./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_08_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_08_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R --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 b618b80eb8625511085acc2013e7fb0e4260eb0ffa340df181bb34ff05740a29 --- 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-38b53e6 [2022-11-25 17:45:08,722 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:45:08,724 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:45:08,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:45:08,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:45:08,754 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:45:08,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:45:08,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:45:08,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:45:08,768 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:45:08,770 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:45:08,772 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:45:08,772 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:45:08,775 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:45:08,777 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:45:08,778 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:45:08,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:45:08,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:45:08,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:45:08,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:45:08,786 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:45:08,787 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:45:08,789 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:45:08,790 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:45:08,793 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:45:08,793 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:45:08,794 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:45:08,794 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:45:08,795 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:45:08,796 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:45:08,796 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:45:08,797 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:45:08,798 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:45:08,799 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:45:08,800 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:45:08,800 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:45:08,801 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:45:08,802 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:45:08,802 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:45:08,803 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:45:08,804 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:45:08,805 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 17:45:08,825 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:45:08,826 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:45:08,826 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:45:08,826 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:45:08,827 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:45:08,827 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:45:08,828 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:45:08,828 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:45:08,829 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:45:08,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:45:08,829 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:45:08,829 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:45:08,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:45:08,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:45:08,830 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:45:08,830 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:45:08,831 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:45:08,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:45:08,831 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:45:08,831 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:45:08,831 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:45:08,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:45:08,832 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:45:08,832 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:45:08,832 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:45:08,833 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:45:08,833 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:45:08,833 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:45:08,833 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:45:08,834 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:45:08,834 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:45:08,834 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:45:08,834 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:45:08,835 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_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b618b80eb8625511085acc2013e7fb0e4260eb0ffa340df181bb34ff05740a29 [2022-11-25 17:45:09,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:45:09,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:45:09,158 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:45:09,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:45:09,160 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:45:09,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_08_good.i [2022-11-25 17:45:12,413 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:45:12,816 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:45:12,816 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_predec_08_good.i [2022-11-25 17:45:12,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/data/127d0621e/74297df84d214ced896844b106bad279/FLAGe8caa2182 [2022-11-25 17:45:12,874 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/data/127d0621e/74297df84d214ced896844b106bad279 [2022-11-25 17:45:12,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:45:12,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:45:12,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:45:12,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:45:12,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:45:12,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:45:12" (1/1) ... [2022-11-25 17:45:12,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57a62eed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:12, skipping insertion in model container [2022-11-25 17:45:12,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:45:12" (1/1) ... [2022-11-25 17:45:12,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:45:12,948 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:45:13,344 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:45:13,890 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:45:13,899 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:45:13,902 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:45:13,905 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:45:13,906 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:45:13,948 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:45:13,957 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:45:13,968 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:45:13,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:45:13,982 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:45:14,013 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 17:45:14,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 17:45:14,139 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:45:14,140 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 17:45:14,142 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:45:14,146 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 17:45:14,152 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:45:14,169 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 17:45:14,174 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 17:45:14,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:45:14,400 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:45:14,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14 WrapperNode [2022-11-25 17:45:14,400 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:45:14,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:45:14,402 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:45:14,402 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:45:14,409 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,475 INFO L138 Inliner]: procedures = 506, calls = 93, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 151 [2022-11-25 17:45:14,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:45:14,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:45:14,477 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:45:14,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:45:14,487 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,488 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,499 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,502 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,504 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:45:14,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:45:14,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:45:14,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:45:14,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (1/1) ... [2022-11-25 17:45:14,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:45:14,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:14,552 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:45:14,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:45:14,600 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 17:45:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 17:45:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 17:45:14,601 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 17:45:14,601 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 17:45:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:45:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 17:45:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:45:14,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:45:14,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:45:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-11-25 17:45:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-11-25 