./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loops/sum_array-2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 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_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum_array-2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba --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 32bit --witnessprinter.graph.data.programhash 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 --- 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-b5237d8 [2022-11-22 02:02:05,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 02:02:05,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 02:02:06,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 02:02:06,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 02:02:06,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 02:02:06,007 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 02:02:06,009 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 02:02:06,012 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 02:02:06,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 02:02:06,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 02:02:06,020 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 02:02:06,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 02:02:06,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 02:02:06,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 02:02:06,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 02:02:06,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 02:02:06,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 02:02:06,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 02:02:06,037 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 02:02:06,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 02:02:06,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 02:02:06,042 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 02:02:06,043 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 02:02:06,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 02:02:06,054 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 02:02:06,055 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 02:02:06,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 02:02:06,058 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 02:02:06,059 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 02:02:06,059 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 02:02:06,060 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 02:02:06,062 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 02:02:06,063 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 02:02:06,064 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 02:02:06,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 02:02:06,065 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 02:02:06,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 02:02:06,066 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 02:02:06,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 02:02:06,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 02:02:06,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 02:02:06,108 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 02:02:06,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 02:02:06,109 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 02:02:06,109 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 02:02:06,110 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 02:02:06,111 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 02:02:06,111 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 02:02:06,111 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 02:02:06,111 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 02:02:06,112 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 02:02:06,113 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 02:02:06,113 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 02:02:06,113 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 02:02:06,114 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 02:02:06,114 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 02:02:06,114 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 02:02:06,114 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 02:02:06,115 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 02:02:06,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 02:02:06,116 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 02:02:06,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 02:02:06,116 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 02:02:06,117 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 02:02:06,117 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 02:02:06,117 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 02:02:06,117 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 02:02:06,118 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 02:02:06,118 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 02:02:06,119 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 02:02:06,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 02:02:06,119 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 02:02:06,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 02:02:06,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 02:02:06,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 02:02:06,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:06,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 02:02:06,121 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 02:02:06,122 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 02:02:06,122 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 02:02:06,122 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 02:02:06,122 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 02:02:06,123 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 02:02:06,123 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 02:02:06,123 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_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e94a2410b8f9c85a45197b99fd856588e050ecf98cb4c3bee10ba4be0dc2732 [2022-11-22 02:02:06,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 02:02:06,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 02:02:06,479 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 02:02:06,481 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 02:02:06,481 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 02:02:06,483 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/loops/sum_array-2-1.i [2022-11-22 02:02:09,525 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 02:02:09,727 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 02:02:09,728 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/sv-benchmarks/c/loops/sum_array-2-1.i [2022-11-22 02:02:09,733 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/data/859caf537/6847e1c10f8548e1b68c8cf1664fd6ee/FLAGf991877ed [2022-11-22 02:02:09,747 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/data/859caf537/6847e1c10f8548e1b68c8cf1664fd6ee [2022-11-22 02:02:09,750 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 02:02:09,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 02:02:09,753 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:09,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 02:02:09,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 02:02:09,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:09,759 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d949247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09, skipping insertion in model container [2022-11-22 02:02:09,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:09,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 02:02:09,782 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 02:02:09,932 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/sv-benchmarks/c/loops/sum_array-2-1.i[940,953] [2022-11-22 02:02:09,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:09,958 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 02:02:09,971 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/sv-benchmarks/c/loops/sum_array-2-1.i[940,953] [2022-11-22 02:02:09,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 02:02:09,994 INFO L208 MainTranslator]: Completed translation [2022-11-22 02:02:09,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09 WrapperNode [2022-11-22 02:02:09,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 02:02:09,996 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:09,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 02:02:09,997 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 02:02:10,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,022 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,043 INFO L138 Inliner]: procedures = 18, calls = 29, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 108 [2022-11-22 02:02:10,044 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 02:02:10,045 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 02:02:10,045 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 02:02:10,045 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 02:02:10,054 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,056 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,069 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 02:02:10,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 02:02:10,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 02:02:10,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 02:02:10,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (1/1) ... [2022-11-22 02:02:10,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 02:02:10,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:10,104 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 