./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i --full-output --architecture 32bit -------------------------------------------------------------------------------- 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_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/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_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/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 32bit --witnessprinter.graph.data.programhash ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 --- 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 [2022-11-26 00:33:05,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:33:05,004 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:33:05,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:33:05,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:33:05,039 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:33:05,042 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:33:05,046 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:33:05,048 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:33:05,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:33:05,056 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:33:05,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:33:05,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:33:05,063 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:33:05,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:33:05,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:33:05,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:33:05,070 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:33:05,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:33:05,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:33:05,080 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:33:05,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:33:05,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:33:05,085 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:33:05,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:33:05,096 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:33:05,096 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:33:05,098 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:33:05,099 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:33:05,100 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:33:05,101 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:33:05,102 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:33:05,104 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:33:05,105 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:33:05,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:33:05,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:33:05,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:33:05,110 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:33:05,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:33:05,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:33:05,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:33:05,113 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-26 00:33:05,155 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:33:05,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:33:05,156 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:33:05,156 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:33:05,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:33:05,157 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:33:05,158 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:33:05,158 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:33:05,158 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:33:05,158 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:33:05,160 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:33:05,160 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:33:05,160 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:33:05,160 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:33:05,161 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:33:05,161 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:33:05,161 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:33:05,161 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:33:05,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:33:05,162 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:33:05,162 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:33:05,163 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:33:05,163 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:33:05,163 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:33:05,163 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:33:05,163 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:33:05,164 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:33:05,164 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:33:05,164 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:33:05,164 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:33:05,164 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:33:05,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:33:05,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:33:05,165 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:33:05,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:05,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:33:05,166 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:33:05,166 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:33:05,166 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:33:05,166 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:33:05,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:33:05,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:33:05,167 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:33:05,167 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_70714f13-210e-4f91-9346-0b3ef14f8516/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea0eb860624f2529729bf06b2cf9cdf66fc11dde388f7654e825b0ff58526d73 [2022-11-26 00:33:05,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:33:05,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:33:05,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:33:05,448 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:33:05,449 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:33:05,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2022-11-26 00:33:08,449 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:33:08,633 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:33:08,634 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/sv-benchmarks/c/array-lopstr16/flag_loopdep.i [2022-11-26 00:33:08,640 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/data/5f4b3a30a/2fb5eae6cd4d44b29531ea15261d0a58/FLAG749cc9cdf [2022-11-26 00:33:08,656 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/data/5f4b3a30a/2fb5eae6cd4d44b29531ea15261d0a58 [2022-11-26 00:33:08,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:33:08,660 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:33:08,661 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:08,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:33:08,665 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:33:08,666 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6722ae0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08, skipping insertion in model container [2022-11-26 00:33:08,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:33:08,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:33:08,837 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_70714f13-210e-4f91-9346-0b3ef14f8516/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2022-11-26 00:33:08,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:08,865 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:33:08,877 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_70714f13-210e-4f91-9346-0b3ef14f8516/sv-benchmarks/c/array-lopstr16/flag_loopdep.i[805,818] [2022-11-26 00:33:08,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:33:08,898 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:33:08,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08 WrapperNode [2022-11-26 00:33:08,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:33:08,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:08,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:33:08,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:33:08,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,934 INFO L138 Inliner]: procedures = 21, calls = 15, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-26 00:33:08,934 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:33:08,935 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:33:08,935 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:33:08,935 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:33:08,945 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,945 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,957 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,958 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:33:08,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:33:08,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:33:08,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:33:08,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (1/1) ... [2022-11-26 00:33:08,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:33:08,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:08,993 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:33:08,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:33:09,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-26 00:33:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:33:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:33:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:33:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-26 00:33:09,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-26 00:33:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:33:09,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:33:09,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:33:09,125 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:33:09,127 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:33:09,291 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:33:09,378 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:33:09,378 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-26 00:33:09,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:09 BoogieIcfgContainer [2022-11-26 00:33:09,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:33:09,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:33:09,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:33:09,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:33:09,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:33:08" (1/3) ... [2022-11-26 