./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_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_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/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_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/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_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/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 ee9c59fadd23ca10e0d185310e2f0a9dbd90ddce0b1298fb9881997e2e5c616b --- 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 21:08:27,978 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 21:08:27,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 21:08:28,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 21:08:28,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 21:08:28,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 21:08:28,004 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 21:08:28,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 21:08:28,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 21:08:28,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 21:08:28,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 21:08:28,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 21:08:28,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 21:08:28,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 21:08:28,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 21:08:28,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 21:08:28,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 21:08:28,015 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 21:08:28,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 21:08:28,019 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 21:08:28,021 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 21:08:28,022 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 21:08:28,022 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 21:08:28,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 21:08:28,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 21:08:28,026 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 21:08:28,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 21:08:28,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 21:08:28,027 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 21:08:28,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 21:08:28,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 21:08:28,028 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 21:08:28,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 21:08:28,029 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 21:08:28,030 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 21:08:28,030 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 21:08:28,030 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 21:08:28,031 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 21:08:28,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 21:08:28,031 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 21:08:28,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 21:08:28,033 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 21:08:28,047 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 21:08:28,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 21:08:28,047 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 21:08:28,048 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 21:08:28,048 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 21:08:28,048 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 21:08:28,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 21:08:28,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 21:08:28,049 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 21:08:28,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 21:08:28,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 21:08:28,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 21:08:28,049 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 21:08:28,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 21:08:28,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:28,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 21:08:28,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 21:08:28,052 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 21:08:28,052 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 21:08:28,052 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 21:08:28,052 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_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9c59fadd23ca10e0d185310e2f0a9dbd90ddce0b1298fb9881997e2e5c616b [2022-12-13 21:08:28,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 21:08:28,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 21:08:28,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 21:08:28,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 21:08:28,256 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 21:08:28,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i [2022-12-13 21:08:30,786 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 21:08:31,019 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 21:08:31,020 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_21_good.i [2022-12-13 21:08:31,033 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/data/e6048eeb2/017067d336ec434ca96968df7ba82e24/FLAGaea8fd031 [2022-12-13 21:08:31,043 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/data/e6048eeb2/017067d336ec434ca96968df7ba82e24 [2022-12-13 21:08:31,045 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 21:08:31,046 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 21:08:31,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:31,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 21:08:31,050 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 21:08:31,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5250dcbc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31, skipping insertion in model container [2022-12-13 21:08:31,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 21:08:31,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 21:08:31,329 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:08:31,630 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:08:31,634 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:08:31,636 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:08:31,638 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:08:31,638 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:08:31,668 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:08:31,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:31,677 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 21:08:31,692 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 21:08:31,723 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 21:08:31,724 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:08:31,725 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 21:08:31,726 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:08:31,727 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 21:08:31,734 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 21:08:31,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 21:08:31,831 INFO L208 MainTranslator]: Completed translation [2022-12-13 21:08:31,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31 WrapperNode [2022-12-13 21:08:31,831 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 21:08:31,832 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:31,832 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 21:08:31,832 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 21:08:31,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,885 INFO L138 Inliner]: procedures = 505, calls = 68, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 110 [2022-12-13 21:08:31,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 21:08:31,886 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 21:08:31,886 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 21:08:31,886 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 21:08:31,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,896 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,899 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,899 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,911 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,912 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 21:08:31,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 21:08:31,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 21:08:31,916 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 21:08:31,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (1/1) ... [2022-12-13 21:08:31,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 21:08:31,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 21:08:31,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 21:08:31,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 21:08:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-12-13 21:08:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-12-13 21:08:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 21:08:31,980 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 21:08:31,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 