02:02:10,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 02:02:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 02:02:10,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 02:02:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 02:02:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 02:02:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 02:02:10,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 02:02:10,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 02:02:10,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 02:02:10,221 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 02:02:10,223 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 02:02:10,413 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 02:02:10,466 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 02:02:10,466 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-11-22 02:02:10,469 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:10 BoogieIcfgContainer [2022-11-22 02:02:10,469 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 02:02:10,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 02:02:10,471 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 02:02:10,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 02:02:10,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:09" (1/3) ... [2022-11-22 02:02:10,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dff862d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:10, skipping insertion in model container [2022-11-22 02:02:10,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:09" (2/3) ... [2022-11-22 02:02:10,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dff862d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:10, skipping insertion in model container [2022-11-22 02:02:10,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:10" (3/3) ... [2022-11-22 02:02:10,478 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_array-2-1.i [2022-11-22 02:02:10,498 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 02:02:10,498 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-22 02:02:10,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 02:02:10,572 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;@6e5b992b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 02:02:10,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-22 02:02:10,577 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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) [2022-11-22 02:02:10,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 02:02:10,586 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:10,587 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 02:02:10,588 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)] === [2022-11-22 02:02:10,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:10,593 INFO L85 PathProgramCache]: Analyzing trace with hash -591964480, now seen corresponding path program 1 times [2022-11-22 02:02:10,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:10,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347238011] [2022-11-22 02:02:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:10,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:10,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:11,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:11,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347238011] [2022-11-22 02:02:11,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347238011] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 02:02:11,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 02:02:11,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-22 02:02:11,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532001481] [2022-11-22 02:02:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 02:02:11,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-22 02:02:11,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:11,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-22 02:02:11,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:11,322 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 17 states have internal predecessors, (24), 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) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-22 02:02:11,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:11,510 INFO L93 Difference]: Finished difference Result 53 states and 69 transitions. [2022-11-22 02:02:11,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 02:02:11,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) Word has length 6 [2022-11-22 02:02:11,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:11,523 INFO L225 Difference]: With dead ends: 53 [2022-11-22 02:02:11,523 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 02:02:11,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-22 02:02:11,529 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:11,530 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 27 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 02:02:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 02:02:11,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 19. [2022-11-22 02:02:11,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 18 states have internal predecessors, (22), 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) [2022-11-22 02:02:11,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-22 02:02:11,561 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 6 [2022-11-22 02:02:11,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:11,562 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-22 02:02:11,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 5 states have internal predecessors, (6), 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) [2022-11-22 02:02:11,562 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-22 02:02:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 02:02:11,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:11,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:11,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 02:02:11,564 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:02:11,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:11,565 INFO L85 PathProgramCache]: Analyzing trace with hash 101714517, now seen corresponding path program 1 times [2022-11-22 02:02:11,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:11,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479361811] [2022-11-22 02:02:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:11,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:11,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:13,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:13,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 02:02:13,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479361811] [2022-11-22 02:02:13,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479361811] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 02:02:13,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209197864] [2022-11-22 02:02:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:13,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:13,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 [2022-11-22 02:02:13,239 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 02:02:13,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 02:02:13,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:02:13,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-22 02:02:13,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:02:13,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-11-22 02:02:13,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-22 02:02:13,620 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-11-22 02:02:13,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-11-22 02:02:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:13,832 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 02:02:16,569 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-22 02:02:16,570 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 113 [2022-11-22 02:02:16,895 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-22 02:02:16,914 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 47 [2022-11-22 02:02:16,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 58 [2022-11-22 02:02:16,976 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:02:16,997 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5 [2022-11-22 02:02:17,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,019 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2022-11-22 02:02:17,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-11-22 02:02:17,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 02:02:17,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209197864] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 02:02:17,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1765086447] [2022-11-22 02:02:17,117 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 02:02:17,117 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 02:02:17,121 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 02:02:17,140 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 02:02:17,140 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 02:02:17,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,288 INFO L321 Elim1Store]: treesize reduction 129, result has 17.8 percent of original size [2022-11-22 02:02:17,289 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 55 treesize of output 73 [2022-11-22 02:02:17,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,319 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 13 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 44 [2022-11-22 02:02:17,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,374 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2022-11-22 