./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-crafted/bor4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-crafted/bor4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 00:11:45,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:11:45,884 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:11:45,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:11:45,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:11:45,906 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:11:45,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:11:45,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:11:45,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:11:45,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:11:45,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:11:45,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:11:45,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:11:45,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:11:45,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:11:45,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:11:45,925 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:11:45,926 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:11:45,931 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:11:45,936 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:11:45,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:11:45,942 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:11:45,943 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:11:45,944 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:11:45,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:11:45,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:11:45,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:11:45,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:11:45,950 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:11:45,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:11:45,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:11:45,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:11:45,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:11:45,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:11:45,965 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:11:45,967 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:11:45,968 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:11:45,968 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:11:45,968 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:11:45,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:11:45,973 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:11:45,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-22 00:11:46,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:11:46,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:11:46,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:11:46,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:11:46,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:11:46,003 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:11:46,003 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:11:46,004 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:11:46,004 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:11:46,004 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:11:46,004 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:11:46,005 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:11:46,005 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:11:46,005 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:11:46,005 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:11:46,006 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:11:46,006 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:11:46,006 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:11:46,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:11:46,007 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:11:46,007 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-22 00:11:46,008 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:11:46,008 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:11:46,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:11:46,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:11:46,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:11:46,009 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:11:46,009 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-22 00:11:46,009 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:11:46,009 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:11:46,010 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:11:46,010 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:11:46,010 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:11:46,010 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:11:46,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:11:46,011 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:11:46,011 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:11:46,011 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:11:46,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:11:46,012 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:11:46,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:11:46,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:11:46,013 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:11:46,013 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_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 530f2a23e46989c01d5f933930e2ae4d9f59000418a38b175b5a857a453825fc [2022-11-22 00:11:46,310 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:11:46,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:11:46,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:11:46,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:11:46,350 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:11:46,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/array-crafted/bor4.i [2022-11-22 00:11:49,395 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:11:49,589 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:11:49,590 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/sv-benchmarks/c/array-crafted/bor4.i [2022-11-22 00:11:49,596 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/data/a6b469086/56fbc28fca1d46a5943c2d5ac9ef2b2f/FLAGdb98e634a [2022-11-22 00:11:49,610 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/data/a6b469086/56fbc28fca1d46a5943c2d5ac9ef2b2f [2022-11-22 00:11:49,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:11:49,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:11:49,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:11:49,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:11:49,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:11:49,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,621 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e635b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49, skipping insertion in model container [2022-11-22 00:11:49,622 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:11:49,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:11:49,841 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_03a617de-deef-479a-bf36-67b6ad26f118/sv-benchmarks/c/array-crafted/bor4.i[1303,1316] [2022-11-22 00:11:49,842 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:11:49,851 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:11:49,873 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_03a617de-deef-479a-bf36-67b6ad26f118/sv-benchmarks/c/array-crafted/bor4.i[1303,1316] [2022-11-22 00:11:49,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:11:49,887 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:11:49,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49 WrapperNode [2022-11-22 00:11:49,888 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:11:49,889 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:11:49,889 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:11:49,889 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:11:49,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,921 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,955 INFO L138 Inliner]: procedures = 16, calls = 30, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 80 [2022-11-22 00:11:49,956 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:11:49,957 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:11:49,957 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:11:49,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:11:49,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,993 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:49,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:50,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:11:50,001 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:11:50,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:11:50,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:11:50,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (1/1) ... [2022-11-22 