./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_16_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_16_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash fd678b7a374d130dc007a90fdb7dd033cd0ca0556e9a92d8edccfd6791a08ea5 --- 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 23:40:02,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:40:02,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:40:02,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:40:02,574 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:40:02,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:40:02,577 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:40:02,578 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:40:02,580 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:40:02,581 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:40:02,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:40:02,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:40:02,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:40:02,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:40:02,585 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:40:02,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:40:02,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:40:02,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:40:02,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:40:02,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:40:02,594 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:40:02,596 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:40:02,597 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:40:02,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:40:02,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:40:02,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:40:02,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:40:02,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:40:02,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:40:02,609 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:40:02,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:40:02,619 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:40:02,619 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:40:02,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:40:02,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:40:02,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:40:02,622 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:40:02,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:40:02,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:40:02,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:40:02,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:40:02,630 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:40:02,668 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:40:02,669 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:40:02,669 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:40:02,670 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:40:02,670 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:40:02,670 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:40:02,671 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:40:02,671 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:40:02,672 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:40:02,672 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:40:02,672 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:40:02,672 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:40:02,672 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:40:02,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:40:02,673 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:40:02,673 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:40:02,673 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:40:02,674 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:40:02,675 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:40:02,675 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:40:02,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:40:02,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:40:02,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:40:02,675 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:40:02,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd678b7a374d130dc007a90fdb7dd033cd0ca0556e9a92d8edccfd6791a08ea5 [2022-11-25 23:40:03,014 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:40:03,051 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:40:03,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:40:03,055 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:40:03,055 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:40:03,056 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_16_good.i [2022-11-25 23:40:06,276 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:40:06,669 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:40:06,673 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fscanf_postinc_16_good.i [2022-11-25 23:40:06,707 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/data/08935015b/4c56000b17554930a20c91f842b5f726/FLAGb2cc778c3 [2022-11-25 23:40:06,732 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/data/08935015b/4c56000b17554930a20c91f842b5f726 [2022-11-25 23:40:06,736 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:40:06,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:40:06,742 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:40:06,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:40:06,747 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:40:06,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:40:06" (1/1) ... [2022-11-25 23:40:06,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f9e2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:06, skipping insertion in model container [2022-11-25 23:40:06,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:40:06" (1/1) ... [2022-11-25 23:40:06,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:40:06,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:40:07,280 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:40:07,794 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:40:07,800 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:40:07,804 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:40:07,812 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:40:07,814 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:40:07,861 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:40:07,863 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:40:07,877 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:40:07,908 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:40:07,957 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:40:07,965 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:40:07,966 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:40:07,968 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:40:07,969 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:40:07,975 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:40:07,976 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:40:08,114 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:40:08,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08 WrapperNode [2022-11-25 23:40:08,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:40:08,116 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:40:08,117 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:40:08,118 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:40:08,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,184 INFO L138 Inliner]: procedures = 501, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 83 [2022-11-25 23:40:08,185 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:40:08,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:40:08,186 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:40:08,186 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:40:08,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,198 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,211 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:40:08,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:40:08,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:40:08,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:40:08,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (1/1) ... [2022-11-25 23:40:08,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:40:08,237 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:40:08,260 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:40:08,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:40:08,321 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-25 23:40:08,321 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-25 23:40:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:40:08,322 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:40:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:40:08,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:40:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:40:08,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:40:08,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:40:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:40:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:40:08,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:40:08,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:40:08,528 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:40:08,531 