02:02:17,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 83 [2022-11-22 02:02:17,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:17,867 INFO L321 Elim1Store]: treesize reduction 129, result has 5.1 percent of original size [2022-11-22 02:02:17,867 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 549 treesize of output 441 [2022-11-22 02:02:18,034 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-22 02:02:18,138 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-22 02:02:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 02:02:18,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 40 [2022-11-22 02:02:18,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-22 02:02:18,263 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-11-22 02:02:18,326 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 02:02:19,161 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '207#(and (= |ULTIMATE.start_main_~i~0#1| 0) (= |ULTIMATE.start_main_~#C~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (not (<= (+ |ULTIMATE.start_main_#t~mem9#1| |ULTIMATE.start_main_#t~mem10#1|) 2147483647)) (= (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 4))) |ULTIMATE.start_main_#t~mem10#1|) (< (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (mod |ULTIMATE.start_main_~M~0#1| 4294967296)) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (= |ULTIMATE.start_main_#t~mem9#1| (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ |ULTIMATE.start_main_~#A~0#1.offset| (* (ite (<= (mod |ULTIMATE.start_main_~i~0#1| 4294967296) 2147483647) (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (+ (mod |ULTIMATE.start_main_~i~0#1| 4294967296) (- 4294967296))) 4)))) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#C~0#1.base|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2022-11-22 02:02:19,161 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-22 02:02:19,162 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-22 02:02:19,162 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2022-11-22 02:02:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381538262] [2022-11-22 02:02:19,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-22 02:02:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-22 02:02:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 02:02:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-22 02:02:19,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=800, Unknown=1, NotChecked=0, Total=930 [2022-11-22 02:02:19,165 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 26 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-11-22 02:02:23,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 02:02:23,220 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2022-11-22 02:02:23,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-11-22 02:02:23,221 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 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) Word has length 10 [2022-11-22 02:02:23,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 02:02:23,223 INFO L225 Difference]: With dead ends: 65 [2022-11-22 02:02:23,223 INFO L226 Difference]: Without dead ends: 64 [2022-11-22 02:02:23,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 706 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=424, Invalid=2125, Unknown=1, NotChecked=0, Total=2550 [2022-11-22 02:02:23,225 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 121 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-22 02:02:23,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 93 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-22 02:02:23,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-22 02:02:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 28. [2022-11-22 02:02:23,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 27 states have internal predecessors, (34), 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) [2022-11-22 02:02:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2022-11-22 02:02:23,235 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 10 [2022-11-22 02:02:23,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 02:02:23,236 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2022-11-22 02:02:23,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 1.12) internal successors, (28), 26 states have internal predecessors, (28), 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) [2022-11-22 02:02:23,236 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2022-11-22 02:02:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-22 02:02:23,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 02:02:23,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 02:02:23,248 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-22 02:02:23,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 02:02:23,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-22 02:02:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 02:02:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash -1141817182, now seen corresponding path program 1 times [2022-11-22 02:02:23,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 02:02:23,445 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879347719] [2022-11-22 02:02:23,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 02:02:23,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 02:02:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:23,500 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 02:02:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 02:02:23,567 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 02:02:23,568 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 02:02:23,572 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-22 02:02:23,574 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-22 02:02:23,576 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-22 02:02:23,577 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-22 02:02:23,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-22 02:02:23,580 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-22 02:02:23,584 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 02:02:23,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:02:23 BoogieIcfgContainer [2022-11-22 02:02:23,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 02:02:23,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 02:02:23,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 02:02:23,623 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 02:02:23,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:10" (3/4) ... [2022-11-22 02:02:23,625 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-22 02:02:23,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd153338-61a2-49a8-ad48-21b915edf7d0/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 02:02:23,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 02:02:23,685 INFO L158 Benchmark]: Toolchain (without parser) took 13934.21ms. Allocated memory was 178.3MB in the beginning and 228.6MB in the end (delta: 50.3MB). Free memory was 131.9MB in the beginning and 184.6MB in the end (delta: -52.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:23,686 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:23,686 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.40ms. Allocated memory is still 178.3MB. Free memory was 131.3MB in the beginning and 120.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 02:02:23,686 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.94ms. Allocated memory is still 178.3MB. Free memory was 120.9MB in the beginning and 119.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:23,687 INFO L158 Benchmark]: Boogie Preprocessor took 27.62ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 117.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:23,687 INFO L158 Benchmark]: RCFGBuilder took 396.14ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 101.6MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 02:02:23,688 INFO L158 Benchmark]: TraceAbstraction took 13150.86ms. Allocated memory was 178.3MB in the beginning and 228.6MB in the end (delta: 50.3MB). Free memory was 101.0MB in the beginning and 187.7MB in the end (delta: -86.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 02:02:23,688 INFO L158 Benchmark]: Witness Printer took 62.16ms. Allocated memory is still 228.6MB. Free memory was 186.7MB in the beginning and 184.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 02:02:23,694 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 127.9MB. Free memory was 96.6MB in the beginning and 96.6MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.40ms. Allocated memory is still 178.3MB. Free memory was 131.3MB in the beginning and 120.9MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.94ms. Allocated memory is still 178.3MB. Free memory was 120.9MB in the beginning and 119.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.62ms. Allocated memory is still 178.3MB. Free memory was 119.3MB in the beginning and 117.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 396.14ms. Allocated memory is still 178.3MB. Free memory was 117.8MB in the beginning and 101.6MB in the end (delta: 16.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 13150.86ms. Allocated memory was 178.3MB in the beginning and 228.6MB in the end (delta: 50.3MB). Free memory was 101.0MB in the beginning and 187.7MB in the end (delta: -86.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 62.16ms. Allocated memory is still 228.6MB. Free memory was 186.7MB in the beginning and 184.6MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 42]: integer overflow possible integer overflow possible We found a FailurePath: [L27] unsigned int M = __VERIFIER_nondet_uint(); [L28] COND FALSE !(M > 1000000) [L31] int A[M], B[M], C[M]; [L32] unsigned int i; [L33] i=0 VAL [A={6:0}, B={3:0}, C={5:0}, i=0, M=1] [L33] COND TRUE i