00:33:09,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78426405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:09, skipping insertion in model container [2022-11-26 00:33:09,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:33:08" (2/3) ... [2022-11-26 00:33:09,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78426405 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:33:09, skipping insertion in model container [2022-11-26 00:33:09,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:09" (3/3) ... [2022-11-26 00:33:09,391 INFO L112 eAbstractionObserver]: Analyzing ICFG flag_loopdep.i [2022-11-26 00:33:09,441 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:33:09,441 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-11-26 00:33:09,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:33:09,518 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;@943951d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:33:09,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-11-26 00:33:09,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-11-26 00:33:09,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-26 00:33:09,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:09,531 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-26 00:33:09,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:09,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:09,538 INFO L85 PathProgramCache]: Analyzing trace with hash 111117, now seen corresponding path program 1 times [2022-11-26 00:33:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:09,549 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030377042] [2022-11-26 00:33:09,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:09,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:09,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:09,857 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:09,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030377042] [2022-11-26 00:33:09,858 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030377042] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:09,858 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:09,859 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:33:09,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394763026] [2022-11-26 00:33:09,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:09,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:09,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:09,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:09,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:09,900 INFO L87 Difference]: Start difference. First operand has 17 states, 10 states have (on average 1.9) internal successors, (19), 16 states have internal predecessors, (19), 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 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:33:09,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:09,983 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-26 00:33:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:33:09,986 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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 3 [2022-11-26 00:33:09,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:09,998 INFO L225 Difference]: With dead ends: 33 [2022-11-26 00:33:09,998 INFO L226 Difference]: Without dead ends: 29 [2022-11-26 00:33:10,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:33:10,005 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 16 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:10,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 29 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:10,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-26 00:33:10,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 19. [2022-11-26 00:33:10,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.6923076923076923) 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) [2022-11-26 00:33:10,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2022-11-26 00:33:10,035 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 3 [2022-11-26 00:33:10,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:10,035 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2022-11-26 00:33:10,036 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.0) internal successors, (3), 3 states have internal predecessors, (3), 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) [2022-11-26 00:33:10,036 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2022-11-26 00:33:10,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:33:10,036 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:10,037 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:33:10,037 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:33:10,037 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:10,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:10,038 INFO L85 PathProgramCache]: Analyzing trace with hash 3451142, now seen corresponding path program 1 times [2022-11-26 00:33:10,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:10,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731155429] [2022-11-26 00:33:10,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:10,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:10,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:10,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:10,112 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:10,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731155429] [2022-11-26 00:33:10,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731155429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:10,113 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:10,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:33:10,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359511251] [2022-11-26 00:33:10,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:10,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:33:10,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:10,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:33:10,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:33:10,117 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-26 00:33:10,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:10,170 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-11-26 00:33:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:33:10,171 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2022-11-26 00:33:10,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:10,172 INFO L225 Difference]: With dead ends: 34 [2022-11-26 00:33:10,172 INFO L226 Difference]: Without dead ends: 27 [2022-11-26 00:33:10,172 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 [2022-11-26 00:33:10,174 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 7 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:10,175 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 28 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:10,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-26 00:33:10,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 22. [2022-11-26 00:33:10,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.5625) internal successors, (25), 21 states have internal predecessors, (25), 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) [2022-11-26 00:33:10,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2022-11-26 00:33:10,180 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 4 [2022-11-26 00:33:10,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:10,180 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2022-11-26 00:33:10,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2022-11-26 00:33:10,181 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2022-11-26 00:33:10,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:33:10,186 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:10,187 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-26 00:33:10,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:33:10,187 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:10,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:10,188 INFO L85 PathProgramCache]: Analyzing trace with hash -984633058, now seen corresponding path program 1 times [2022-11-26 00:33:10,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:10,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515735454] [2022-11-26 00:33:10,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:10,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:10,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:10,427 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:10,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:10,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515735454] [2022-11-26 00:33:10,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515735454] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:10,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2137662912] [2022-11-26 00:33:10,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:10,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:10,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:10,432 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:10,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-26 00:33:10,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:10,544 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:33:10,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:10,641 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:10,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:33:10,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2137662912] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:10,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-26 00:33:10,643 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-26 00:33:10,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594458543] [2022-11-26 00:33:10,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:10,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:33:10,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:10,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:33:10,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-26 00:33:10,653 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand has 6 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) [2022-11-26 00:33:10,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:10,763 INFO L93 Difference]: Finished difference Result 35 states and 39 transitions. [2022-11-26 00:33:10,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-26 00:33:10,764 INFO L78 Accepts]: Start accepts. Automaton has has 6 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 [2022-11-26 00:33:10,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:10,766 INFO L225 Difference]: With dead ends: 35 [2022-11-26 