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:40:08,725 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:40:08,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:40:08,819 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-25 23:40:08,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:40:08 BoogieIcfgContainer [2022-11-25 23:40:08,822 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:40:08,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:40:08,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:40:08,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:40:08,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:40:06" (1/3) ... [2022-11-25 23:40:08,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2bc3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:40:08, skipping insertion in model container [2022-11-25 23:40:08,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:40:08" (2/3) ... [2022-11-25 23:40:08,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c2bc3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:40:08, skipping insertion in model container [2022-11-25 23:40:08,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:40:08" (3/3) ... [2022-11-25 23:40:08,838 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fscanf_postinc_16_good.i [2022-11-25 23:40:08,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:40:08,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-25 23:40:08,908 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:40:08,914 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=FINITE_AUTOMATA, 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;@52cae20f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:40:08,915 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-25 23:40:08,919 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.5) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-25 23:40:08,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 23:40:08,927 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:40:08,928 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:40:08,928 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 23:40:08,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:40:08,934 INFO L85 PathProgramCache]: Analyzing trace with hash 427365623, now seen corresponding path program 1 times [2022-11-25 23:40:08,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:40:08,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607365013] [2022-11-25 23:40:08,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:40:08,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:40:09,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:40:09,512 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 23:40:09,512 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:40:09,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607365013] [2022-11-25 23:40:09,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607365013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:40:09,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:40:09,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 23:40:09,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157995196] [2022-11-25 23:40:09,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:40:09,521 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:40:09,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:40:09,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:40:09,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:40:09,573 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.5) internal successors, (21), 21 states have internal predecessors, (21), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:40:09,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:40:09,706 INFO L93 Difference]: Finished difference Result 41 states and 46 transitions. [2022-11-25 23:40:09,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 23:40:09,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-25 23:40:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:40:09,716 INFO L225 Difference]: With dead ends: 41 [2022-11-25 23:40:09,717 INFO L226 Difference]: Without dead ends: 20 [2022-11-25 23:40:09,720 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-25 23:40:09,726 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:40:09,727 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:40:09,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-25 23:40:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-25 23:40:09,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:40:09,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-25 23:40:09,768 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 8 [2022-11-25 23:40:09,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:40:09,769 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-25 23:40:09,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:40:09,769 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-25 23:40:09,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:40:09,770 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:40:09,770 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:40:09,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:40:09,771 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 23:40:09,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:40:09,772 INFO L85 PathProgramCache]: Analyzing trace with hash 363432496, now seen corresponding path program 1 times [2022-11-25 23:40:09,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:40:09,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497816682] [2022-11-25 23:40:09,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:40:09,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:40:09,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:40:09,920 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 23:40:09,920 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:40:09,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497816682] [2022-11-25 23:40:09,920 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497816682] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:40:09,921 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:40:09,921 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:40:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210791882] [2022-11-25 23:40:09,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:40:09,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:40:09,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:40:09,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:40:09,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:40:09,924 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:40:09,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:40:09,973 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-25 23:40:09,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:40:09,975 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-11-25 23:40:09,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:40:09,976 INFO L225 Difference]: With dead ends: 20 [2022-11-25 23:40:09,976 INFO L226 Difference]: Without dead ends: 19 [2022-11-25 23:40:09,976 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 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 23:40:09,978 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:40:09,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:40:09,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-25 23:40:09,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-25 23:40:09,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 23:40:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-25 23:40:09,983 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 9 [2022-11-25 23:40:09,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:40:09,984 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-25 23:40:09,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 23:40:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-25 23:40:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:40:09,985 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:40:09,985 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:40:09,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 23:40:09,985 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-25 23:40:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:40:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash -2032867048, now seen corresponding path program 1 times [2022-11-25 23:40:09,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:40:09,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [760740070] [2022-11-25 23:40:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:40:09,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:40:10,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:40:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:40:10,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:40:10,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [760740070] [2022-11-25 23:40:10,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [760740070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:40:10,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:40:10,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 23:40:10,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310346139] [2022-11-25 23:40:10,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:40:10,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 23:40:10,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:40:10,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 