21:08:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 21:08:31,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 21:08:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 21:08:31,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 21:08:32,086 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 21:08:32,087 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 21:08:32,260 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 21:08:32,265 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 21:08:32,265 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 21:08:32,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:32 BoogieIcfgContainer [2022-12-13 21:08:32,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 21:08:32,268 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 21:08:32,268 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 21:08:32,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 21:08:32,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 09:08:31" (1/3) ... [2022-12-13 21:08:32,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483dc942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:32, skipping insertion in model container [2022-12-13 21:08:32,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 09:08:31" (2/3) ... [2022-12-13 21:08:32,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483dc942 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 09:08:32, skipping insertion in model container [2022-12-13 21:08:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:32" (3/3) ... [2022-12-13 21:08:32,273 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_21_good.i [2022-12-13 21:08:32,286 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 21:08:32,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 21:08:32,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 21:08:32,327 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;@5f77a698, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 21:08:32,327 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-12-13 21:08:32,330 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 44 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) [2022-12-13 21:08:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 21:08:32,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:32,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:32,337 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:32,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:32,341 INFO L85 PathProgramCache]: Analyzing trace with hash -168397988, now seen corresponding path program 1 times [2022-12-13 21:08:32,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:32,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227192798] [2022-12-13 21:08:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:32,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,542 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 21:08:32,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:32,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227192798] [2022-12-13 21:08:32,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227192798] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:32,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:32,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:32,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705986754] [2022-12-13 21:08:32,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:32,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:32,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:32,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:32,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:32,593 INFO L87 Difference]: Start difference. First operand has 50 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 44 states have internal predecessors, (47), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 5 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:08:32,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:32,641 INFO L93 Difference]: Finished difference Result 78 states and 98 transitions. [2022-12-13 21:08:32,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:32,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-12-13 21:08:32,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:32,652 INFO L225 Difference]: With dead ends: 78 [2022-12-13 21:08:32,653 INFO L226 Difference]: Without dead ends: 59 [2022-12-13 21:08:32,655 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:32,659 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 30 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:32,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:32,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-12-13 21:08:32,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 40. [2022-12-13 21:08:32,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 35 states have internal predecessors, (38), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:08:32,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 50 transitions. [2022-12-13 21:08:32,697 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 50 transitions. Word has length 13 [2022-12-13 21:08:32,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:32,697 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 50 transitions. [2022-12-13 21:08:32,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:08:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 50 transitions. [2022-12-13 21:08:32,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 21:08:32,698 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:32,698 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:32,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 21:08:32,699 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:32,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:32,700 INFO L85 PathProgramCache]: Analyzing trace with hash -925370268, now seen corresponding path program 1 times [2022-12-13 21:08:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:32,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818014789] [2022-12-13 21:08:32,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:32,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:32,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,847 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 21:08:32,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:32,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818014789] [2022-12-13 21:08:32,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818014789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:32,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:32,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:32,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766838224] [2022-12-13 21:08:32,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:32,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:32,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:32,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:32,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:32,850 INFO L87 Difference]: Start difference. First operand 40 states and 50 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:08:32,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:32,861 INFO L93 Difference]: Finished difference Result 40 states and 50 transitions. [2022-12-13 21:08:32,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:32,861 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2022-12-13 21:08:32,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:32,862 INFO L225 Difference]: With dead ends: 40 [2022-12-13 21:08:32,862 INFO L226 Difference]: Without dead ends: 39 [2022-12-13 21:08:32,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:32,864 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 22 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 63 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 21:08:32,865 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 63 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:32,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-12-13 21:08:32,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-12-13 21:08:32,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 34 states have internal predecessors, (37), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 6 states have call successors, (6) [2022-12-13 21:08:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2022-12-13 21:08:32,873 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 14 [2022-12-13 21:08:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:32,873 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2022-12-13 21:08:32,873 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 21:08:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2022-12-13 21:08:32,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-12-13 21:08:32,874 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:32,875 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:32,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 21:08:32,875 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash -677212018, now seen corresponding path program 1 times [2022-12-13 21:08:32,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:32,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873009688] [2022-12-13 