17:45:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:45:14,603 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsFalse [2022-11-25 17:45:14,603 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsFalse [2022-11-25 17:45:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 17:45:14,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:45:14,770 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:45:14,772 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:45:15,081 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:45:15,089 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:45:15,089 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 17:45:15,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:45:15 BoogieIcfgContainer [2022-11-25 17:45:15,092 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:45:15,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:45:15,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:45:15,109 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:45:15,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:45:12" (1/3) ... [2022-11-25 17:45:15,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed4c51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:45:15, skipping insertion in model container [2022-11-25 17:45:15,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:45:14" (2/3) ... [2022-11-25 17:45:15,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ed4c51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:45:15, skipping insertion in model container [2022-11-25 17:45:15,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:45:15" (3/3) ... [2022-11-25 17:45:15,112 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_predec_08_good.i [2022-11-25 17:45:15,133 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:45:15,134 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-25 17:45:15,187 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:45:15,194 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;@3bdf435e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:45:15,194 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-25 17:45:15,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 17:45:15,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:45:15,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:15,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:15,211 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:15,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:15,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1129302584, now seen corresponding path program 1 times [2022-11-25 17:45:15,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:15,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146220924] [2022-11-25 17:45:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:15,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:15,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:15,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-25 17:45:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:15,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:15,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:15,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146220924] [2022-11-25 17:45:15,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146220924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:15,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:15,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:45:15,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483697237] [2022-11-25 17:45:15,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:15,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:45:15,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:15,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:45:15,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:45:15,840 INFO L87 Difference]: Start difference. First operand has 83 states, 50 states have (on average 1.42) internal successors, (71), 67 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 17 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:45:15,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:15,964 INFO L93 Difference]: Finished difference Result 156 states and 207 transitions. [2022-11-25 17:45:15,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:45:15,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-11-25 17:45:15,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:15,982 INFO L225 Difference]: With dead ends: 156 [2022-11-25 17:45:15,982 INFO L226 Difference]: Without dead ends: 75 [2022-11-25 17:45:15,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:45:15,994 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:15,996 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 314 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:16,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2022-11-25 17:45:16,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2022-11-25 17:45:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 60 states have internal predecessors, (63), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 15 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 17:45:16,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 99 transitions. [2022-11-25 17:45:16,042 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 99 transitions. Word has length 22 [2022-11-25 17:45:16,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:16,044 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 99 transitions. [2022-11-25 17:45:16,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:45:16,045 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 99 transitions. [2022-11-25 17:45:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-25 17:45:16,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:16,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:16,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:45:16,048 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:16,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:16,049 INFO L85 PathProgramCache]: Analyzing trace with hash 849048579, now seen corresponding path program 1 times [2022-11-25 17:45:16,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:16,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621942184] [2022-11-25 17:45:16,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:16,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:16,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:16,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:16,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:16,156 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621942184] [2022-11-25 17:45:16,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621942184] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:16,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:16,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:45:16,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535091081] [2022-11-25 17:45:16,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:16,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:16,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:16,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:16,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:16,161 INFO L87 Difference]: Start difference. First operand 75 states and 99 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:45:16,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:16,199 INFO L93 Difference]: Finished difference Result 177 states and 237 transitions. [2022-11-25 17:45:16,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:16,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2022-11-25 17:45:16,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:16,202 INFO L225 Difference]: With dead ends: 177 [2022-11-25 17:45:16,202 INFO L226 Difference]: Without dead ends: 121 [2022-11-25 17:45:16,203 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 [2022-11-25 17:45:16,204 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 45 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:16,205 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 260 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:16,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2022-11-25 17:45:16,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 79. [2022-11-25 17:45:16,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 49 states have (on average 1.3673469387755102) internal successors, (67), 62 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:16,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 105 transitions. [2022-11-25 17:45:16,222 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 105 transitions. Word has length 24 [2022-11-25 17:45:16,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:16,222 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 105 transitions. [2022-11-25 17:45:16,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-25 17:45:16,223 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 105 transitions. [2022-11-25 17:45:16,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 17:45:16,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:16,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:16,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:45:16,225 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:16,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:16,226 INFO L85 PathProgramCache]: Analyzing trace with hash 550702250, now seen corresponding path program 1 times [2022-11-25 17:45:16,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:16,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596726088] [2022-11-25 17:45:16,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:16,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:16,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:16,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:45:16,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:16,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596726088] [2022-11-25 17:45:16,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596726088] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:16,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:16,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:45:16,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170857291] [2022-11-25 17:45:16,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:16,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:16,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:16,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:16,397 