00:11:50,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:11:50,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:50,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:11:50,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:11:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:11:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure bor [2022-11-22 00:11:50,102 INFO L138 BoogieDeclarations]: Found implementation of procedure bor [2022-11-22 00:11:50,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:11:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:11:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-22 00:11:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:11:50,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:11:50,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-22 00:11:50,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:11:50,205 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:11:50,207 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:11:50,416 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:11:50,560 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:11:50,560 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-22 00:11:50,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:50 BoogieIcfgContainer [2022-11-22 00:11:50,563 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:11:50,565 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:11:50,565 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:11:50,568 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:11:50,569 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:11:49" (1/3) ... [2022-11-22 00:11:50,569 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cb59b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:11:50, skipping insertion in model container [2022-11-22 00:11:50,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:11:49" (2/3) ... [2022-11-22 00:11:50,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60cb59b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:11:50, skipping insertion in model container [2022-11-22 00:11:50,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:50" (3/3) ... [2022-11-22 00:11:50,571 INFO L112 eAbstractionObserver]: Analyzing ICFG bor4.i [2022-11-22 00:11:50,602 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:11:50,602 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-22 00:11:50,653 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:11:50,660 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;@5667db25, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:11:50,660 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-22 00:11:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 00:11:50,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-22 00:11:50,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:50,673 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-22 00:11:50,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:50,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:50,681 INFO L85 PathProgramCache]: Analyzing trace with hash 126990, now seen corresponding path program 1 times [2022-11-22 00:11:50,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:50,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138553263] [2022-11-22 00:11:50,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:50,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:51,029 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:51,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138553263] [2022-11-22 00:11:51,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138553263] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:51,030 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:51,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:51,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765544040] [2022-11-22 00:11:51,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:51,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-22 00:11:51,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:51,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-22 00:11:51,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-22 00:11:51,066 INFO L87 Difference]: Start difference. First operand has 29 states, 16 states have (on average 1.6875) internal successors, (27), 24 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) 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) [2022-11-22 00:11:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:51,142 INFO L93 Difference]: Finished difference Result 57 states and 65 transitions. [2022-11-22 00:11:51,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-22 00:11:51,145 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 [2022-11-22 00:11:51,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:51,152 INFO L225 Difference]: With dead ends: 57 [2022-11-22 00:11:51,152 INFO L226 Difference]: Without dead ends: 30 [2022-11-22 00:11:51,155 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 [2022-11-22 00:11:51,158 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 3 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:51,160 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 68 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:11:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-22 00:11:51,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-22 00:11:51,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.6111111111111112) internal successors, (29), 26 states have internal predecessors, (29), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:51,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-11-22 00:11:51,197 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 3 [2022-11-22 00:11:51,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:51,198 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-11-22 00:11:51,198 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) [2022-11-22 00:11:51,198 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-11-22 00:11:51,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:11:51,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:51,199 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2022-11-22 00:11:51,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:11:51,199 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:51,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:51,200 INFO L85 PathProgramCache]: Analyzing trace with hash -511729266, now seen corresponding path program 1 times [2022-11-22 00:11:51,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:51,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150684621] [2022-11-22 00:11:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:51,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:51,270 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-22 00:11:51,270 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:51,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150684621] [2022-11-22 00:11:51,270 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150684621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:51,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:11:51,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:11:51,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008157359] [2022-11-22 00:11:51,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:51,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:51,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:51,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:51,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:11:51,273 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:51,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:51,305 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2022-11-22 00:11:51,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:51,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-22 00:11:51,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:51,307 INFO L225 Difference]: With dead ends: 30 [2022-11-22 00:11:51,307 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 00:11:51,308 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 [2022-11-22 00:11:51,309 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 2 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:51,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 40 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:11:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 00:11:51,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 00:11:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:51,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-22 00:11:51,315 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 6 [2022-11-22 00:11:51,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:51,316 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-22 00:11:51,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:51,316 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-22 00:11:51,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-22 