21:08:32,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-12-13 21:08:32,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:08:32,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:32,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873009688] [2022-12-13 21:08:32,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873009688] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:32,946 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:32,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:08:32,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066771132] [2022-12-13 21:08:32,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:32,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:32,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:32,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:32,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:32,947 INFO L87 Difference]: Start difference. First operand 39 states and 49 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 21:08:32,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:32,958 INFO L93 Difference]: Finished difference Result 65 states and 78 transitions. [2022-12-13 21:08:32,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:32,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-12-13 21:08:32,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:32,960 INFO L225 Difference]: With dead ends: 65 [2022-12-13 21:08:32,960 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 21:08:32,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:08:32,962 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 44 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:32,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 45 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:32,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 21:08:32,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-12-13 21:08:32,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 33 states have internal predecessors, (36), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 21:08:32,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2022-12-13 21:08:32,969 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 23 [2022-12-13 21:08:32,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:32,970 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2022-12-13 21:08:32,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 21:08:32,970 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2022-12-13 21:08:32,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 21:08:32,971 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:32,971 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:32,971 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 21:08:32,971 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:32,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1820048040, now seen corresponding path program 1 times [2022-12-13 21:08:32,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:32,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337002507] [2022-12-13 21:08:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:32,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:32,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 21:08:33,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:08:33,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:33,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337002507] [2022-12-13 21:08:33,032 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337002507] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:33,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942399568] [2022-12-13 21:08:33,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:33,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:33,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:33,034 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,045 INFO L93 Difference]: Finished difference Result 45 states and 52 transitions. [2022-12-13 21:08:33,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:33,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-12-13 21:08:33,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,047 INFO L225 Difference]: With dead ends: 45 [2022-12-13 21:08:33,047 INFO L226 Difference]: Without dead ends: 44 [2022-12-13 21:08:33,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:08:33,049 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 9 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:33,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 86 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:33,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-13 21:08:33,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 37. [2022-12-13 21:08:33,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 32 states have internal predecessors, (35), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 21:08:33,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 45 transitions. [2022-12-13 21:08:33,056 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 45 transitions. Word has length 24 [2022-12-13 21:08:33,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:33,056 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 45 transitions. [2022-12-13 21:08:33,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,056 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 45 transitions. [2022-12-13 21:08:33,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-13 21:08:33,057 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:33,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:33,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 21:08:33,057 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:33,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:33,058 INFO L85 PathProgramCache]: Analyzing trace with hash -586914303, now seen corresponding path program 1 times [2022-12-13 21:08:33,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:33,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508233010] [2022-12-13 21:08:33,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:33,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:33,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:33,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 21:08:33,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,151 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:08:33,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:33,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508233010] [2022-12-13 21:08:33,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508233010] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:33,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411959445] [2022-12-13 21:08:33,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:33,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:33,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:33,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:33,154 INFO L87 Difference]: Start difference. First operand 37 states and 45 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,164 INFO L93 Difference]: Finished difference Result 37 states and 45 transitions. [2022-12-13 21:08:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:33,165 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-12-13 21:08:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,166 INFO L225 Difference]: With dead ends: 37 [2022-12-13 21:08:33,166 INFO L226 Difference]: Without dead ends: 36 [2022-12-13 21:08:33,166 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:08:33,167 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 9 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 69 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 21:08:33,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 69 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:33,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-12-13 21:08:33,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-12-13 21:08:33,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 27 states have (on average 1.2592592592592593) internal successors, (34), 31 states have internal predecessors, (34), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 21:08:33,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2022-12-13 21:08:33,175 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 25 [2022-12-13 21:08:33,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:33,175 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2022-12-13 21:08:33,175 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, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,175 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2022-12-13 21:08:33,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 21:08:33,177 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:33,177 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:33,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 21:08:33,177 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:33,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:33,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1001144600, now seen corresponding path program 1 times [2022-12-13 21:08:33,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:33,178 