INFO L87 Difference]: Start difference. First operand 79 states and 105 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:45:16,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:16,445 INFO L93 Difference]: Finished difference Result 79 states and 105 transitions. [2022-11-25 17:45:16,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:16,445 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-11-25 17:45:16,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:16,447 INFO L225 Difference]: With dead ends: 79 [2022-11-25 17:45:16,447 INFO L226 Difference]: Without dead ends: 78 [2022-11-25 17:45:16,447 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 [2022-11-25 17:45:16,449 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 41 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:16,449 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:16,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-11-25 17:45:16,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-11-25 17:45:16,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.346938775510204) internal successors, (66), 61 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 16 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:16,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 104 transitions. [2022-11-25 17:45:16,462 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 104 transitions. Word has length 25 [2022-11-25 17:45:16,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:16,462 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 104 transitions. [2022-11-25 17:45:16,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-25 17:45:16,463 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 104 transitions. [2022-11-25 17:45:16,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-11-25 17:45:16,464 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:16,465 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:16,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:45:16,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:16,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:16,466 INFO L85 PathProgramCache]: Analyzing trace with hash -893217450, now seen corresponding path program 1 times [2022-11-25 17:45:16,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:16,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574528696] [2022-11-25 17:45:16,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:16,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-25 17:45:16,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-25 17:45:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-25 17:45:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:45:16,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:16,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574528696] [2022-11-25 17:45:16,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574528696] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:16,684 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:16,684 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:45:16,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290537632] [2022-11-25 17:45:16,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:16,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:45:16,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:16,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:45:16,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:45:16,689 INFO L87 Difference]: Start difference. First operand 78 states and 104 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:16,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:16,727 INFO L93 Difference]: Finished difference Result 132 states and 172 transitions. [2022-11-25 17:45:16,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:45:16,728 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2022-11-25 17:45:16,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:16,730 INFO L225 Difference]: With dead ends: 132 [2022-11-25 17:45:16,730 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 17:45:16,731 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:45:16,732 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:16,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 270 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:16,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 17:45:16,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 17:45:16,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 60 states have internal predecessors, (64), 18 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (18), 16 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-25 17:45:16,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 100 transitions. [2022-11-25 17:45:16,745 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 100 transitions. Word has length 42 [2022-11-25 17:45:16,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:16,745 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 100 transitions. [2022-11-25 17:45:16,746 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:16,746 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 100 transitions. [2022-11-25 17:45:16,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 17:45:16,747 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:16,748 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:16,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:45:16,748 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:16,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:16,749 INFO L85 PathProgramCache]: Analyzing trace with hash -979768833, now seen corresponding path program 1 times [2022-11-25 17:45:16,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:16,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070436245] [2022-11-25 17:45:16,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:16,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:16,867 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:45:16,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:16,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070436245] [2022-11-25 17:45:16,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070436245] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:16,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [730197573] [2022-11-25 17:45:16,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:16,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:16,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:16,872 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:16,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:45:17,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:17,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:17,128 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:45:17,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:17,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [730197573] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:17,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:17,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:17,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433537299] [2022-11-25 17:45:17,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:17,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:17,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:17,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:17,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:17,135 INFO L87 Difference]: Start difference. First operand 77 states and 100 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:17,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:17,179 INFO L93 Difference]: Finished difference Result 147 states and 188 transitions. [2022-11-25 17:45:17,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:17,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2022-11-25 17:45:17,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:17,185 INFO L225 Difference]: With dead ends: 147 [2022-11-25 17:45:17,185 INFO L226 Difference]: Without dead ends: 108 [2022-11-25 17:45:17,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:17,190 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 25 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:17,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 210 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:17,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2022-11-25 17:45:17,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 83. [2022-11-25 17:45:17,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 54 states have (on average 1.2962962962962963) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:17,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-11-25 17:45:17,215 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 43 [2022-11-25 17:45:17,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:17,215 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-11-25 17:45:17,215 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:17,216 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-11-25 17:45:17,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-25 17:45:17,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:17,217 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:17,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:17,441 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:17,441 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:17,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:17,442 INFO L85 PathProgramCache]: Analyzing trace with hash -308062640, now seen corresponding path program 1 times [2022-11-25 17:45:17,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949341074] [2022-11-25 17:45:17,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:17,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:17,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:17,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:17,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,554 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-25 17:45:17,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:17,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949341074] [2022-11-25 17:45:17,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949341074] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:17,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251821865] [2022-11-25 17:45:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:17,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:17,557 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:17,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:45:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:17,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:17,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:17,730 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:45:17,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:17,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251821865] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:17,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:17,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:17,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450889885] [2022-11-25 17:45:17,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:17,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:17,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:17,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:17,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:17,738 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:17,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:17,772 INFO L93 Difference]: Finished difference Result 110 states and 144 transitions. [2022-11-25 17:45:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:17,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2022-11-25 17:45:17,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:17,780 INFO L225 Difference]: With dead ends: 110 [2022-11-25 17:45:17,780 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 17:45:17,780 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:17,786 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 24 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:17,786 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 202 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 17:45:17,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 84. [2022-11-25 17:45:17,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.290909090909091) internal successors, (71), 65 states have internal predecessors, (71), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-25 17:45:17,804 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 44 [2022-11-25 17:45:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:17,805 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-25 17:45:17,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-25 17:45:17,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 17:45:17,811 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:17,811 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:17,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:18,011 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 17:45:18,012 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:18,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:18,012 INFO L85 PathProgramCache]: Analyzing trace with hash -396970406, now seen corresponding path program 1 times [2022-11-25 17:45:18,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:18,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271607135] [2022-11-25 17:45:18,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:18,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:18,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:18,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:18,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 17:45:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,115 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:45:18,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:18,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1271607135] [2022-11-25 17:45:18,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1271607135] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:18,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:18,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:45:18,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136703340] [2022-11-25 17:45:18,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:18,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:18,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:18,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:18,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:18,118 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:45:18,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:18,143 INFO L93 Difference]: Finished difference Result 108 states and 141 transitions. [2022-11-25 17:45:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:18,143 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2022-11-25 17:45:18,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:18,147 INFO L225 Difference]: With dead ends: 108 [2022-11-25 17:45:18,147 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 17:45:18,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:18,149 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 30 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:18,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 208 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:18,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 17:45:18,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 83. [2022-11-25 17:45:18,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.2727272727272727) internal successors, (70), 64 states have internal predecessors, (70), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:18,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 108 transitions. [2022-11-25 17:45:18,176 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 108 transitions. Word has length 45 [2022-11-25 17:45:18,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:18,176 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 108 transitions. [2022-11-25 17:45:18,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2022-11-25 17:45:18,176 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 108 transitions. [2022-11-25 17:45:18,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-11-25 17:45:18,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:18,177 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:18,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:45:18,178 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash 578819413, now seen corresponding path program 1 times [2022-11-25 17:45:18,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:18,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905373473] [2022-11-25 17:45:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:18,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:18,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-11-25 17:45:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,324 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-25 17:45:18,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:18,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905373473] [2022-11-25 17:45:18,325 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905373473] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:18,325 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:45:18,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:45:18,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839590498] [2022-11-25 17:45:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:18,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:18,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:18,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:18,327 INFO L87 Difference]: Start difference. First operand 83 states and 108 transitions. Second operand has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:18,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:18,341 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-11-25 17:45:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:18,342 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2022-11-25 17:45:18,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:18,343 INFO L225 Difference]: With dead ends: 83 [2022-11-25 17:45:18,344 INFO L226 Difference]: Without dead ends: 82 [2022-11-25 17:45:18,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:45:18,345 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 26 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:18,345 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 135 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:18,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-25 17:45:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 80. [2022-11-25 17:45:18,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 61 states have internal predecessors, (67), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:18,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 105 transitions. [2022-11-25 17:45:18,354 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 105 transitions. Word has length 46 [2022-11-25 17:45:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:18,355 INFO L495 AbstractCegarLoop]: Abstraction has 80 states and 105 transitions. [2022-11-25 17:45:18,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.5) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-25 17:45:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 105 transitions. [2022-11-25 17:45:18,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-11-25 17:45:18,356 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:18,356 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:18,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:45:18,357 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:18,357 INFO L85 PathProgramCache]: Analyzing trace with hash -1554069230, now seen corresponding path program 1 times [2022-11-25 17:45:18,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:18,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212454720] [2022-11-25 17:45:18,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:18,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:18,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:18,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,470 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 17:45:18,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:18,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212454720] [2022-11-25 17:45:18,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212454720] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:18,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544801607] [2022-11-25 17:45:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,471 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:18,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:18,473 