23:40:10,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 23:40:10,147 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:40:10,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:40:10,193 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-25 23:40:10,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:40:10,193 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 13 [2022-11-25 23:40:10,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:40:10,194 INFO L225 Difference]: With dead ends: 19 [2022-11-25 23:40:10,194 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:40:10,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 23:40:10,202 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 23:40:10,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 23:40:10,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:40:10,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:40:10,204 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 23:40:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:40:10,204 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2022-11-25 23:40:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:40:10,205 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:40:10,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-25 23:40:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:40:10,205 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:40:10,208 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-25 23:40:10,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-25 23:40:10,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-25 23:40:10,209 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-25 23:40:10,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 23:40:10,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:40:10,255 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-25 23:40:10,255 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-25 23:40:10,255 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-25 23:40:10,255 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-25 23:40:10,258 INFO L895 garLoopResultBuilder]: At program point L1567(line 1567) the Hoare annotation is: (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483648)) [2022-11-25 23:40:10,259 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-11-25 23:40:10,259 INFO L895 garLoopResultBuilder]: At program point L1563(line 1563) the Hoare annotation is: (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483648)) [2022-11-25 23:40:10,260 INFO L899 garLoopResultBuilder]: For program point L1559(lines 1559 1568) no Hoare annotation was computed. [2022-11-25 23:40:10,260 INFO L899 garLoopResultBuilder]: For program point L1584(line 1584) no Hoare annotation was computed. [2022-11-25 23:40:10,260 INFO L899 garLoopResultBuilder]: For program point L1584-1(line 1584) no Hoare annotation was computed. [2022-11-25 23:40:10,260 INFO L895 garLoopResultBuilder]: At program point L1576-2(lines 1573 1590) the Hoare annotation is: (= |ULTIMATE.start_goodG2B_~data~1#1| 2) [2022-11-25 23:40:10,261 INFO L899 garLoopResultBuilder]: For program point L1572(lines 1572 1590) no Hoare annotation was computed. [2022-11-25 23:40:10,261 INFO L902 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: true [2022-11-25 23:40:10,261 INFO L902 garLoopResultBuilder]: At program point L1601-1(line 1601) the Hoare annotation is: true [2022-11-25 23:40:10,261 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-25 23:40:10,261 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:40:10,262 INFO L895 garLoopResultBuilder]: At program point L1552-2(lines 1549 1571) the Hoare annotation is: (<= 0 (+ (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~0#1.base|) |ULTIMATE.start_goodB2G_~#data~0#1.offset|) 2147483648)) [2022-11-25 23:40:10,262 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1561) no Hoare annotation was computed. [2022-11-25 23:40:10,262 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:40:10,262 INFO L899 garLoopResultBuilder]: For program point L1561(line 1561) no Hoare annotation was computed. [2022-11-25 23:40:10,262 INFO L899 garLoopResultBuilder]: For program point L1561-1(line 1561) no Hoare annotation was computed. [2022-11-25 23:40:10,263 INFO L899 garLoopResultBuilder]: For program point L1557-1(lines 1557 1570) no Hoare annotation was computed. [2022-11-25 23:40:10,263 INFO L902 garLoopResultBuilder]: At program point L1586(line 1586) the Hoare annotation is: true [2022-11-25 23:40:10,263 INFO L902 garLoopResultBuilder]: At program point L1599(line 1599) the Hoare annotation is: true [2022-11-25 23:40:10,263 INFO L899 garLoopResultBuilder]: For program point L1599-1(line 1599) no Hoare annotation was computed. [2022-11-25 23:40:10,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1584) no Hoare annotation was computed. [2022-11-25 23:40:10,271 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-25 23:40:10,275 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:40:10,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:40:10 BoogieIcfgContainer [2022-11-25 23:40:10,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:40:10,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:40:10,302 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:40:10,302 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:40:10,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:40:08" (3/4) ... [2022-11-25 23:40:10,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:40:10,312 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-25 23:40:10,312 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-25 23:40:10,322 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-25 23:40:10,323 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-25 23:40:10,323 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:40:10,323 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:40:10,364 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:40:10,364 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:40:10,365 INFO L158 Benchmark]: Toolchain (without parser) took 3626.18ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 99.1MB in the beginning and 140.9MB in the end (delta: -41.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:40:10,365 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:40:10,365 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1373.49ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 58.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-25 23:40:10,366 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.61ms. Allocated memory is still 142.6MB. Free memory was 57.7MB in the beginning and 55.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:40:10,366 INFO L158 Benchmark]: Boogie Preprocessor took 29.80ms. Allocated memory is still 142.6MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:40:10,366 INFO L158 Benchmark]: RCFGBuilder took 606.02ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 109.4MB in the end (delta: -56.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-25 23:40:10,367 INFO L158 Benchmark]: TraceAbstraction took 1475.02ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 108.1MB in the beginning and 144.0MB in the end (delta: -35.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. [2022-11-25 23:40:10,371 INFO L158 Benchmark]: Witness Printer took 62.58ms. Allocated memory is still 182.5MB. Free memory was 144.0MB in the beginning and 140.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:40:10,373 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 113.2MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1373.49ms. Allocated memory is still 142.6MB. Free memory was 98.5MB in the beginning and 58.1MB in the end (delta: 40.4MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 68.61ms. Allocated memory is still 142.6MB. Free memory was 57.7MB in the beginning and 55.0MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.80ms. Allocated memory is still 142.6MB. Free memory was 55.0MB in the beginning and 53.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 606.02ms. Allocated memory is still 142.6MB. Free memory was 52.9MB in the beginning and 109.4MB in the end (delta: -56.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1475.02ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 108.1MB in the beginning and 144.0MB in the end (delta: -35.9MB). Peak memory consumption was 5.8MB. Max. memory is 16.1GB. * Witness Printer took 62.58ms. Allocated memory is still 182.5MB. Free memory was 144.0MB in the beginning and 140.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1561]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1584]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 26 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 88 IncrementalHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 37 mSDtfsCounter, 88 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 15 PreInvPairs, 19 NumberOfFragments, 36 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 65 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 4 specifications checked. All of them hold - InvariantResult [Line: 1601]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1573]: Loop Invariant Derived loop invariant: data == 2 - InvariantResult [Line: 1549]: Loop Invariant Derived loop invariant: 0 <= unknown-#memory_int-unknown[data][data] + 2147483648 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:40:10,394 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe61625c-656c-40d9-8a0e-88ae82f15a2e/bin/utaipan-ByfvJB40ur/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