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185797208] [2022-12-13 21:08:33,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:33,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 21:08:33,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,251 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-13 21:08:33,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:33,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185797208] [2022-12-13 21:08:33,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185797208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 21:08:33,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316215902] [2022-12-13 21:08:33,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:33,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:33,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:33,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:33,254 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,263 INFO L93 Difference]: Finished difference Result 50 states and 56 transitions. [2022-12-13 21:08:33,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:33,263 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2022-12-13 21:08:33,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,264 INFO L225 Difference]: With dead ends: 50 [2022-12-13 21:08:33,264 INFO L226 Difference]: Without dead ends: 43 [2022-12-13 21:08:33,264 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:08:33,265 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 21 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:33,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 74 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-12-13 21:08:33,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2022-12-13 21:08:33,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.21875) internal successors, (39), 35 states have internal predecessors, (39), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 21:08:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 49 transitions. [2022-12-13 21:08:33,272 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 49 transitions. Word has length 26 [2022-12-13 21:08:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:33,273 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 49 transitions. [2022-12-13 21:08:33,273 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-12-13 21:08:33,273 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 49 transitions. [2022-12-13 21:08:33,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-13 21:08:33,274 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:33,274 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 21:08:33,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 21:08:33,274 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:33,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:33,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1001620357, now seen corresponding path program 1 times [2022-12-13 21:08:33,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:33,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45858355] [2022-12-13 21:08:33,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:33,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 21:08:33,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:08:33,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 21:08:33,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:33,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45858355] [2022-12-13 21:08:33,349 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45858355] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,349 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,349 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:33,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467917425] [2022-12-13 21:08:33,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:33,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:33,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:33,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:33,350 INFO L87 Difference]: Start difference. First operand 43 states and 49 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 21:08:33,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,357 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2022-12-13 21:08:33,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:33,357 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 32 [2022-12-13 21:08:33,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,358 INFO L225 Difference]: With dead ends: 43 [2022-12-13 21:08:33,358 INFO L226 Difference]: Without dead ends: 42 [2022-12-13 21:08:33,358 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 21:08:33,359 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 21:08:33,359 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:33,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-12-13 21:08:33,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-12-13 21:08:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.1875) internal successors, (38), 34 states have internal predecessors, (38), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 21:08:33,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 48 transitions. [2022-12-13 21:08:33,365 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 48 transitions. Word has length 32 [2022-12-13 21:08:33,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:33,365 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 48 transitions. [2022-12-13 21:08:33,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 21:08:33,365 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 48 transitions. [2022-12-13 21:08:33,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-12-13 21:08:33,366 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 21:08:33,366 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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 21:08:33,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 21:08:33,366 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-12-13 21:08:33,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 21:08:33,367 INFO L85 PathProgramCache]: Analyzing trace with hash 985460102, now seen corresponding path program 1 times [2022-12-13 21:08:33,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 21:08:33,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412694619] [2022-12-13 21:08:33,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 21:08:33,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 21:08:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 21:08:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-12-13 21:08:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-12-13 21:08:33,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 21:08:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-12-13 21:08:33,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 21:08:33,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412694619] [2022-12-13 21:08:33,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412694619] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 21:08:33,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 21:08:33,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 21:08:33,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287192015] [2022-12-13 21:08:33,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 21:08:33,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 21:08:33,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 21:08:33,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 21:08:33,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 21:08:33,442 INFO L87 Difference]: Start difference. First operand 42 states and 48 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21:08:33,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 21:08:33,447 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-12-13 21:08:33,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 21:08:33,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 33 [2022-12-13 21:08:33,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 21:08:33,448 INFO L225 Difference]: With dead ends: 42 [2022-12-13 21:08:33,448 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 21:08:33,448 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 21:08:33,449 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 0 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 78 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 21:08:33,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 21:08:33,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 21:08:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 21:08:33,450 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 21:08:33,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 21:08:33,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2022-12-13 21:08:33,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 21:08:33,450 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 21:08:33,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 21:08:33,451 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 21:08:33,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 21:08:33,453 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-12-13 21:08:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-12-13 