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:18,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:45:18,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,608 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:18,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:18,637 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 17:45:18,637 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:18,637 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544801607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:18,637 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:18,638 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:18,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178517334] [2022-11-25 17:45:18,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:18,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:18,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:18,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:18,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:18,639 INFO L87 Difference]: Start difference. First operand 80 states and 105 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:45:18,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:18,654 INFO L93 Difference]: Finished difference Result 91 states and 118 transitions. [2022-11-25 17:45:18,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:18,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 55 [2022-11-25 17:45:18,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:18,656 INFO L225 Difference]: With dead ends: 91 [2022-11-25 17:45:18,656 INFO L226 Difference]: Without dead ends: 90 [2022-11-25 17:45:18,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:18,657 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:18,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 168 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:18,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-11-25 17:45:18,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 79. [2022-11-25 17:45:18,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 60 states have internal predecessors, (66), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:18,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 104 transitions. [2022-11-25 17:45:18,666 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 104 transitions. Word has length 55 [2022-11-25 17:45:18,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:18,667 INFO L495 AbstractCegarLoop]: Abstraction has 79 states and 104 transitions. [2022-11-25 17:45:18,667 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:45:18,667 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 104 transitions. [2022-11-25 17:45:18,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-11-25 17:45:18,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:18,668 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:18,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:18,880 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-25 17:45:18,880 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:18,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:18,881 INFO L85 PathProgramCache]: Analyzing trace with hash -931505736, now seen corresponding path program 1 times [2022-11-25 17:45:18,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:18,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581335244] [2022-11-25 17:45:18,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:18,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:18,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-25 17:45:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:18,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581335244] [2022-11-25 17:45:18,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581335244] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886598801] [2022-11-25 17:45:18,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:18,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:18,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:18,993 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:19,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 17:45:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,115 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:19,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:19,151 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-11-25 17:45:19,151 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:19,151 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886598801] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:19,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:19,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:19,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466198175] [2022-11-25 17:45:19,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:19,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:19,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:19,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:19,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:19,153 INFO L87 Difference]: Start difference. First operand 79 states and 104 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:45:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:19,176 INFO L93 Difference]: Finished difference Result 97 states and 127 transitions. [2022-11-25 17:45:19,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:19,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 56 [2022-11-25 17:45:19,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:19,178 INFO L225 Difference]: With dead ends: 97 [2022-11-25 17:45:19,178 INFO L226 Difference]: Without dead ends: 96 [2022-11-25 17:45:19,179 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:19,180 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:19,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 179 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-11-25 17:45:19,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2022-11-25 17:45:19,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.2456140350877194) internal successors, (71), 63 states have internal predecessors, (71), 20 states have call successors, (20), 4 states have call predecessors, (20), 4 states have return successors, (20), 18 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-25 17:45:19,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 111 transitions. [2022-11-25 17:45:19,192 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 111 transitions. Word has length 56 [2022-11-25 17:45:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:19,193 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 111 transitions. [2022-11-25 17:45:19,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-25 17:45:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 111 transitions. [2022-11-25 17:45:19,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-11-25 17:45:19,196 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:19,196 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:19,203 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:19,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:19,402 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:19,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:19,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1831872358, now seen corresponding path program 1 times [2022-11-25 17:45:19,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:19,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022935504] [2022-11-25 17:45:19,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:19,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-11-25 17:45:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-11-25 17:45:19,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:19,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022935504] [2022-11-25 17:45:19,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022935504] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:19,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958329373] [2022-11-25 17:45:19,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:19,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:19,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:19,517 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:19,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 17:45:19,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:19,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:19,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:19,700 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-25 17:45:19,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:19,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958329373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:19,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:19,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:19,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698447302] [2022-11-25 17:45:19,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:19,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:19,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:19,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:19,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:19,703 INFO L87 Difference]: Start difference. First operand 84 states and 111 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:45:19,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:19,715 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions. [2022-11-25 17:45:19,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:19,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 61 [2022-11-25 17:45:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:19,716 INFO L225 Difference]: With dead ends: 84 [2022-11-25 17:45:19,717 INFO L226 Difference]: Without dead ends: 83 [2022-11-25 17:45:19,717 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:19,718 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 10 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:19,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 154 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:19,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-25 17:45:19,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 78. [2022-11-25 17:45:19,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 59 states have internal predecessors, (65), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 103 transitions. [2022-11-25 17:45:19,727 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 103 transitions. Word has length 61 [2022-11-25 17:45:19,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:19,727 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 103 transitions. [2022-11-25 17:45:19,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-25 17:45:19,727 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 103 transitions. [2022-11-25 17:45:19,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-25 17:45:19,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:19,728 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:19,736 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:19,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:19,935 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:19,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:19,936 INFO L85 PathProgramCache]: Analyzing trace with hash 344469670, now seen corresponding path program 1 times [2022-11-25 17:45:19,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:19,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028550124] [2022-11-25 17:45:19,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:19,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:19,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:20,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:20,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:20,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:20,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:20,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:45:20,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:45:20,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,136 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 17:45:20,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:20,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028550124] [2022-11-25 17:45:20,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028550124] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:20,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432431] [2022-11-25 17:45:20,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:20,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:20,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:20,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:20,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 17:45:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:20,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 17:45:20,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:20,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432431] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:20,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:20,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:20,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644499] [2022-11-25 17:45:20,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:20,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:20,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:20,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:20,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:20,308 INFO L87 Difference]: Start difference. First operand 78 states and 103 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:20,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:20,320 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-25 17:45:20,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:20,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2022-11-25 17:45:20,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:20,325 INFO L225 Difference]: With dead ends: 78 [2022-11-25 17:45:20,325 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 17:45:20,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:20,326 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 4 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:20,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 166 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:20,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 17:45:20,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 17:45:20,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.2075471698113207) internal successors, (64), 58 states have internal predecessors, (64), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:20,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 102 transitions. [2022-11-25 17:45:20,344 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 102 transitions. Word has length 68 [2022-11-25 17:45:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:20,344 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 102 transitions. [2022-11-25 17:45:20,344 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:20,345 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 102 transitions. [2022-11-25 17:45:20,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 17:45:20,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:20,346 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:20,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:20,553 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:45:20,553 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:20,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:20,553 INFO L85 PathProgramCache]: Analyzing trace with hash 2088625338, now seen corresponding path program 1 times [2022-11-25 17:45:20,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:20,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468063844] [2022-11-25 17:45:20,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:20,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:20,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:20,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:20,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:20,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:20,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:20,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:45:20,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:45:20,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 17:45:20,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:20,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468063844] [2022-11-25 17:45:20,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468063844] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:20,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684915003] [2022-11-25 17:45:20,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:20,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:20,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:20,673 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:20,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 17:45:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:20,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:20,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:20,819 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 17:45:20,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:20,820 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684915003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:20,820 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:20,820 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:20,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156657661] [2022-11-25 17:45:20,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:20,821 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:20,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:20,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:20,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:20,822 INFO L87 Difference]: Start difference. First operand 77 states and 102 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:20,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:20,834 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2022-11-25 17:45:20,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:20,835 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-25 17:45:20,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:20,836 INFO L225 Difference]: With dead ends: 83 [2022-11-25 17:45:20,836 INFO L226 Difference]: Without dead ends: 77 [2022-11-25 17:45:20,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:20,837 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 0 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:20,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 177 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:20,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-11-25 17:45:20,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2022-11-25 17:45:20,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 53 states have (on average 1.1886792452830188) internal successors, (63), 58 states have internal predecessors, (63), 19 states have call successors, (19), 4 states have call predecessors, (19), 4 states have return successors, (19), 17 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-25 17:45:20,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 101 transitions. [2022-11-25 17:45:20,845 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 101 transitions. Word has length 69 [2022-11-25 17:45:20,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:20,846 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 101 transitions. [2022-11-25 17:45:20,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:20,846 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 101 transitions. [2022-11-25 17:45:20,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-11-25 17:45:20,847 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:45:20,848 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:20,860 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:21,053 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:45:21,053 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-25 17:45:21,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:45:21,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1526283588, now seen corresponding path program 1 times [2022-11-25 17:45:21,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:45:21,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168064116] [2022-11-25 17:45:21,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:21,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:45:21,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 17:45:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-25 17:45:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-11-25 17:45:21,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-25 17:45:21,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-25 17:45:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-11-25 17:45:21,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-11-25 17:45:21,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-11-25 17:45:21,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-11-25 17:45:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-11-25 17:45:21,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,168 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-11-25 17:45:21,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:45:21,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168064116] [2022-11-25 17:45:21,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168064116] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:45:21,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688677517] [2022-11-25 17:45:21,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:45:21,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:45:21,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:45:21,171 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:45:21,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 17:45:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:45:21,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:45:21,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:45:21,325 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-11-25 17:45:21,325 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:45:21,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688677517] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:45:21,326 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:45:21,326 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:45:21,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367524788] [2022-11-25 17:45:21,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:45:21,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:45:21,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:45:21,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:45:21,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:21,328 INFO L87 Difference]: Start difference. First operand 77 states and 101 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:21,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:45:21,336 INFO L93 Difference]: Finished difference Result 77 states and 101 transitions. [2022-11-25 17:45:21,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:45:21,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 69 [2022-11-25 17:45:21,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:45:21,337 INFO L225 Difference]: With dead ends: 77 [2022-11-25 17:45:21,338 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:45:21,338 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:45:21,339 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 0 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:45:21,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:45:21,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:45:21,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:45:21,340 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) [2022-11-25 17:45:21,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:45:21,341 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 69 [2022-11-25 17:45:21,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:45:21,341 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:45:21,341 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-25 17:45:21,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:45:21,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:45:21,344 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-25 17:45:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-25 17:45:21,345 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-25 17:45:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-25 17:45:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-25 17:45:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-25 17:45:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-25 17:45:21,346 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-25 17:45:21,358 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 17:45:21,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-25 17:45:21,555 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:45:21,842 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 17:45:21,842 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 17:45:21,842 INFO L899 garLoopResultBuilder]: For program point L1414(lines 1414 1417) no Hoare annotation was computed. [2022-11-25 17:45:21,843 INFO L899 garLoopResultBuilder]: For program point L1414-2(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 17:45:21,843 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseEXIT(lines 1552 1555) no Hoare annotation was computed. [2022-11-25 17:45:21,843 INFO L902 garLoopResultBuilder]: At program point staticReturnsFalseENTRY(lines 1552 1555) the Hoare annotation is: true [2022-11-25 17:45:21,844 INFO L899 garLoopResultBuilder]: For program point staticReturnsFalseFINAL(lines 1552 1555) no Hoare annotation was computed. [2022-11-25 17:45:21,844 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 17:45:21,845 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 17:45:21,845 INFO L899 garLoopResultBuilder]: For program point printIntLineFINAL(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 17:45:21,845 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1614) no Hoare annotation was computed. [2022-11-25 17:45:21,845 INFO L899 garLoopResultBuilder]: For program point L1662(lines 1662 1668) no Hoare annotation was computed. [2022-11-25 17:45:21,846 INFO L895 garLoopResultBuilder]: At program point L1596(line 1596) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-11-25 17:45:21,846 INFO L899 garLoopResultBuilder]: For program point L1596-1(line 1596) no Hoare annotation was computed. [2022-11-25 17:45:21,846 INFO L899 garLoopResultBuilder]: For program point L1596-2(lines 1596 1609) no Hoare annotation was computed. [2022-11-25 17:45:21,846 INFO L895 garLoopResultBuilder]: At program point L1596-4(lines 1596 1609) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 17:45:21,847 INFO L895 garLoopResultBuilder]: At program point L1588(line 1588) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-25 17:45:21,847 INFO L899 garLoopResultBuilder]: For program point L1588-1(lines 1574 1590) no Hoare annotation was computed. [2022-11-25 17:45:21,847 INFO L899 garLoopResultBuilder]: For program point L1580(lines 1580 1589) no Hoare annotation was computed. [2022-11-25 17:45:21,847 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-11-25 17:45:21,848 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-11-25 17:45:21,849 INFO L895 garLoopResultBuilder]: At program point L1630(line 1630) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 17:45:21,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:45:21,849 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:45:21,850 INFO L899 garLoopResultBuilder]: For program point L1564(lines 1564 1571) no Hoare annotation was computed. [2022-11-25 17:45:21,850 INFO L899 garLoopResultBuilder]: For program point L1614(line 1614) no Hoare annotation was computed. [2022-11-25 17:45:21,850 INFO L899 garLoopResultBuilder]: For program point L1614-1(line 1614) no Hoare annotation was computed. [2022-11-25 17:45:21,850 INFO L902 garLoopResultBuilder]: At program point L1672(line 1672) the Hoare annotation is: true [2022-11-25 17:45:21,851 INFO L899 garLoopResultBuilder]: For program point L1672-1(line 1672) no Hoare annotation was computed. [2022-11-25 17:45:21,851 INFO L899 garLoopResultBuilder]: For program point L1639(line 1639) no Hoare annotation was computed. [2022-11-25 17:45:21,851 INFO L895 garLoopResultBuilder]: At program point L1606(line 1606) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0) (<= 0 |ULTIMATE.start_goodB2G2_~data~1#1|)) [2022-11-25 17:45:21,851 INFO L899 garLoopResultBuilder]: For program point L1639-1(line 1639) no Hoare annotation was computed. [2022-11-25 17:45:21,852 INFO L899 garLoopResultBuilder]: For program point L1606-1(lines 1600 1607) no Hoare annotation was computed. [2022-11-25 17:45:21,852 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1582) no Hoare annotation was computed. [2022-11-25 17:45:21,853 INFO L899 garLoopResultBuilder]: For program point L1656(line 1656) no Hoare annotation was computed. [2022-11-25 17:45:21,853 INFO L899 garLoopResultBuilder]: For program point L1656-1(line 1656) no Hoare annotation was computed. [2022-11-25 17:45:21,853 INFO L899 garLoopResultBuilder]: For program point L1582(line 1582) no Hoare annotation was computed. [2022-11-25 17:45:21,853 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-11-25 17:45:21,853 INFO L899 garLoopResultBuilder]: For program point L1574(line 1574) no Hoare annotation was computed. [2022-11-25 17:45:21,854 INFO L899 garLoopResultBuilder]: For program point L1574-1(lines 1574 1590) no Hoare annotation was computed. [2022-11-25 17:45:21,854 INFO L899 garLoopResultBuilder]: For program point L1624(lines 1624 1644) no Hoare annotation was computed. [2022-11-25 17:45:21,854 INFO L895 garLoopResultBuilder]: At program point L1649(line 1649) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 17:45:21,855 INFO L895 garLoopResultBuilder]: At program point L1616(line 1616) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 17:45:21,855 INFO L899 garLoopResultBuilder]: For program point L1649-1(line 1649) no Hoare annotation was computed. [2022-11-25 17:45:21,855 INFO L899 garLoopResultBuilder]: For program point L1649-2(lines 1649 1652) no Hoare annotation was computed. [2022-11-25 17:45:21,855 INFO L895 garLoopResultBuilder]: At program point L1649-4(lines 1649 1652) the Hoare annotation is: (and (<= 0 (+ |ULTIMATE.start_goodG2B2_~data~3#1| 2)) (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B2_~data~3#1| 0) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 17:45:21,855 INFO L902 garLoopResultBuilder]: At program point L1674(line 1674) the Hoare annotation is: true [2022-11-25 17:45:21,856 INFO L895 garLoopResultBuilder]: At program point L1641(line 1641) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647)) [2022-11-25 17:45:21,856 INFO L899 garLoopResultBuilder]: For program point L1674-1(line 1674) no Hoare annotation was computed. [2022-11-25 17:45:21,856 INFO L899 garLoopResultBuilder]: For program point L1600(lines 1600 1607) no Hoare annotation was computed. [2022-11-25 17:45:21,856 INFO L902 garLoopResultBuilder]: At program point L1658(line 1658) the Hoare annotation is: true [2022-11-25 17:45:21,856 INFO L899 garLoopResultBuilder]: For program point L1592(lines 1592 1623) no Hoare annotation was computed. [2022-11-25 17:45:21,857 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-25 17:45:21,857 INFO L902 garLoopResultBuilder]: At program point L1675(lines 1669 1676) the Hoare annotation is: true [2022-11-25 17:45:21,858 INFO L895 garLoopResultBuilder]: At program point L1576(line 1576) the Hoare annotation is: false [2022-11-25 17:45:21,858 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:45:21,858 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1639) no Hoare annotation was computed. [2022-11-25 17:45:21,858 INFO L895 garLoopResultBuilder]: At program point L1560(line 1560) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-11-25 17:45:21,858 INFO L899 garLoopResultBuilder]: For program point L1560-1(line 1560) no Hoare annotation was computed. [2022-11-25 17:45:21,859 INFO L899 garLoopResultBuilder]: For program point L1560-2(lines 1560 1573) no Hoare annotation was computed. [2022-11-25 17:45:21,859 INFO L895 garLoopResultBuilder]: At program point L1560-4(lines 1560 1573) the Hoare annotation is: (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) [2022-11-25 17:45:21,859 INFO L899 garLoopResultBuilder]: For program point L1610(line 1610) no Hoare annotation was computed. [2022-11-25 17:45:21,859 INFO L899 garLoopResultBuilder]: For program point L1610-1(lines 1610 1622) no Hoare annotation was computed. [2022-11-25 17:45:21,859 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:45:21,860 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1639) no Hoare annotation was computed. [2022-11-25 17:45:21,860 INFO L899 garLoopResultBuilder]: For program point L1636(line 1636) no Hoare annotation was computed. [2022-11-25 17:45:21,860 INFO L899 garLoopResultBuilder]: For program point L1636-1(lines 1636 1643) no Hoare annotation was computed. [2022-11-25 17:45:21,860 INFO L895 garLoopResultBuilder]: At program point L1570(line 1570) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (not (<= (+ |ULTIMATE.start_goodB2G1_~data~0#1| 2147483648) 0))) [2022-11-25 17:45:21,860 INFO L899 garLoopResultBuilder]: For program point L1570-1(lines 1564 1571) no Hoare annotation was computed. [2022-11-25 17:45:21,861 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1614) no Hoare annotation was computed. [2022-11-25 17:45:21,861 INFO L895 garLoopResultBuilder]: At program point L1628(line 1628) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 17:45:21,861 INFO L899 garLoopResultBuilder]: For program point L1628-1(line 1628) no Hoare annotation was computed. [2022-11-25 17:45:21,862 INFO L899 garLoopResultBuilder]: For program point L1628-2(lines 1628 1635) no Hoare annotation was computed. [2022-11-25 17:45:21,863 INFO L895 garLoopResultBuilder]: At program point L1628-3(lines 1628 1635) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodG2B1_~data~2#1| 0) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 2147483647) (<= 0 (+ 2 |ULTIMATE.start_goodG2B1_~data~2#1|))) [2022-11-25 17:45:21,863 INFO L899 garLoopResultBuilder]: For program point L1653(line 1653) no Hoare annotation was computed. [2022-11-25 17:45:21,863 INFO L895 garLoopResultBuilder]: At program point L1620(line 1620) the Hoare annotation is: (and (<= |ULTIMATE.start_goodB2G1_~data~0#1| 2147483647) (<= |ULTIMATE.start_goodB2G2_~data~1#1| 0)) [2022-11-25 17:45:21,864 INFO L899 garLoopResultBuilder]: For program point L1653-1(lines 1653 1660) no Hoare annotation was computed. [2022-11-25 17:45:21,864 INFO L899 garLoopResultBuilder]: For program point L1645(lines 1645 1661) no Hoare annotation was computed. [2022-11-25 17:45:21,864 INFO L899 garLoopResultBuilder]: For program point L1612(lines 1612 1621) no Hoare annotation was computed. [2022-11-25 17:45:21,864 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1656) no Hoare annotation was computed. [2022-11-25 17:45:21,864 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueFINAL(lines 1548 1551) no Hoare annotation was computed. [2022-11-25 17:45:21,865 INFO L899 garLoopResultBuilder]: For program point staticReturnsTrueEXIT(lines 1548 1551) no Hoare annotation was computed. [2022-11-25 17:45:21,865 INFO L902 garLoopResultBuilder]: At program point staticReturnsTrueENTRY(lines 1548 1551) the Hoare annotation is: true [2022-11-25 17:45:21,869 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:45:21,872 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:45:21,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:45:21 BoogieIcfgContainer [2022-11-25 17:45:21,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:45:21,886 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:45:21,886 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:45:21,886 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:45:21,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:45:15" (3/4) ... [2022-11-25 17:45:21,901 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:45:21,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 17:45:21,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsFalse [2022-11-25 17:45:21,910 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 17:45:21,911 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure staticReturnsTrue [2022-11-25 17:45:21,921 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-25 17:45:21,922 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 17:45:21,922 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:45:21,923 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:45:21,923 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:45:22,001 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:45:22,001 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:45:22,002 INFO L158 Benchmark]: Toolchain (without parser) took 9123.13ms. Allocated memory was 182.5MB in the beginning and 293.6MB in the end (delta: 111.1MB). Free memory was 128.5MB in the beginning and 241.8MB in the end (delta: -113.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:45:22,002 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 182.5MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:45:22,003 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1520.47ms. Allocated memory was 182.5MB in the beginning and 243.3MB in the end (delta: 60.8MB). Free memory was 128.5MB in the beginning and 198.6MB in the end (delta: -70.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,004 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.39ms. Allocated memory is still 243.3MB. Free memory was 198.6MB in the beginning and 195.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,004 INFO L158 Benchmark]: Boogie Preprocessor took 32.98ms. Allocated memory is still 243.3MB. Free memory was 195.4MB in the beginning and 193.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,005 INFO L158 Benchmark]: RCFGBuilder took 581.74ms. Allocated memory is still 243.3MB. Free memory was 193.3MB in the beginning and 175.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,005 INFO L158 Benchmark]: TraceAbstraction took 6780.46ms. Allocated memory was 243.3MB in the beginning and 293.6MB in the end (delta: 50.3MB). Free memory was 174.5MB in the beginning and 247.0MB in the end (delta: -72.5MB). Peak memory consumption was 109.9MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,006 INFO L158 Benchmark]: Witness Printer took 115.33ms. Allocated memory is still 293.6MB. Free memory was 247.0MB in the beginning and 241.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:45:22,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 182.5MB. Free memory is still 153.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1520.47ms. Allocated memory was 182.5MB in the beginning and 243.3MB in the end (delta: 60.8MB). Free memory was 128.5MB in the beginning and 198.6MB in the end (delta: -70.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.39ms. Allocated memory is still 243.3MB. Free memory was 198.6MB in the beginning and 195.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.98ms. Allocated memory is still 243.3MB. Free memory was 195.4MB in the beginning and 193.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 581.74ms. Allocated memory is still 243.3MB. Free memory was 193.3MB in the beginning and 175.5MB in the end (delta: 17.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6780.46ms. Allocated memory was 243.3MB in the beginning and 293.6MB in the end (delta: 50.3MB). Free memory was 174.5MB in the beginning and 247.0MB in the end (delta: -72.5MB). Peak memory consumption was 109.9MB. Max. memory is 16.1GB. * Witness Printer took 115.33ms. Allocated memory is still 293.6MB. Free memory was 247.0MB in the beginning and 241.8MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1582]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1614]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1614]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1639]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1639]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1656]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 83 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 6.7s, OverallIterations: 14, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 2732 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1287 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 80 IncrementalHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 1445 mSDtfsCounter, 80 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 683 GetRequests, 651 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=84occurred in iteration=6, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 146 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 25 LocationsWithAnnotation, 91 PreInvPairs, 111 NumberOfFragments, 170 HoareAnnotationTreeSize, 91 FomulaSimplifications, 1060 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 25 FomulaSimplificationsInter, 184 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1134 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 1450 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1873 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 22 InterpolantComputations, 14 PerfectInterpolantSequences, 529/569 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 1669]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-25 17:45:22,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_54ba837b-3930-44d3-b682-25c0edec705e/bin/uautomizer-ZsLfNo2U6R/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