00:11:51,317 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:51,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1] [2022-11-22 00:11:51,317 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:11:51,317 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:51,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:51,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1316262016, now seen corresponding path program 1 times [2022-11-22 00:11:51,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:51,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144228452] [2022-11-22 00:11:51,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:51,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:51,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:51,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:51,528 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:51,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144228452] [2022-11-22 00:11:51,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144228452] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096587053] [2022-11-22 00:11:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:51,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:51,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:51,533 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:51,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-22 00:11:51,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:51,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-22 00:11:51,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:51,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:11:51,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096587053] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:51,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:11:51,706 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-11-22 00:11:51,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115160524] [2022-11-22 00:11:51,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:51,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-22 00:11:51,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:51,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-22 00:11:51,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-22 00:11:51,709 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:51,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:51,761 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-22 00:11:51,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-22 00:11:51,762 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 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 [2022-11-22 00:11:51,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:51,763 INFO L225 Difference]: With dead ends: 29 [2022-11-22 00:11:51,763 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 00:11:51,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-22 00:11:51,765 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:51,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 56 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:11:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 00:11:51,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2022-11-22 00:11:51,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 16 states have (on average 1.5625) internal successors, (25), 22 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:51,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2022-11-22 00:11:51,774 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 7 [2022-11-22 00:11:51,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:51,774 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2022-11-22 00:11:51,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:51,774 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2022-11-22 00:11:51,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-22 00:11:51,775 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:51,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:51,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-22 00:11:51,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:51,976 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:51,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:51,977 INFO L85 PathProgramCache]: Analyzing trace with hash -2075203715, now seen corresponding path program 1 times [2022-11-22 00:11:51,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:51,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754062934] [2022-11-22 00:11:51,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:51,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:52,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:52,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:52,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754062934] [2022-11-22 00:11:52,117 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754062934] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:52,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256179044] [2022-11-22 00:11:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:52,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:52,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:52,119 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:52,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-22 00:11:52,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:52,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:11:52,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:52,224 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:52,224 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:11:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:11:52,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256179044] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:11:52,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [844860748] [2022-11-22 00:11:52,274 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-22 00:11:52,274 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:11:52,278 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:11:52,301 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:11:52,301 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:11:52,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,491 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-22 00:11:52,492 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 [2022-11-22 00:11:52,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,530 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:11:52,531 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 [2022-11-22 00:11:52,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,587 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 00:11:52,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,695 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-22 00:11:52,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:11:52,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:52,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:11:53,004 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-22 00:11:53,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 27 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 319 treesize of output 300 [2022-11-22 00:11:53,241 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 [2022-11-22 00:11:53,315 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 12 for LOIs [2022-11-22 00:11:53,357 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:11:54,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [844860748] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:54,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:11:54,022 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4, 4, 4] total 16 [2022-11-22 00:11:54,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066379071] [2022-11-22 00:11:54,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:54,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-22 00:11:54,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:54,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-22 00:11:54,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2022-11-22 00:11:54,033 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:54,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:54,423 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2022-11-22 00:11:54,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:11:54,424 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-22 00:11:54,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:54,425 INFO L225 Difference]: With dead ends: 49 [2022-11-22 00:11:54,425 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 00:11:54,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:11:54,427 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:54,428 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 37 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:54,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 00:11:54,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 00:11:54,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 25 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:54,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2022-11-22 00:11:54,437 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 9 [2022-11-22 00:11:54,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:54,437 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2022-11-22 00:11:54,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:54,438 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2022-11-22 00:11:54,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-22 00:11:54,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:54,438 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:54,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-22 00:11:54,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-11-22 00:11:54,644 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:54,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:54,644 INFO L85 PathProgramCache]: Analyzing trace with hash -634556824, now seen corresponding path program 1 times [2022-11-22 00:11:54,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:54,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454457942] [2022-11-22 00:11:54,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:54,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:54,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:11:54,748 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:54,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454457942] [2022-11-22 00:11:54,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454457942] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:54,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915979967] [2022-11-22 00:11:54,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:54,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:54,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:54,750 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:54,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-22 00:11:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:54,831 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:11:54,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:11:54,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:11:54,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-22 00:11:54,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915979967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:11:54,896 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [209435392] [2022-11-22 00:11:54,899 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-11-22 00:11:54,900 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:11:54,900 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:11:54,900 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:11:54,901 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:11:54,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:54,947 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:11:54,947 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 [2022-11-22 00:11:54,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:54,964 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 [2022-11-22 00:11:54,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,003 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 00:11:55,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-22 00:11:55,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,286 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:11:55,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:55,317 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 00:11:55,317 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 335 treesize of output 297 [2022-11-22 00:11:55,393 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 [2022-11-22 00:11:55,427 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 12 for LOIs [2022-11-22 00:11:56,358 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:11:57,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [209435392] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:57,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:11:57,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 4, 4] total 17 [2022-11-22 00:11:57,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137769550] [2022-11-22 00:11:57,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:57,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-22 00:11:57,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:57,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-22 00:11:57,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2022-11-22 00:11:57,358 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:57,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:57,676 INFO L93 Difference]: Finished difference Result 29 states and 33 transitions. [2022-11-22 00:11:57,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-22 00:11:57,678 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-22 00:11:57,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:57,679 INFO L225 Difference]: With dead ends: 29 [2022-11-22 00:11:57,679 INFO L226 Difference]: Without dead ends: 26 [2022-11-22 00:11:57,679 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2022-11-22 00:11:57,680 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:57,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 51 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-22 00:11:57,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-11-22 00:11:57,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-11-22 00:11:57,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:57,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-11-22 00:11:57,688 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 12 [2022-11-22 00:11:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:57,688 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-11-22 00:11:57,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-22 00:11:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-11-22 00:11:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-22 00:11:57,690 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:57,690 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:57,699 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-22 00:11:57,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:57,896 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:57,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1372613680, now seen corresponding path program 1 times [2022-11-22 00:11:57,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:57,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259192826] [2022-11-22 00:11:57,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:57,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:58,053 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 00:11:58,053 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:58,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259192826] [2022-11-22 00:11:58,053 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259192826] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:58,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989190077] [2022-11-22 00:11:58,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:58,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:58,055 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:58,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-22 00:11:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:58,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:11:58,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:58,174 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:11:58,174 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:11:58,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989190077] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:58,174 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:11:58,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 00:11:58,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644816359] [2022-11-22 00:11:58,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:58,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:58,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:58,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:58,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:11:58,177 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:11:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:58,205 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-11-22 00:11:58,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:58,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2022-11-22 00:11:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:58,208 INFO L225 Difference]: With dead ends: 32 [2022-11-22 00:11:58,209 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 00:11:58,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:11:58,212 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:58,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 29 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:11:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 00:11:58,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 26. [2022-11-22 00:11:58,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 22 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2022-11-22 00:11:58,231 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 23 [2022-11-22 00:11:58,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:58,232 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2022-11-22 00:11:58,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:11:58,232 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2022-11-22 00:11:58,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-22 00:11:58,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:58,234 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:58,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-22 00:11:58,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:58,440 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:58,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:58,440 INFO L85 PathProgramCache]: Analyzing trace with hash -398648783, now seen corresponding path program 1 times [2022-11-22 00:11:58,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:58,441 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917694777] [2022-11-22 00:11:58,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:58,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:58,525 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 00:11:58,525 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:58,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917694777] [2022-11-22 00:11:58,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917694777] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:58,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966109196] [2022-11-22 00:11:58,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:58,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:58,531 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:58,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-22 00:11:58,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:58,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:11:58,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-22 00:11:58,615 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:11:58,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966109196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:11:58,616 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:11:58,616 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 00:11:58,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527881138] [2022-11-22 00:11:58,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:11:58,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:11:58,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:11:58,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:11:58,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:11:58,617 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:11:58,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:11:58,650 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2022-11-22 00:11:58,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:11:58,651 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2022-11-22 00:11:58,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:11:58,652 INFO L225 Difference]: With dead ends: 32 [2022-11-22 00:11:58,652 INFO L226 Difference]: Without dead ends: 31 [2022-11-22 00:11:58,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:11:58,653 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 4 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:11:58,653 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:11:58,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-22 00:11:58,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2022-11-22 00:11:58,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.3) internal successors, (26), 23 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:11:58,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2022-11-22 00:11:58,660 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 24 [2022-11-22 00:11:58,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:11:58,660 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2022-11-22 00:11:58,661 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:11:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2022-11-22 00:11:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-22 00:11:58,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:11:58,662 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:11:58,672 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-22 00:11:58,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:58,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:11:58,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:11:58,873 INFO L85 PathProgramCache]: Analyzing trace with hash 526790646, now seen corresponding path program 1 times [2022-11-22 00:11:58,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:11:58,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120525290] [2022-11-22 00:11:58,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:11:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 00:11:58,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:11:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120525290] [2022-11-22 00:11:58,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120525290] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:11:58,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959155571] [2022-11-22 00:11:58,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:11:58,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:11:58,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:11:58,955 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:11:58,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-22 00:11:59,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:11:59,031 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:11:59,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:11:59,050 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 00:11:59,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:11:59,085 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-22 00:11:59,085 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959155571] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:11:59,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [334052199] [2022-11-22 00:11:59,088 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2022-11-22 00:11:59,088 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:11:59,088 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:11:59,088 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:11:59,089 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:11:59,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,122 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:11:59,122 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 [2022-11-22 00:11:59,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,134 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 [2022-11-22 00:11:59,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,158 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 00:11:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 122 [2022-11-22 00:11:59,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,382 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:11:59,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:11:59,389 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:11:59,418 INFO L321 Elim1Store]: treesize reduction 72, result has 24.2 percent of original size [2022-11-22 00:11:59,419 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 27 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 319 treesize of output 300 [2022-11-22 00:11:59,531 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 [2022-11-22 00:12:00,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:00,024 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 00:12:00,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:00,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:12:00,143 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-22 00:12:00,168 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 12 for LOIs [2022-11-22 00:12:00,772 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:12:02,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [334052199] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:12:02,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:12:02,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [5, 4, 5] total 24 [2022-11-22 00:12:02,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768682099] [2022-11-22 00:12:02,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:12:02,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-11-22 00:12:02,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:12:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-11-22 00:12:02,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=473, Unknown=0, NotChecked=0, Total=552 [2022-11-22 00:12:02,230 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:02,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:12:02,654 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-11-22 00:12:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 00:12:02,656 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2022-11-22 00:12:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:12:02,656 INFO L225 Difference]: With dead ends: 31 [2022-11-22 00:12:02,657 INFO L226 Difference]: Without dead ends: 29 [2022-11-22 00:12:02,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2022-11-22 00:12:02,658 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 51 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:12:02,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 36 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:12:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-22 00:12:02,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-22 00:12:02,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 22 states have (on average 1.2727272727272727) internal successors, (28), 25 states have internal predecessors, (28), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:02,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-11-22 00:12:02,670 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 25 [2022-11-22 00:12:02,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:12:02,671 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-11-22 00:12:02,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 12 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:02,671 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-11-22 00:12:02,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-22 00:12:02,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:02,672 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:12:02,677 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:02,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-22 00:12:02,875 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:12:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -190262637, now seen corresponding path program 1 times [2022-11-22 00:12:02,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:12:02,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219826604] [2022-11-22 00:12:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:02,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:12:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 00:12:02,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:12:02,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219826604] [2022-11-22 00:12:02,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219826604] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:12:02,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203642404] [2022-11-22 00:12:02,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:02,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:12:02,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:12:02,966 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:12:02,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-22 00:12:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:03,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 152 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-22 00:12:03,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:03,051 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 00:12:03,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 00:12:03,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203642404] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:12:03,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-22 00:12:03,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-11-22 00:12:03,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280416201] [2022-11-22 00:12:03,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:12:03,052 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:12:03,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:12:03,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:12:03,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:12:03,053 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:12:03,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:12:03,078 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-11-22 00:12:03,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:12:03,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-22 00:12:03,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:12:03,079 INFO L225 Difference]: With dead ends: 29 [2022-11-22 00:12:03,079 INFO L226 Difference]: Without dead ends: 28 [2022-11-22 00:12:03,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-22 00:12:03,080 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 6 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:12:03,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 25 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:12:03,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-11-22 00:12:03,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-11-22 00:12:03,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:03,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-11-22 00:12:03,087 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 28 [2022-11-22 00:12:03,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:12:03,087 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-11-22 00:12:03,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-22 00:12:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-11-22 00:12:03,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-11-22 00:12:03,088 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:12:03,088 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:12:03,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:03,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-22 00:12:03,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-22 00:12:03,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:12:03,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1603174354, now seen corresponding path program 1 times [2022-11-22 00:12:03,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:12:03,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089684226] [2022-11-22 00:12:03,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:03,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:12:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:03,380 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 00:12:03,380 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:12:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089684226] [2022-11-22 00:12:03,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089684226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-22 00:12:03,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580313098] [2022-11-22 00:12:03,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:12:03,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-22 00:12:03,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:12:03,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-22 00:12:03,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-22 00:12:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:12:03,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-22 00:12:03,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 00:12:03,480 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 00:12:03,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-22 00:12:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-22 00:12:03,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580313098] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-22 00:12:03,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [632696891] [2022-11-22 00:12:03,539 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2022-11-22 00:12:03,540 INFO L166 IcfgInterpreter]: Building call graph [2022-11-22 00:12:03,540 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-22 00:12:03,540 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-22 00:12:03,540 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-22 00:12:03,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,581 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-22 00:12:03,581 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 [2022-11-22 00:12:03,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,592 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 [2022-11-22 00:12:03,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,619 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 24 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 102 [2022-11-22 00:12:03,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,662 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 25 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 117 [2022-11-22 00:12:03,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:12:03,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:03,836 INFO L321 Elim1Store]: treesize reduction 107, result has 6.1 percent of original size [2022-11-22 00:12:03,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 33 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 20 case distinctions, treesize of input 335 treesize of output 297 [2022-11-22 00:12:03,892 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 [2022-11-22 00:12:04,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:04,675 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 20 [2022-11-22 00:12:04,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:04,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-22 00:12:04,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 27 [2022-11-22 00:12:04,781 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 0 case distinctions, treesize of input 45 treesize of output 39 [2022-11-22 00:12:04,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:04,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:04,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-22 00:12:04,856 INFO L321 Elim1Store]: treesize reduction 47, result has 35.6 percent of original size [2022-11-22 00:12:04,857 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 80 treesize of output 89 [2022-11-22 00:12:04,912 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 24 treesize of output 24 [2022-11-22 00:12:04,992 INFO L197 IcfgInterpreter]: Interpreting procedure bor with input of size 12 for LOIs [2022-11-22 00:12:05,559 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-22 00:12:09,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [632696891] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:12:09,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-11-22 00:12:09,389 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [5, 4, 5] total 26 [2022-11-22 00:12:09,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841223396] [2022-11-22 00:12:09,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:12:09,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-22 00:12:09,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:12:09,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-22 00:12:09,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2022-11-22 00:12:09,390 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:09,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:12:09,816 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2022-11-22 00:12:09,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-22 00:12:09,816 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-11-22 00:12:09,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:12:09,817 INFO L225 Difference]: With dead ends: 28 [2022-11-22 00:12:09,817 INFO L226 Difference]: Without dead ends: 0 [2022-11-22 00:12:09,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2022-11-22 00:12:09,818 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-22 00:12:09,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-22 00:12:09,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-22 00:12:09,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-22 00:12:09,819 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) [2022-11-22 00:12:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-22 00:12:09,820 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-11-22 00:12:09,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:12:09,820 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-22 00:12:09,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 14 states have internal predecessors, (18), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-22 00:12:09,820 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-22 00:12:09,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-22 00:12:09,822 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 8 remaining) [2022-11-22 00:12:09,823 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 8 remaining) [2022-11-22 00:12:09,831 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-22 00:12:10,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-22 00:12:10,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-22 00:12:12,593 INFO L899 garLoopResultBuilder]: For program point L23-3(line 23) no Hoare annotation was computed. [2022-11-22 00:12:12,593 INFO L899 garLoopResultBuilder]: For program point borErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:12:12,593 INFO L899 garLoopResultBuilder]: For program point L23-4(line 23) no Hoare annotation was computed. [2022-11-22 00:12:12,594 INFO L895 garLoopResultBuilder]: At program point L23-5(lines 23 25) the Hoare annotation is: (or (not (= |#NULL.offset| 0)) (and (<= 0 bor_~x.base) (<= 0 bor_~x.offset) (<= bor_~x.offset 0) (<= 2 bor_~i~0)) (not (= |#NULL.base| 0)) (and (= |bor_#in~x.base| bor_~x.base) (= bor_~x.offset |bor_#in~x.offset|) (= bor_~res~0 (select (select |#memory_int| bor_~x.base) bor_~x.offset)) (= 1 bor_~i~0)) (not (<= 0 |bor_#in~x.base|)) (not (= |bor_#in~x.offset| 0)) (not (<= 0 |#StackHeapBarrier|))) [2022-11-22 00:12:12,594 INFO L899 garLoopResultBuilder]: For program point borErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2022-11-22 00:12:12,594 INFO L902 garLoopResultBuilder]: At program point borENTRY(lines 18 27) the Hoare annotation is: true [2022-11-22 00:12:12,594 INFO L899 garLoopResultBuilder]: For program point borEXIT(lines 18 27) no Hoare annotation was computed. [2022-11-22 00:12:12,594 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 00:12:12,594 INFO L895 garLoopResultBuilder]: At program point L44(line 44) the Hoare annotation is: (and (exists ((v_bor_~res~0_BEFORE_RETURN_6 Int)) (= |ULTIMATE.start_main_~ret~0#1| (let ((.cse0 (mod v_bor_~res~0_BEFORE_RETURN_6 4294967296))) (ite (<= .cse0 2147483647) .cse0 (+ (- 4294967296) .cse0))))) (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) (+ 4 |ULTIMATE.start_main_~#x~0#1.offset|)) |ULTIMATE.start_main_~temp~0#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point L37-3(line 37) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point L37-4(line 37) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-22 00:12:12,595 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-22 00:12:12,596 INFO L895 garLoopResultBuilder]: At program point L37-5(lines 37 39) the Hoare annotation is: (let ((.cse3 (<= 1 |ULTIMATE.start_main_~i~1#1|))) (let ((.cse0 (let ((.cse4 (<= 0 |#NULL.base|)) (.cse5 (<= 0 |ULTIMATE.start_main_~#x~0#1.offset|)) (.cse6 (<= |#NULL.offset| 0)) (.cse7 (<= |#NULL.base| 0)) (.cse8 (<= 0 |#NULL.offset|)) (.cse9 (<= |ULTIMATE.start_main_~#x~0#1.offset| 0))) (or (and .cse4 .cse5 .cse6 (<= |ULTIMATE.start_main_~i~1#1| 2147483647) .cse3 .cse7 (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) .cse8 .cse9 (<= 0 |#StackHeapBarrier|)) (and .cse4 (<= 0 |ULTIMATE.start_main_~i~1#1|) .cse5 .cse6 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse7 .cse8 .cse9))))) (or (let ((.cse2 (select |#memory_int| 1)) (.cse1 (select |#memory_int| 2))) (and (= 7 (select |#length| 2)) .cse0 (= 114 (select .cse1 2)) (= (select .cse1 5) 99) (= 2 (select |#length| 1)) (= 111 (select .cse1 1)) (= (select |#valid| |ULTIMATE.start_main_~#x~0#1.base|) 1) (= (select .cse1 4) 46) (= 52 (select .cse1 3)) (= (select |#valid| 1) 1) (= (select .cse1 6) 0) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= (select .cse2 0) 48) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#x~0#1.base|) (= (select |#length| |ULTIMATE.start_main_~#x~0#1.base|) 400000) (= (select .cse2 1) 0) (= 98 (select .cse1 0)) (< 0 |#StackHeapBarrier|))) (and .cse0 .cse3)))) [2022-11-22 00:12:12,596 INFO L895 garLoopResultBuilder]: At program point L37-6(lines 37 39) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-22 00:12:12,596 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2022-11-22 00:12:12,597 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0)) [2022-11-22 00:12:12,597 INFO L902 garLoopResultBuilder]: At program point L50-1(line 50) the Hoare annotation is: true [2022-11-22 00:12:12,597 INFO L899 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2022-11-22 00:12:12,597 INFO L899 garLoopResultBuilder]: For program point L46-4(line 46) no Hoare annotation was computed. [2022-11-22 00:12:12,597 INFO L895 garLoopResultBuilder]: At program point L46-5(lines 46 48) the Hoare annotation is: (and (<= |ULTIMATE.start_main_~i~1#1| 2147483647) (= |ULTIMATE.start_main_~#x~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#x~0#1.base|) (<= 0 (+ |ULTIMATE.start_main_~ret~0#1| 2147483648)) (<= 100000 |ULTIMATE.start_main_~i~1#1|) (<= |ULTIMATE.start_main_~ret~0#1| 2147483647) (<= 0 |#StackHeapBarrier|) (let ((.cse0 (<= |ULTIMATE.start_main_~ret2~0#1| 2147483647)) (.cse1 (<= 0 (+ |ULTIMATE.start_main_~ret2~0#1| 2147483648)))) (or (and .cse0 (= |ULTIMATE.start_main_~i~2#1| 0) .cse1 (= (select (select |#memory_int| |ULTIMATE.start_main_~#x~0#1.base|) |ULTIMATE.start_main_~#x~0#1.offset|) |ULTIMATE.start_main_~temp~0#1|)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_main_~i~2#1|) (<= |ULTIMATE.start_main_~i~2#1| 2147483647)))) (= |#NULL.base| 0)) [2022-11-22 00:12:12,598 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 47) no Hoare annotation was computed. [2022-11-22 00:12:12,598 INFO L899 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2022-11-22 00:12:12,598 INFO L899 garLoopResultBuilder]: For program point L47-1(line 47) no Hoare annotation was computed. [2022-11-22 00:12:12,601 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:12:12,604 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:12:12,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:12:12 BoogieIcfgContainer [2022-11-22 00:12:12,626 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:12:12,627 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:12:12,627 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:12:12,627 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:12:12,628 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:11:50" (3/4) ... [2022-11-22 00:12:12,631 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-22 00:12:12,637 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure bor [2022-11-22 00:12:12,642 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2022-11-22 00:12:12,642 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-22 00:12:12,643 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-22 00:12:12,643 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:12:12,643 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-22 00:12:12,690 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/witness.graphml [2022-11-22 00:12:12,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:12:12,695 INFO L158 Benchmark]: Toolchain (without parser) took 23080.54ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 117.7MB in the beginning and 212.8MB in the end (delta: -95.1MB). Peak memory consumption was 83.2MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,696 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:12:12,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 272.44ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 106.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,697 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.87ms. Allocated memory is still 161.5MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:12:12,697 INFO L158 Benchmark]: Boogie Preprocessor took 44.02ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,697 INFO L158 Benchmark]: RCFGBuilder took 561.30ms. Allocated memory is still 161.5MB. Free memory was 103.5MB in the beginning and 86.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,698 INFO L158 Benchmark]: TraceAbstraction took 22061.39ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 85.2MB in the beginning and 215.9MB in the end (delta: -130.7MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,698 INFO L158 Benchmark]: Witness Printer took 67.44ms. Allocated memory is still 339.7MB. Free memory was 215.9MB in the beginning and 212.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:12:12,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory was 74.3MB in the beginning and 74.1MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 272.44ms. Allocated memory is still 161.5MB. Free memory was 117.1MB in the beginning and 106.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.87ms. Allocated memory is still 161.5MB. Free memory was 106.7MB in the beginning and 105.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.02ms. Allocated memory is still 161.5MB. Free memory was 105.1MB in the beginning and 103.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 561.30ms. Allocated memory is still 161.5MB. Free memory was 103.5MB in the beginning and 86.2MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 22061.39ms. Allocated memory was 161.5MB in the beginning and 339.7MB in the end (delta: 178.3MB). Free memory was 85.2MB in the beginning and 215.9MB in the end (delta: -130.7MB). Peak memory consumption was 49.6MB. Max. memory is 16.1GB. * Witness Printer took 67.44ms. Allocated memory is still 339.7MB. Free memory was 215.9MB in the beginning and 212.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 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: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 37]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: 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 2 procedures, 29 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 22.0s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 173 mSDsluCounter, 374 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 231 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 694 IncrementalHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 143 mSDtfsCounter, 694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 343 GetRequests, 235 SyntacticMatches, 3 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=1, InterpolantAutomatonStates: 66, 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, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 22 PreInvPairs, 32 NumberOfFragments, 434 HoareAnnotationTreeSize, 22 FomulaSimplifications, 161 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 384 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 538 SizeOfPredicates, 6 NumberOfNonLiveVariables, 976 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 22 InterpolantComputations, 6 PerfectInterpolantSequences, 147/165 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: 6.2s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 8, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 63, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 148, TOOLS_POST_TIME: 5.3s, TOOLS_POST_CALL_APPLICATIONS: 14, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 8, TOOLS_POST_RETURN_TIME: 0.1s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 170, TOOLS_QUANTIFIERELIM_TIME: 5.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.5s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 290, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 31, DOMAIN_JOIN_TIME: 0.1s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 15, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 25, DOMAIN_ISSUBSETEQ_TIME: 0.1s, DOMAIN_ISBOTTOM_APPLICATIONS: 63, DOMAIN_ISBOTTOM_TIME: 0.1s, LOOP_SUMMARIZER_APPLICATIONS: 10, LOOP_SUMMARIZER_CACHE_MISSES: 10, LOOP_SUMMARIZER_OVERALL_TIME: 4.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 4.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 25, CALL_SUMMARIZER_APPLICATIONS: 8, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME: 1.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 1.1s, 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: 946, DAG_COMPRESSION_RETAINED_NODES: 203, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((((((((((((((((7 == unknown-#length-unknown[2] && ((((((((((0 <= #NULL && 0 <= x) && #NULL <= 0) && i <= 2147483647) && 1 <= i) && #NULL <= 0) && 0 <= x) && 0 <= #NULL) && x <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= i) && 0 <= x) && #NULL <= 0) && i <= 0) && #NULL <= 0) && 0 <= #NULL) && x <= 0))) && 114 == unknown-#memory_int-unknown[2][2]) && unknown-#memory_int-unknown[2][5] == 99) && 2 == unknown-#length-unknown[1]) && 111 == unknown-#memory_int-unknown[2][1]) && \valid[x] == 1) && unknown-#memory_int-unknown[2][4] == 46) && 52 == unknown-#memory_int-unknown[2][3]) && \valid[1] == 1) && unknown-#memory_int-unknown[2][6] == 0) && \valid[0] == 0) && \valid[2] == 1) && unknown-#memory_int-unknown[1][0] == 48) && unknown-#StackHeapBarrier-unknown < x) && unknown-#length-unknown[x] == 400000) && unknown-#memory_int-unknown[1][1] == 0) && 98 == unknown-#memory_int-unknown[2][0]) && 0 < unknown-#StackHeapBarrier-unknown) || (((((((((((0 <= #NULL && 0 <= x) && #NULL <= 0) && i <= 2147483647) && 1 <= i) && #NULL <= 0) && 0 <= x) && 0 <= #NULL) && x <= 0) && 0 <= unknown-#StackHeapBarrier-unknown) || (((((((0 <= #NULL && 0 <= i) && 0 <= x) && #NULL <= 0) && i <= 0) && #NULL <= 0) && 0 <= #NULL) && x <= 0)) && 1 <= i) - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: ((((((((i <= 2147483647 && x == 0) && #NULL == 0) && 0 <= x) && 0 <= ret + 2147483648) && 100000 <= i) && ret <= 2147483647) && 0 <= unknown-#StackHeapBarrier-unknown) && ((((ret2 <= 2147483647 && i == 0) && 0 <= ret2 + 2147483648) && unknown-#memory_int-unknown[x][x] == temp) || (((ret2 <= 2147483647 && 0 <= ret2 + 2147483648) && 1 <= i) && i <= 2147483647))) && #NULL == 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((!(#NULL == 0) || (((0 <= x && 0 <= x) && x <= 0) && 2 <= i)) || !(#NULL == 0)) || (((x == x && x == x) && res == unknown-#memory_int-unknown[x][x]) && 1 == i)) || !(0 <= x)) || !(x == 0)) || !(0 <= unknown-#StackHeapBarrier-unknown) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-22 00:12:12,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03a617de-deef-479a-bf36-67b6ad26f118/bin/utaipan-g80aRyZoba/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