00:33:10,767 INFO L226 Difference]: Without dead ends: 34 [2022-11-26 00:33:10,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-26 00:33:10,771 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 33 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:10,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 40 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:33:10,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-26 00:33:10,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 21. [2022-11-26 00:33:10,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.5) internal successors, (24), 20 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) [2022-11-26 00:33:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2022-11-26 00:33:10,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 6 [2022-11-26 00:33:10,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:10,786 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2022-11-26 00:33:10,786 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 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) [2022-11-26 00:33:10,786 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2022-11-26 00:33:10,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:33:10,787 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:10,788 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-26 00:33:10,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-26 00:33:10,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:10,994 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:10,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:10,995 INFO L85 PathProgramCache]: Analyzing trace with hash -458853680, now seen corresponding path program 1 times [2022-11-26 00:33:10,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:10,996 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112173339] [2022-11-26 00:33:10,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:10,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:11,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:11,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:11,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112173339] [2022-11-26 00:33:11,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112173339] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:11,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787885205] [2022-11-26 00:33:11,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:11,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:11,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:11,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:11,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-26 00:33:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:11,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:33:11,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:11,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:11,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:11,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787885205] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:11,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [52726921] [2022-11-26 00:33:11,333 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:33:11,333 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:33:11,342 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:33:11,347 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:33:11,348 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:33:11,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,463 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:33:11,464 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:33:11,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:33:11,548 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 15 treesize of output 11 [2022-11-26 00:33:11,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:11,592 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 15 treesize of output 11 [2022-11-26 00:33:11,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,645 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-26 00:33:11,645 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 62 [2022-11-26 00:33:11,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,712 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-26 00:33:11,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 73 [2022-11-26 00:33:11,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,791 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 23 treesize of output 22 [2022-11-26 00:33:11,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:11,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2022-11-26 00:33:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,935 INFO L321 Elim1Store]: treesize reduction 114, result has 34.5 percent of original size [2022-11-26 00:33:11,936 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 101 [2022-11-26 00:33:11,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:11,982 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 50 [2022-11-26 00:33:12,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:12,427 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:33:12,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 407 treesize of output 331 [2022-11-26 00:33:12,590 INFO L321 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2022-11-26 00:33:12,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 364 treesize of output 378 [2022-11-26 00:33:12,812 INFO L321 Elim1Store]: treesize reduction 318, result has 18.9 percent of original size [2022-11-26 00:33:12,813 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 375 treesize of output 412 [2022-11-26 00:33:12,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:12,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:12,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 369 treesize of output 344 [2022-11-26 00:33:12,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:12,890 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-11-26 00:33:12,891 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 361 treesize of output 365 [2022-11-26 00:33:13,935 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 23 treesize of output 1 [2022-11-26 00:33:13,942 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 15 treesize of output 11 [2022-11-26 00:33:13,954 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 15 treesize of output 11 [2022-11-26 00:33:13,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 17 [2022-11-26 00:33:13,973 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-11-26 00:33:14,004 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:33:14,411 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '306#(and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 1000000 |ULTIMATE.start_init_~size#1|) (< 2147483646 |ULTIMATE.start_init_#t~post1#1|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (= 1000000 |ULTIMATE.start_init_#in~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-26 00:33:14,411 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:33:14,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:33:14,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2022-11-26 00:33:14,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891891931] [2022-11-26 00:33:14,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:33:14,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-26 00:33:14,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:14,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-26 00:33:14,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:33:14,414 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-26 00:33:14,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:14,584 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2022-11-26 00:33:14,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:33:14,585 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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 7 [2022-11-26 00:33:14,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:14,587 INFO L225 Difference]: With dead ends: 83 [2022-11-26 00:33:14,588 INFO L226 Difference]: Without dead ends: 82 [2022-11-26 00:33:14,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=84, Invalid=258, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:33:14,591 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 70 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:14,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 77 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:33:14,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-26 00:33:14,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 30. [2022-11-26 00:33:14,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.44) internal successors, (36), 29 states have internal predecessors, (36), 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) [2022-11-26 00:33:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2022-11-26 00:33:14,604 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 7 [2022-11-26 00:33:14,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:14,605 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2022-11-26 00:33:14,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 1.6363636363636365) internal successors, (18), 11 states have internal predecessors, (18), 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) [2022-11-26 00:33:14,605 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2022-11-26 00:33:14,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:33:14,606 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:14,606 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-11-26 00:33:14,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:14,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:14,812 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:14,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:14,812 INFO L85 PathProgramCache]: Analyzing trace with hash -266173438, now seen corresponding path program 1 times [2022-11-26 00:33:14,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:14,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209144799] [2022-11-26 00:33:14,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:14,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:14,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:14,894 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:33:14,895 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:14,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209144799] [2022-11-26 00:33:14,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209144799] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:14,897 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:14,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:33:14,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468158826] [2022-11-26 