21:08:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-12-13 21:08:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-12-13 21:08:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-12-13 21:08:33,454 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-12-13 21:08:33,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 21:08:33,457 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 21:08:33,499 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1412 1418) the Hoare annotation is: true [2022-12-13 21:08:33,499 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-12-13 21:08:33,499 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-12-13 21:08:33,499 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-12-13 21:08:33,499 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 1426 1429) the Hoare annotation is: true [2022-12-13 21:08:33,499 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-12-13 21:08:33,499 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1567) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L895 garLoopResultBuilder]: At program point L1555(line 1555) the Hoare annotation is: false [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1591) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L902 garLoopResultBuilder]: At program point main_returnLabel#1(lines 1625 1632) the Hoare annotation is: true [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L1601(lines 1601 1610) no Hoare annotation was computed. [2022-12-13 21:08:33,500 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L902 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: true [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point L1597(line 1597) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point L1630-1(line 1630) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point L1597-2(line 1597) no Hoare annotation was computed. [2022-12-13 21:08:33,501 INFO L899 garLoopResultBuilder]: For program point L1593(lines 1593 1600) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L895 garLoopResultBuilder]: At program point L1589(line 1589) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-12-13 21:08:33,502 INFO L895 garLoopResultBuilder]: At program point L1585(line 1585) the Hoare annotation is: (and (= ~goodB2G2Static~0 1) (<= |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G2Sink_~data#1| 2147483648) 0)) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point L1606(line 1606) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point L1606-1(line 1606) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1606) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2022-12-13 21:08:33,502 INFO L899 garLoopResultBuilder]: For program point L1619(lines 1619 1624) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1553(lines 1553 1568) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1582(lines 1582 1590) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1611(lines 1611 1618) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1578(lines 1578 1592) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L902 garLoopResultBuilder]: At program point L1607(line 1607) the Hoare annotation is: true [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1574-2(line 1574) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1603(lines 1603 1609) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L899 garLoopResultBuilder]: For program point L1570(lines 1570 1577) no Hoare annotation was computed. [2022-12-13 21:08:33,503 INFO L895 garLoopResultBuilder]: At program point L1566(line 1566) the Hoare annotation is: (and (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-12-13 21:08:33,504 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-12-13 21:08:33,504 INFO L899 garLoopResultBuilder]: For program point L1566-1(lines 1551 1569) no Hoare annotation was computed. [2022-12-13 21:08:33,504 INFO L895 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: (= ~goodB2G1Static~0 0) [2022-12-13 21:08:33,504 INFO L899 garLoopResultBuilder]: For program point L1628-1(line 1628) no Hoare annotation was computed. [2022-12-13 21:08:33,504 INFO L895 garLoopResultBuilder]: At program point L1562(line 1562) the Hoare annotation is: (and (not (<= (+ 2147483648 |ULTIMATE.start_goodB2G1Sink_~data#1|) 0)) (= ~goodB2G1Static~0 0) (<= |ULTIMATE.start_goodB2G1Sink_~data#1| 2147483647)) [2022-12-13 21:08:33,507 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 21:08:33,509 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 21:08:33,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 09:08:33 BoogieIcfgContainer [2022-12-13 21:08:33,517 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 21:08:33,518 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 21:08:33,518 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 21:08:33,518 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 21:08:33,518 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 09:08:32" (3/4) ... [2022-12-13 21:08:33,521 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 21:08:33,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-12-13 21:08:33,528 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-12-13 21:08:33,532 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2022-12-13 21:08:33,533 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-12-13 21:08:33,533 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 21:08:33,533 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 21:08:33,570 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 21:08:33,571 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 21:08:33,571 INFO L158 Benchmark]: Toolchain (without parser) took 2525.01ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 104.9MB in the beginning and 77.2MB in the end (delta: 27.7MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,571 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 21:08:33,572 INFO L158 Benchmark]: CACSL2BoogieTranslator took 784.33ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 104.9MB in the beginning and 118.8MB in the end (delta: -14.0MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.63ms. Allocated memory is still 169.9MB. Free memory was 118.8MB in the beginning and 115.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,572 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 113.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,572 INFO L158 Benchmark]: RCFGBuilder took 350.91ms. Allocated memory is still 169.9MB. Free memory was 113.7MB in the beginning and 95.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,573 INFO L158 Benchmark]: TraceAbstraction took 1249.15ms. Allocated memory is still 169.9MB. Free memory was 95.8MB in the beginning and 80.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,573 INFO L158 Benchmark]: Witness Printer took 52.74ms. Allocated memory is still 169.9MB. Free memory was 80.3MB in the beginning and 77.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 21:08:33,575 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 140.5MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 784.33ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 104.9MB in the beginning and 118.8MB in the end (delta: -14.0MB). Peak memory consumption was 62.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.63ms. Allocated memory is still 169.9MB. Free memory was 118.8MB in the beginning and 115.6MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 169.9MB. Free memory was 115.6MB in the beginning and 113.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.91ms. Allocated memory is still 169.9MB. Free memory was 113.7MB in the beginning and 95.8MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1249.15ms. Allocated memory is still 169.9MB. Free memory was 95.8MB in the beginning and 80.3MB in the end (delta: 15.4MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * Witness Printer took 52.74ms. Allocated memory is still 169.9MB. Free memory was 80.3MB in the beginning and 77.2MB in the end (delta: 3.1MB). 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: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1606]: 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 3 procedures, 50 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 150 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 137 mSDsluCounter, 611 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 242 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24 IncrementalHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 369 mSDtfsCounter, 24 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred in iteration=0, InterpolantAutomatonStates: 24, 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, 8 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 21 PreInvPairs, 26 NumberOfFragments, 61 HoareAnnotationTreeSize, 21 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 182 ConstructedInterpolants, 0 QuantifiedInterpolants, 232 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 40/40 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 6 specifications checked. All of them hold - InvariantResult [Line: 1625]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-12-13 21:08:33,590 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_397c451b-3d53-4af7-a2a8-a498c6ae2bf8/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE