L1560-1(line 1560) no Hoare annotation was computed. [2022-12-13 11:41:31,123 INFO L895 garLoopResultBuilder]: At program point L1626-3(lines 1626 1633) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,123 INFO L899 garLoopResultBuilder]: For program point L1560-2(lines 1560 1573) no Hoare annotation was computed. [2022-12-13 11:41:31,123 INFO L895 garLoopResultBuilder]: At program point L1560-4(lines 1560 1573) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-12-13 11:41:31,123 INFO L895 garLoopResultBuilder]: At program point L1618(line 1618) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0)) [2022-12-13 11:41:31,124 INFO L902 garLoopResultBuilder]: At program point L1668(line 1668) the Hoare annotation is: true [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point L1668-1(line 1668) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1637) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point L1611(lines 1611 1619) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point L1570-1(lines 1564 1571) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1613) no Hoare annotation was computed. [2022-12-13 11:41:31,124 INFO L895 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-12-13 11:41:31,124 INFO L895 garLoopResultBuilder]: At program point L1595(line 1595) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1595-1(line 1595) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1595-2(lines 1595 1608) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L895 garLoopResultBuilder]: At program point L1595-4(lines 1595 1608) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1653(line 1653) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1653-1(line 1653) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L895 garLoopResultBuilder]: At program point L1587(line 1587) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1587-1(lines 1556 1590) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1653) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L902 garLoopResultBuilder]: At program point L1670(line 1670) the Hoare annotation is: true [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1637(line 1637) no Hoare annotation was computed. [2022-12-13 11:41:31,125 INFO L899 garLoopResultBuilder]: For program point L1670-1(line 1670) no Hoare annotation was computed. [2022-12-13 11:41:31,126 INFO L899 garLoopResultBuilder]: For program point L1637-1(line 1637) no Hoare annotation was computed. [2022-12-13 11:41:31,126 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueFINAL(lines 1548 1551) no Hoare annotation was computed. [2022-12-13 11:41:31,126 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueEXIT(lines 1548 1551) no Hoare annotation was computed. [2022-12-13 11:41:31,126 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1548 1551) the Hoare annotation is: true [2022-12-13 11:41:31,129 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:41:31,131 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:41:31,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:41:31 BoogieIcfgContainer [2022-12-13 11:41:31,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:41:31,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:41:31,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:41:31,138 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:41:31,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:41:26" (3/4) ... [2022-12-13 11:41:31,141 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:41:31,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-13 11:41:31,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2022-12-13 11:41:31,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-13 11:41:31,148 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2022-12-13 11:41:31,154 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-12-13 11:41:31,154 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 11:41:31,155 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 11:41:31,155 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:41:31,155 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:41:31,196 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:41:31,196 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:41:31,196 INFO L158 Benchmark]: Toolchain (without parser) took 6067.43ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 65.2MB in the end (delta: 33.6MB). Peak memory consumption was 62.7MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,196 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:41:31,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 836.06ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 111.2MB in the end (delta: -12.5MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.28ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 107.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,197 INFO L158 Benchmark]: Boogie Preprocessor took 21.48ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 106.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:41:31,197 INFO L158 Benchmark]: RCFGBuilder took 352.48ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 88.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,198 INFO L158 Benchmark]: TraceAbstraction took 4745.26ms. Allocated memory is still 161.5MB. Free memory was 88.1MB in the beginning and 69.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,198 INFO L158 Benchmark]: Witness Printer took 58.47ms. Allocated memory is still 161.5MB. Free memory was 69.4MB in the beginning and 65.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:41:31,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 108.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 836.06ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 98.8MB in the beginning and 111.2MB in the end (delta: -12.5MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.28ms. Allocated memory is still 161.5MB. Free memory was 111.2MB in the beginning and 107.9MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.48ms. Allocated memory is still 161.5MB. Free memory was 107.9MB in the beginning and 106.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 352.48ms. Allocated memory is still 161.5MB. Free memory was 105.8MB in the beginning and 88.1MB in the end (delta: 17.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4745.26ms. Allocated memory is still 161.5MB. Free memory was 88.1MB in the beginning and 69.4MB in the end (delta: 18.7MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Witness Printer took 58.47ms. Allocated memory is still 161.5MB. Free memory was 69.4MB in the beginning and 65.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1613]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1637]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1637]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1653]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 238 mSDsluCounter, 2647 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1261 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 76 IncrementalHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1386 mSDtfsCounter, 76 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 683 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=6, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 14 MinimizatonAttempts, 136 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 91 PreInvPairs, 111 NumberOfFragments, 198 HoareAnnotationTreeSize, 91 FomulaSimplifications, 739 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FomulaSimplificationsInter, 131 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1873 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 529/569 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 - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1665]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 11:41:31,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_046a01d8-f2c0-4872-be5c-a61e7a7ecc77/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 Result: TRUE