00:33:14,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:14,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:14,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:14,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:14,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:14,899 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-26 00:33:14,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:14,919 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2022-11-26 00:33:14,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:14,920 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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 7 [2022-11-26 00:33:14,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:14,922 INFO L225 Difference]: With dead ends: 43 [2022-11-26 00:33:14,922 INFO L226 Difference]: Without dead ends: 30 [2022-11-26 00:33:14,923 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:14,923 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:14,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 21 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:14,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-26 00:33:14,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-26 00:33:14,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.4) internal successors, (35), 29 states have internal predecessors, (35), 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) [2022-11-26 00:33:14,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 35 transitions. [2022-11-26 00:33:14,929 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 35 transitions. Word has length 7 [2022-11-26 00:33:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:14,930 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 35 transitions. [2022-11-26 00:33:14,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 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) [2022-11-26 00:33:14,930 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 35 transitions. [2022-11-26 00:33:14,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:33:14,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:14,931 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:14,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-26 00:33:14,931 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1363710611, now seen corresponding path program 1 times [2022-11-26 00:33:14,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:14,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335964682] [2022-11-26 00:33:14,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:14,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:14,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:15,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:33:15,012 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:15,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335964682] [2022-11-26 00:33:15,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335964682] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:15,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855012912] [2022-11-26 00:33:15,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:15,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:15,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:15,014 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:15,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-26 00:33:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:15,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:33:15,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:15,147 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:33:15,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:15,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:33:15,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855012912] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:15,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [959009800] [2022-11-26 00:33:15,190 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2022-11-26 00:33:15,190 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:33:15,191 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:33:15,191 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:33:15,193 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:33:15,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,234 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:33:15,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:33:15,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:33:15,272 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 15 treesize of output 11 [2022-11-26 00:33:15,286 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 15 treesize of output 11 [2022-11-26 00:33:15,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,330 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-26 00:33:15,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 62 [2022-11-26 00:33:15,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,386 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-26 00:33:15,386 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 73 [2022-11-26 00:33:15,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:15,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 49 [2022-11-26 00:33:15,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,537 INFO L321 Elim1Store]: treesize reduction 129, result has 35.2 percent of original size [2022-11-26 00:33:15,537 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 62 treesize of output 111 [2022-11-26 00:33:15,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 55 [2022-11-26 00:33:15,579 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 28 treesize of output 27 [2022-11-26 00:33:15,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:15,601 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:15,840 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 506 treesize of output 346 [2022-11-26 00:33:16,007 INFO L321 Elim1Store]: treesize reduction 327, result has 16.6 percent of original size [2022-11-26 00:33:16,008 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 505 treesize of output 523 [2022-11-26 00:33:16,257 INFO L321 Elim1Store]: treesize reduction 421, result has 20.9 percent of original size [2022-11-26 00:33:16,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 507 treesize of output 562 [2022-11-26 00:33:16,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:16,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:16,287 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 492 treesize of output 467 [2022-11-26 00:33:16,306 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 484 treesize of output 477 [2022-11-26 00:33:16,695 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 15 treesize of output 11 [2022-11-26 00:33:16,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 17 [2022-11-26 00:33:16,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-11-26 00:33:16,724 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 15 treesize of output 11 [2022-11-26 00:33:16,734 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 23 treesize of output 1 [2022-11-26 00:33:17,305 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:33:18,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [959009800] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:18,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:33:18,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4, 4] total 14 [2022-11-26 00:33:18,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663548018] [2022-11-26 00:33:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:18,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:33:18,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:18,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:33:18,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-26 00:33:18,096 INFO L87 Difference]: Start difference. First operand 30 states and 35 transitions. Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-26 00:33:18,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:18,786 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-11-26 00:33:18,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:33:18,787 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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 [2022-11-26 00:33:18,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:18,788 INFO L225 Difference]: With dead ends: 30 [2022-11-26 00:33:18,788 INFO L226 Difference]: Without dead ends: 29 [2022-11-26 00:33:18,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:33:18,789 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:18,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 18 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:33:18,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-26 00:33:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-26 00:33:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 25 states have (on average 1.36) internal successors, (34), 28 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) [2022-11-26 00:33:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-26 00:33:18,797 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 10 [2022-11-26 00:33:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:18,797 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-26 00:33:18,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 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) [2022-11-26 00:33:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-26 00:33:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:33:18,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:18,798 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:18,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:18,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:18,999 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:18,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:18,999 INFO L85 PathProgramCache]: Analyzing trace with hash -674643950, now seen corresponding path program 1 times [2022-11-26 00:33:18,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:19,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032604852] [2022-11-26 00:33:19,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:19,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:19,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-26 00:33:19,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:19,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032604852] [2022-11-26 00:33:19,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032604852] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:19,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:33:19,054 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:33:19,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389154965] [2022-11-26 00:33:19,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:19,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:33:19,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:19,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:33:19,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:19,056 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-26 00:33:19,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:19,078 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-26 00:33:19,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:33:19,079 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-11-26 00:33:19,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:19,079 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:33:19,079 INFO L226 Difference]: Without dead ends: 28 [2022-11-26 00:33:19,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:33:19,081 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 0 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:19,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 14 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:19,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-26 00:33:19,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-26 00:33:19,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 25 states have internal predecessors, (31), 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) [2022-11-26 00:33:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2022-11-26 00:33:19,098 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 11 [2022-11-26 00:33:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:19,098 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2022-11-26 00:33:19,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-11-26 00:33:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2022-11-26 00:33:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:33:19,100 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:19,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:19,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-26 00:33:19,100 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:19,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:19,101 INFO L85 PathProgramCache]: Analyzing trace with hash -674650771, now seen corresponding path program 1 times [2022-11-26 00:33:19,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:19,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506077171] [2022-11-26 00:33:19,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:19,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:19,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:19,163 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506077171] [2022-11-26 00:33:19,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506077171] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:19,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908904008] [2022-11-26 00:33:19,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:19,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:19,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:19,165 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:19,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-26 00:33:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:19,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:33:19,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:19,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:19,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:19,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-26 00:33:19,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908904008] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:19,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1908201220] [2022-11-26 00:33:19,320 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-26 00:33:19,320 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:33:19,321 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:33:19,321 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:33:19,321 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:33:19,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,350 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:33:19,350 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:33:19,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,376 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:33:19,376 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:33:19,397 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 15 treesize of output 11 [2022-11-26 00:33:19,414 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 15 treesize of output 11 [2022-11-26 00:33:19,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,457 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-26 00:33:19,458 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 73 [2022-11-26 00:33:19,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 38 [2022-11-26 00:33:19,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,493 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:19,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,550 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 23 treesize of output 22 [2022-11-26 00:33:19,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,561 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:19,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2022-11-26 00:33:19,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,627 INFO L321 Elim1Store]: treesize reduction 78, result has 36.1 percent of original size [2022-11-26 00:33:19,627 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 74 [2022-11-26 00:33:19,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,702 INFO L321 Elim1Store]: treesize reduction 114, result has 34.5 percent of original size [2022-11-26 00:33:19,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 101 [2022-11-26 00:33:19,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:19,930 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:33:19,930 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 336 [2022-11-26 00:33:20,078 INFO L321 Elim1Store]: treesize reduction 313, result has 11.1 percent of original size [2022-11-26 00:33:20,078 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 465 treesize of output 462 [2022-11-26 00:33:20,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:20,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:20,110 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 474 treesize of output 449 [2022-11-26 00:33:20,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:20,132 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:33:20,133 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 459 [2022-11-26 00:33:20,276 INFO L321 Elim1Store]: treesize reduction 406, result has 15.8 percent of original size [2022-11-26 00:33:20,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 478 treesize of output 503 [2022-11-26 00:33:20,400 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 15 treesize of output 11 [2022-11-26 00:33:20,407 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-11-26 00:33:20,414 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 17 [2022-11-26 00:33:20,423 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 15 treesize of output 11 [2022-11-26 00:33:20,430 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 23 treesize of output 1 [2022-11-26 00:33:20,890 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:33:21,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1908201220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:21,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:33:21,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 4, 4] total 17 [2022-11-26 00:33:21,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422174919] [2022-11-26 00:33:21,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:21,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-26 00:33:21,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:21,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-26 00:33:21,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2022-11-26 00:33:21,831 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-26 00:33:22,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:22,531 INFO L93 Difference]: Finished difference Result 38 states and 43 transitions. [2022-11-26 00:33:22,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:33:22,532 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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 11 [2022-11-26 00:33:22,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:22,533 INFO L225 Difference]: With dead ends: 38 [2022-11-26 00:33:22,533 INFO L226 Difference]: Without dead ends: 36 [2022-11-26 00:33:22,533 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-11-26 00:33:22,534 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:22,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 20 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:33:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-26 00:33:22,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 29. [2022-11-26 00:33:22,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.3076923076923077) internal successors, (34), 28 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) [2022-11-26 00:33:22,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2022-11-26 00:33:22,542 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 11 [2022-11-26 00:33:22,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:22,543 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2022-11-26 00:33:22,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 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) [2022-11-26 00:33:22,543 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2022-11-26 00:33:22,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-26 00:33:22,544 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:22,544 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:22,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:22,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:22,750 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:22,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:22,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1925927454, now seen corresponding path program 1 times [2022-11-26 00:33:22,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:22,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881663692] [2022-11-26 00:33:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:22,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:22,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:22,811 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:33:22,812 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:22,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881663692] [2022-11-26 00:33:22,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881663692] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:22,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737878185] [2022-11-26 00:33:22,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:22,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:22,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:22,814 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:22,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-26 00:33:22,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:22,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-26 00:33:22,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:22,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:33:22,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:22,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-26 00:33:22,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737878185] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:22,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1171509010] [2022-11-26 00:33:22,970 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-26 00:33:22,971 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:33:22,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:33:22,971 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:33:22,971 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:33:22,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,005 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:33:23,006 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:33:23,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-26 00:33:23,052 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 15 treesize of output 11 [2022-11-26 00:33:23,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,060 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:23,070 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 15 treesize of output 11 [2022-11-26 00:33:23,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,107 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-26 00:33:23,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 62 [2022-11-26 00:33:23,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,154 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-26 00:33:23,155 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 73 [2022-11-26 00:33:23,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2022-11-26 00:33:23,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,248 INFO L321 Elim1Store]: treesize reduction 78, result has 36.1 percent of original size [2022-11-26 00:33:23,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 74 [2022-11-26 00:33:23,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,331 INFO L321 Elim1Store]: treesize reduction 114, result has 34.5 percent of original size [2022-11-26 00:33:23,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 101 [2022-11-26 00:33:23,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,351 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 23 treesize of output 22 [2022-11-26 00:33:23,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,365 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:23,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:23,604 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-26 00:33:23,605 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 442 treesize of output 348 [2022-11-26 00:33:23,983 INFO L321 Elim1Store]: treesize reduction 493, result has 17.0 percent of original size [2022-11-26 00:33:23,983 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 8 select indices, 8 select index equivalence classes, 4 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 412 treesize of output 471 [2022-11-26 00:33:24,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:24,039 INFO L321 Elim1Store]: treesize reduction 37, result has 28.8 percent of original size [2022-11-26 00:33:24,039 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 393 treesize of output 404 [2022-11-26 00:33:24,163 INFO L321 Elim1Store]: treesize reduction 282, result has 11.6 percent of original size [2022-11-26 00:33:24,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 386 treesize of output 409 [2022-11-26 00:33:24,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:24,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:24,193 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 393 treesize of output 368 [2022-11-26 00:33:25,213 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 15 treesize of output 11 [2022-11-26 00:33:25,220 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 17 [2022-11-26 00:33:25,227 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-11-26 00:33:25,240 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 23 treesize of output 1 [2022-11-26 00:33:25,249 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 15 treesize of output 11 [2022-11-26 00:33:25,683 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:33:26,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1171509010] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:33:26,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:33:26,806 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [5, 4, 4] total 18 [2022-11-26 00:33:26,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964017551] [2022-11-26 00:33:26,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:33:26,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-26 00:33:26,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:26,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-26 00:33:26,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2022-11-26 00:33:26,808 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2022-11-26 00:33:27,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:27,936 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2022-11-26 00:33:27,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-26 00:33:27,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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 14 [2022-11-26 00:33:27,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:27,937 INFO L225 Difference]: With dead ends: 29 [2022-11-26 00:33:27,937 INFO L226 Difference]: Without dead ends: 17 [2022-11-26 00:33:27,937 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-11-26 00:33:27,938 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:27,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:33:27,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-26 00:33:27,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-26 00:33:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.0625) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-11-26 00:33:27,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-11-26 00:33:27,943 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2022-11-26 00:33:27,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:27,944 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-11-26 00:33:27,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 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) [2022-11-26 00:33:27,944 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-11-26 00:33:27,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:33:27,945 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:33:27,945 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 1, 1] [2022-11-26 00:33:27,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:28,151 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-26 00:33:28,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-11-26 00:33:28,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:33:28,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1949254911, now seen corresponding path program 2 times [2022-11-26 00:33:28,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:33:28,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194810617] [2022-11-26 00:33:28,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:33:28,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:33:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:33:28,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:33:28,369 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:33:28,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194810617] [2022-11-26 00:33:28,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194810617] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-26 00:33:28,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427366664] [2022-11-26 00:33:28,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-26 00:33:28,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-26 00:33:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:33:28,371 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-26 00:33:28,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-26 00:33:28,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-26 00:33:28,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-26 00:33:28,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-26 00:33:28,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:33:28,498 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:33:28,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:33:28,547 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-26 00:33:28,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427366664] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:33:28,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [22567635] [2022-11-26 00:33:28,549 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2022-11-26 00:33:28,549 INFO L166 IcfgInterpreter]: Building call graph [2022-11-26 00:33:28,549 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-26 00:33:28,549 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-26 00:33:28,549 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-26 00:33:28,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,573 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-26 00:33:28,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-26 00:33:28,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,602 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-26 00:33:28,602 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-26 00:33:28,642 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 15 treesize of output 11 [2022-11-26 00:33:28,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:28,665 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 15 treesize of output 11 [2022-11-26 00:33:28,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,706 INFO L321 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-11-26 00:33:28,707 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 62 [2022-11-26 00:33:28,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,753 INFO L321 Elim1Store]: treesize reduction 68, result has 34.0 percent of original size [2022-11-26 00:33:28,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 48 treesize of output 73 [2022-11-26 00:33:28,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 44 [2022-11-26 00:33:28,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,864 INFO L321 Elim1Store]: treesize reduction 78, result has 36.1 percent of original size [2022-11-26 00:33:28,864 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 74 [2022-11-26 00:33:28,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,933 INFO L321 Elim1Store]: treesize reduction 114, result has 34.5 percent of original size [2022-11-26 00:33:28,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 57 treesize of output 101 [2022-11-26 00:33:28,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,954 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 23 treesize of output 22 [2022-11-26 00:33:28,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:28,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 21 [2022-11-26 00:33:29,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:29,143 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:33:29,144 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 336 [2022-11-26 00:33:29,373 INFO L321 Elim1Store]: treesize reduction 382, result has 20.7 percent of original size [2022-11-26 00:33:29,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 478 treesize of output 527 [2022-11-26 00:33:29,453 INFO L321 Elim1Store]: treesize reduction 155, result has 3.1 percent of original size [2022-11-26 00:33:29,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 465 treesize of output 462 [2022-11-26 00:33:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:29,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 474 treesize of output 449 [2022-11-26 00:33:29,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-26 00:33:29,510 INFO L321 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-11-26 00:33:29,511 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 466 treesize of output 459 [2022-11-26 00:33:29,616 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 15 treesize of output 11 [2022-11-26 00:33:29,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 14 treesize of output 13 [2022-11-26 00:33:29,630 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 28 treesize of output 17 [2022-11-26 00:33:29,638 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 15 treesize of output 11 [2022-11-26 00:33:29,646 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 23 treesize of output 1 [2022-11-26 00:33:29,665 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-26 00:33:30,033 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '1214#(and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 1000000 |ULTIMATE.start_init_~size#1|) (< 2147483646 |ULTIMATE.start_init_#t~post1#1|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) (= |ULTIMATE.start_main_~flag~0#1| 0) (= 1000000 |ULTIMATE.start_init_#in~size#1|) (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_init_~i~0#1|) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) (= |#NULL.base| 0))' at error location [2022-11-26 00:33:30,033 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-26 00:33:30,033 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-26 00:33:30,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 14 [2022-11-26 00:33:30,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275372361] [2022-11-26 00:33:30,034 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-26 00:33:30,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-26 00:33:30,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:33:30,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-26 00:33:30,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2022-11-26 00:33:30,035 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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) [2022-11-26 00:33:30,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:33:30,235 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-26 00:33:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-26 00:33:30,235 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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 16 [2022-11-26 00:33:30,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:33:30,236 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:33:30,236 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:33:30,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=215, Invalid=655, Unknown=0, NotChecked=0, Total=870 [2022-11-26 00:33:30,237 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 14 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:33:30,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 0 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:33:30,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:33:30,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:33:30,239 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) [2022-11-26 00:33:30,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:33:30,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-26 00:33:30,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:33:30,239 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:33:30,240 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.0) internal successors, (30), 15 states have internal predecessors, (30), 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) [2022-11-26 00:33:30,240 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:33:30,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:33:30,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-11-26 00:33:30,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-11-26 00:33:30,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-11-26 00:33:30,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-11-26 00:33:30,242 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-11-26 00:33:30,243 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-11-26 00:33:30,251 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-26 00:33:30,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-26 00:33:30,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:33:31,300 INFO L899 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2022-11-26 00:33:31,300 INFO L899 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2022-11-26 00:33:31,301 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-26 00:33:31,301 INFO L895 garLoopResultBuilder]: At program point L35-5(lines 35 41) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_init_~size#1| 1000000)) (.cse1 (<= |ULTIMATE.start_init_~a#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse3 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|)) (.cse4 (<= |ULTIMATE.start_init_~i~0#1| 2147483647)) (.cse5 (<= |#NULL.offset| 0)) (.cse6 (<= 0 |ULTIMATE.start_init_#in~a#1.offset|)) (.cse7 (<= 1000000 |ULTIMATE.start_init_~size#1|)) (.cse8 (<= 1000000 |ULTIMATE.start_init_#in~size#1|)) (.cse9 (<= 0 |ULTIMATE.start_init_#in~a#1.base|)) (.cse10 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse11 (<= 0 |ULTIMATE.start_init_~a#1.base|)) (.cse12 (<= 0 |ULTIMATE.start_init_~a#1.offset|)) (.cse13 (<= |ULTIMATE.start_init_#in~size#1| 1000000)) (.cse14 (<= 0 |#NULL.offset|)) (.cse15 (<= 0 |#StackHeapBarrier|)) (.cse16 (<= 1000000 |ULTIMATE.start_init_~i~0#1|)) (.cse17 (<= |ULTIMATE.start_init_#in~a#1.offset| 0))) (or (and .cse0 .cse1 .cse2 (= |ULTIMATE.start_main_~i~1#1| 0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 (= |ULTIMATE.start_main_~flag~0#1| 0) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (= |#NULL.base| 0)) (and .cse0 .cse1 (<= 0 |#NULL.base|) .cse2 (<= |ULTIMATE.start_main_~flag~0#1| 1) .cse3 .cse4 (<= 0 |ULTIMATE.start_main_~flag~0#1|) .cse5 .cse6 .cse7 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse8 .cse9 .cse10 .cse11 (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |#NULL.base| 0) .cse12 .cse13 .cse14 .cse15 .cse16 .cse17))) [2022-11-26 00:33:31,301 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-26 00:33:31,301 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 26) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~flag~0#1| 0)) (.cse1 (= 1000000 |ULTIMATE.start_init_#in~size#1|)) (.cse2 (= |ULTIMATE.start_main_~#a~0#1.offset| 0)) (.cse3 (= |#NULL.offset| 0)) (.cse4 (= |#NULL.base| 0))) (or (and (<= |ULTIMATE.start_init_~size#1| 1000000) (<= |ULTIMATE.start_init_~a#1.offset| 0) (<= 0 |ULTIMATE.start_main_~#a~0#1.base|) (<= |ULTIMATE.start_init_~i~0#1| 2147483647) (<= 0 |ULTIMATE.start_init_#in~a#1.offset|) (<= 1000000 |ULTIMATE.start_init_~size#1|) (<= 0 |ULTIMATE.start_init_#in~a#1.base|) .cse0 .cse1 (<= 0 |ULTIMATE.start_init_~a#1.base|) (<= 0 |ULTIMATE.start_init_~a#1.offset|) .cse2 (<= 1 |ULTIMATE.start_init_~i~0#1|) .cse3 (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_init_#in~a#1.offset| 0) .cse4) (let ((.cse5 (select |#memory_int| 1))) (and (= |ULTIMATE.start_main_~#a~0#1.offset| |ULTIMATE.start_init_#in~a#1.offset|) (= |ULTIMATE.start_init_#in~a#1.offset| |ULTIMATE.start_init_~a#1.offset|) (= |ULTIMATE.start_init_~size#1| |ULTIMATE.start_init_#in~size#1|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#a~0#1.base|) (= 4000000 (select |#length| |ULTIMATE.start_main_~#a~0#1.base|)) (= |ULTIMATE.start_init_~i~0#1| 0) (= 2 (select |#length| 1)) (= |ULTIMATE.start_init_#in~a#1.base| |ULTIMATE.start_main_~#a~0#1.base|) (= |ULTIMATE.start_init_~a#1.base| |ULTIMATE.start_init_#in~a#1.base|) .cse0 (= (select |#valid| 1) 1) .cse1 .cse2 (= 15 (select |#length| 2)) (= (select |#valid| |ULTIMATE.start_main_~#a~0#1.base|) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse3 (= (select .cse5 0) 48) (= (select .cse5 1) 0) (< 0 |#StackHeapBarrier|) .cse4)))) [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 42) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point L42-3(line 42) no Hoare annotation was computed. [2022-11-26 00:33:31,302 INFO L899 garLoopResultBuilder]: For program point L42-4(line 42) no Hoare annotation was computed. [2022-11-26 00:33:31,303 INFO L895 garLoopResultBuilder]: At program point L42-5(lines 42 46) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_init_~size#1| 1000000)) (.cse1 (<= |ULTIMATE.start_init_~a#1.offset| 0)) (.cse2 (<= 0 |ULTIMATE.start_main_~#a~0#1.base|)) (.cse3 (<= |ULTIMATE.start_main_~flag~0#1| 1)) (.cse4 (<= |ULTIMATE.start_init_~i~0#1| 2147483647)) (.cse5 (<= 0 |ULTIMATE.start_main_~flag~0#1|)) (.cse6 (<= 0 |ULTIMATE.start_init_#in~a#1.offset|)) (.cse7 (<= 1000000 |ULTIMATE.start_init_~size#1|)) (.cse8 (<= 0 |ULTIMATE.start_init_#in~a#1.base|)) (.cse9 (<= 0 |ULTIMATE.start_init_~a#1.base|)) (.cse10 (<= 0 |ULTIMATE.start_init_~a#1.offset|)) (.cse11 (<= 0 |#StackHeapBarrier|)) (.cse12 (<= 1000000 |ULTIMATE.start_init_~i~0#1|)) (.cse13 (<= |ULTIMATE.start_init_#in~a#1.offset| 0))) (or (and .cse0 .cse1 (<= 0 |#NULL.base|) .cse2 .cse3 (<= 0 |ULTIMATE.start_main_~#a~0#1.offset|) .cse4 .cse5 (<= |#NULL.offset| 0) .cse6 .cse7 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (<= 1000000 |ULTIMATE.start_init_#in~size#1|) .cse8 (<= |ULTIMATE.start_main_~#a~0#1.offset| 0) .cse9 (<= 1 |ULTIMATE.start_main_~i~1#1|) (<= |#NULL.base| 0) .cse10 (<= |ULTIMATE.start_init_#in~size#1| 1000000) (<= 0 |#NULL.offset|) .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~i~1#1| 0) .cse4 .cse5 .cse6 .cse7 .cse8 (= 1000000 |ULTIMATE.start_init_#in~size#1|) .cse9 .cse10 (= |ULTIMATE.start_main_~#a~0#1.offset| 0) (= |#NULL.offset| 0) .cse11 .cse12 .cse13 (= |#NULL.base| 0)))) [2022-11-26 00:33:31,303 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-26 00:33:31,306 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:33:31,308 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:33:31,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:33:31 BoogieIcfgContainer [2022-11-26 00:33:31,339 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:33:31,339 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:33:31,339 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:33:31,340 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:33:31,340 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:33:09" (3/4) ... [2022-11-26 00:33:31,343 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:33:31,353 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2022-11-26 00:33:31,353 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-26 00:33:31,354 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-26 00:33:31,354 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:33:31,376 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && i <= 2147483647) && 0 <= a) && 1000000 <= size) && 0 <= a) && flag == 0) && 1000000 == \old(size)) && 0 <= a) && 0 <= a) && a == 0) && 1 <= i) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && a <= 0) && #NULL == 0) || (((((((((((((((((((((a == a && a == a) && size == \old(size)) && unknown-#StackHeapBarrier-unknown < a) && 4000000 == unknown-#length-unknown[a]) && i == 0) && 2 == unknown-#length-unknown[1]) && a == a) && a == a) && flag == 0) && \valid[1] == 1) && 1000000 == \old(size)) && a == 0) && 15 == unknown-#length-unknown[2]) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) [2022-11-26 00:33:31,377 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && i == 0) && 0 <= a) && i <= 2147483647) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && 1000000 <= \old(size)) && 0 <= a) && flag == 0) && a <= 0) && 0 <= a) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) && #NULL == 0) || (((((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= #NULL) && 0 <= a) && flag <= 1) && 0 <= a) && i <= 2147483647) && 0 <= flag) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && i <= 2147483647) && 1000000 <= \old(size)) && 0 <= a) && a <= 0) && 0 <= a) && 1 <= i) && #NULL <= 0) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) [2022-11-26 00:33:31,377 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= #NULL) && 0 <= a) && flag <= 1) && 0 <= a) && i <= 2147483647) && 0 <= flag) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && i <= 2147483647) && 1000000 <= \old(size)) && 0 <= a) && a <= 0) && 0 <= a) && 1 <= i) && #NULL <= 0) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) || ((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && flag <= 1) && i == 0) && i <= 2147483647) && 0 <= flag) && 0 <= a) && 1000000 <= size) && 0 <= a) && 1000000 == \old(size)) && 0 <= a) && 0 <= a) && a == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) && #NULL == 0) [2022-11-26 00:33:31,385 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:33:31,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:33:31,386 INFO L158 Benchmark]: Toolchain (without parser) took 22726.27ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 104.5MB in the beginning and 240.4MB in the end (delta: -135.9MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,386 INFO L158 Benchmark]: CDTParser took 0.73ms. Allocated memory is still 146.8MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:33:31,386 INFO L158 Benchmark]: CACSL2BoogieTranslator took 238.21ms. Allocated memory is still 146.8MB. Free memory was 104.1MB in the beginning and 93.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,387 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.67ms. Allocated memory is still 146.8MB. Free memory was 93.6MB in the beginning and 91.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,387 INFO L158 Benchmark]: Boogie Preprocessor took 26.16ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 90.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:33:31,387 INFO L158 Benchmark]: RCFGBuilder took 419.48ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 74.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,388 INFO L158 Benchmark]: TraceAbstraction took 21954.73ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 74.4MB in the beginning and 242.5MB in the end (delta: -168.1MB). Peak memory consumption was 144.6MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,388 INFO L158 Benchmark]: Witness Printer took 45.91ms. Allocated memory is still 308.3MB. Free memory was 242.5MB in the beginning and 240.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:33:31,389 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73ms. Allocated memory is still 146.8MB. Free memory is still 85.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 238.21ms. Allocated memory is still 146.8MB. Free memory was 104.1MB in the beginning and 93.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.67ms. Allocated memory is still 146.8MB. Free memory was 93.6MB in the beginning and 91.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.16ms. Allocated memory is still 146.8MB. Free memory was 91.9MB in the beginning and 90.8MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 419.48ms. Allocated memory is still 146.8MB. Free memory was 90.8MB in the beginning and 74.8MB in the end (delta: 16.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 21954.73ms. Allocated memory was 146.8MB in the beginning and 308.3MB in the end (delta: 161.5MB). Free memory was 74.4MB in the beginning and 242.5MB in the end (delta: -168.1MB). Peak memory consumption was 144.6MB. Max. memory is 16.1GB. * Witness Printer took 45.91ms. Allocated memory is still 308.3MB. Free memory was 242.5MB in the beginning and 240.4MB 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 - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: 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 1 procedures, 17 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 21.8s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 167 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 167 mSDsluCounter, 247 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 176 mSDsCounter, 16 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 416 IncrementalHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 16 mSolverCounterUnsat, 71 mSDtfsCounter, 416 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 238 GetRequests, 123 SyntacticMatches, 1 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=4, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 89 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 12 NumberOfFragments, 412 HoareAnnotationTreeSize, 3 FomulaSimplifications, 361 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1270 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 153 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 20 NumberOfNonLiveVariables, 581 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 21 InterpolantComputations, 5 PerfectInterpolantSequences, 70/136 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: OVERALL_TIME: 6.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 33, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 85, TOOLS_POST_TIME: 5.9s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 85, TOOLS_QUANTIFIERELIM_TIME: 5.8s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.6s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 158, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 14, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 10, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 17, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 33, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 5.2s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 5.2s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 17, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 601, DAG_COMPRESSION_RETAINED_NODES: 110, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: ((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && i <= 2147483647) && 0 <= a) && 1000000 <= size) && 0 <= a) && flag == 0) && 1000000 == \old(size)) && 0 <= a) && 0 <= a) && a == 0) && 1 <= i) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && a <= 0) && #NULL == 0) || (((((((((((((((((((((a == a && a == a) && size == \old(size)) && unknown-#StackHeapBarrier-unknown < a) && 4000000 == unknown-#length-unknown[a]) && i == 0) && 2 == unknown-#length-unknown[1]) && a == a) && a == a) && flag == 0) && \valid[1] == 1) && 1000000 == \old(size)) && a == 0) && 15 == unknown-#length-unknown[2]) && \valid[a] == 1) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && #NULL == 0) - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= #NULL) && 0 <= a) && flag <= 1) && 0 <= a) && i <= 2147483647) && 0 <= flag) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && i <= 2147483647) && 1000000 <= \old(size)) && 0 <= a) && a <= 0) && 0 <= a) && 1 <= i) && #NULL <= 0) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) || ((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && flag <= 1) && i == 0) && i <= 2147483647) && 0 <= flag) && 0 <= a) && 1000000 <= size) && 0 <= a) && 1000000 == \old(size)) && 0 <= a) && 0 <= a) && a == 0) && #NULL == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) && #NULL == 0) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: ((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= a) && i == 0) && 0 <= a) && i <= 2147483647) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && 1000000 <= \old(size)) && 0 <= a) && flag == 0) && a <= 0) && 0 <= a) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) && #NULL == 0) || (((((((((((((((((((((((size <= 1000000 && a <= 0) && 0 <= #NULL) && 0 <= a) && flag <= 1) && 0 <= a) && i <= 2147483647) && 0 <= flag) && #NULL <= 0) && 0 <= a) && 1000000 <= size) && i <= 2147483647) && 1000000 <= \old(size)) && 0 <= a) && a <= 0) && 0 <= a) && 1 <= i) && #NULL <= 0) && 0 <= a) && \old(size) <= 1000000) && 0 <= #NULL) && 0 <= unknown-#StackHeapBarrier-unknown) && 1000000 <= i) && a <= 0) RESULT: Ultimate proved your program to be correct! [2022-11-26 00:33:31,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70714f13-210e-4f91-9346-0b3ef14f8516/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