./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/array-multidimensional/rev-3-u.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/rev-3-u.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fe3cf414f0e241a9a4e73e59647cf6619ea50b905df4a1c2a404b3413992b780 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 23:53:35,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:53:35,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:53:35,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:53:35,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:53:35,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:53:35,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:53:35,897 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:53:35,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:53:35,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:53:35,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:53:35,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:53:35,905 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:53:35,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:53:35,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:53:35,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:53:35,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:53:35,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:53:35,921 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:53:35,924 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:53:35,928 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:53:35,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:53:35,933 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:53:35,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:53:35,940 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:53:35,948 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:53:35,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:53:35,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:53:35,951 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:53:35,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:53:35,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:53:35,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:53:35,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:53:35,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:53:35,961 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:53:35,962 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:53:35,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:53:35,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:53:35,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:53:35,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:53:35,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:53:35,970 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-25 23:53:36,020 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:53:36,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:53:36,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:53:36,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:53:36,024 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:53:36,024 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:53:36,025 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:53:36,025 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:53:36,025 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:53:36,026 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:53:36,027 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:53:36,027 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:53:36,028 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:53:36,028 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:53:36,028 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:53:36,029 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:53:36,029 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:53:36,029 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:53:36,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:53:36,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 23:53:36,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:53:36,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:53:36,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 23:53:36,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:53:36,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:53:36,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:53:36,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:53:36,039 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:53:36,040 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 23:53:36,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:53:36,041 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:53:36,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:53:36,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:53:36,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:53:36,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:36,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:53:36,045 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:53:36,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:53:36,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:53:36,047 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:53:36,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:53:36,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:53:36,048 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:53:36,048 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_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fe3cf414f0e241a9a4e73e59647cf6619ea50b905df4a1c2a404b3413992b780 [2022-11-25 23:53:36,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:53:36,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:53:36,438 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:53:36,439 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:53:36,440 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:53:36,441 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/array-multidimensional/rev-3-u.c [2022-11-25 23:53:40,052 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:53:40,239 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:53:40,240 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/sv-benchmarks/c/array-multidimensional/rev-3-u.c [2022-11-25 23:53:40,246 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/data/c947e517b/a6b781e08cbc44c99f1f11c61d5c407c/FLAG0c776221b [2022-11-25 23:53:40,268 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/data/c947e517b/a6b781e08cbc44c99f1f11c61d5c407c [2022-11-25 23:53:40,279 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:53:40,280 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:53:40,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:40,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:53:40,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:53:40,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5060f732 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40, skipping insertion in model container [2022-11-25 23:53:40,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,296 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:53:40,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:53:40,474 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_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/sv-benchmarks/c/array-multidimensional/rev-3-u.c[319,332] [2022-11-25 23:53:40,501 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:40,513 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:53:40,527 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_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/sv-benchmarks/c/array-multidimensional/rev-3-u.c[319,332] [2022-11-25 23:53:40,543 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:53:40,559 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:53:40,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40 WrapperNode [2022-11-25 23:53:40,559 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:53:40,561 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:40,561 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:53:40,561 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:53:40,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,607 INFO L138 Inliner]: procedures = 14, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 148 [2022-11-25 23:53:40,607 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:53:40,608 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:53:40,608 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:53:40,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:53:40,624 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,657 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,668 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:53:40,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:53:40,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:53:40,674 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:53:40,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (1/1) ... [2022-11-25 23:53:40,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:53:40,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:40,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:53:40,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:53:40,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:53:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:53:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:53:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:53:40,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:53:40,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:53:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:53:40,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:53:40,911 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:53:40,913 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:53:41,526 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:53:41,593 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:53:41,593 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-11-25 23:53:41,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:41 BoogieIcfgContainer [2022-11-25 23:53:41,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:53:41,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:53:41,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:53:41,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:53:41,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:53:40" (1/3) ... [2022-11-25 23:53:41,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729d842c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:41, skipping insertion in model container [2022-11-25 23:53:41,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:53:40" (2/3) ... [2022-11-25 23:53:41,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@729d842c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:53:41, skipping insertion in model container [2022-11-25 23:53:41,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:41" (3/3) ... [2022-11-25 23:53:41,609 INFO L112 eAbstractionObserver]: Analyzing ICFG rev-3-u.c [2022-11-25 23:53:41,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:53:41,635 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-11-25 23:53:41,708 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:53:41,720 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;@138fb69b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:53:41,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-11-25 23:53:41,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 52 states have (on average 1.9807692307692308) internal successors, (103), 94 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:41,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-25 23:53:41,734 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:41,734 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-25 23:53:41,735 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:41,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:41,742 INFO L85 PathProgramCache]: Analyzing trace with hash 7256927, now seen corresponding path program 1 times [2022-11-25 23:53:41,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:41,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501889809] [2022-11-25 23:53:41,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:41,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:41,851 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:41,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1548652109] [2022-11-25 23:53:41,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:41,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:41,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:41,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:41,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 23:53:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:41,994 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:41,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:42,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:42,042 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:42,042 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:42,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501889809] [2022-11-25 23:53:42,043 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:42,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1548652109] [2022-11-25 23:53:42,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1548652109] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:42,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:42,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:53:42,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171202585] [2022-11-25 23:53:42,048 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:42,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:42,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:42,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:42,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:42,093 INFO L87 Difference]: Start difference. First operand has 95 states, 52 states have (on average 1.9807692307692308) internal successors, (103), 94 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:42,209 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2022-11-25 23:53:42,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:42,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-11-25 23:53:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:42,222 INFO L225 Difference]: With dead ends: 95 [2022-11-25 23:53:42,222 INFO L226 Difference]: Without dead ends: 91 [2022-11-25 23:53:42,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:42,229 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:42,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 58 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:42,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-11-25 23:53:42,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2022-11-25 23:53:42,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 52 states have (on average 1.9038461538461537) internal successors, (99), 90 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 99 transitions. [2022-11-25 23:53:42,296 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 99 transitions. Word has length 4 [2022-11-25 23:53:42,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:42,297 INFO L495 AbstractCegarLoop]: Abstraction has 91 states and 99 transitions. [2022-11-25 23:53:42,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,298 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 99 transitions. [2022-11-25 23:53:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:53:42,299 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:42,299 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:53:42,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 23:53:42,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-25 23:53:42,506 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:42,507 INFO L85 PathProgramCache]: Analyzing trace with hash 224769598, now seen corresponding path program 1 times [2022-11-25 23:53:42,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:42,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386786667] [2022-11-25 23:53:42,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:42,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:42,528 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795868851] [2022-11-25 23:53:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:42,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:42,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:42,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:42,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 23:53:42,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:42,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:42,634 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:42,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:42,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:42,656 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:42,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386786667] [2022-11-25 23:53:42,656 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:42,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795868851] [2022-11-25 23:53:42,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795868851] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:42,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:42,663 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:42,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454364186] [2022-11-25 23:53:42,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:42,665 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:42,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:42,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:42,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:42,668 INFO L87 Difference]: Start difference. First operand 91 states and 99 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:42,837 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2022-11-25 23:53:42,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:42,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 23:53:42,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:42,840 INFO L225 Difference]: With dead ends: 91 [2022-11-25 23:53:42,840 INFO L226 Difference]: Without dead ends: 88 [2022-11-25 23:53:42,840 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:42,842 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 85 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:42,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 55 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:42,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-25 23:53:42,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2022-11-25 23:53:42,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 52 states have (on average 1.8461538461538463) internal successors, (96), 87 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 96 transitions. [2022-11-25 23:53:42,858 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 96 transitions. Word has length 5 [2022-11-25 23:53:42,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:42,859 INFO L495 AbstractCegarLoop]: Abstraction has 88 states and 96 transitions. [2022-11-25 23:53:42,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:42,859 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 96 transitions. [2022-11-25 23:53:42,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:53:42,860 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:42,860 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:53:42,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:43,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:43,061 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:43,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:43,062 INFO L85 PathProgramCache]: Analyzing trace with hash 224763453, now seen corresponding path program 1 times [2022-11-25 23:53:43,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:43,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387784639] [2022-11-25 23:53:43,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:43,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:43,078 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:43,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288127738] [2022-11-25 23:53:43,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:43,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:43,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:43,081 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:43,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 23:53:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:43,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:43,182 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:43,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:43,195 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:43,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:43,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387784639] [2022-11-25 23:53:43,196 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:43,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288127738] [2022-11-25 23:53:43,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288127738] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:43,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:43,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77030778] [2022-11-25 23:53:43,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:43,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:43,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:43,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:43,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:43,202 INFO L87 Difference]: Start difference. First operand 88 states and 96 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:43,317 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2022-11-25 23:53:43,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:43,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-11-25 23:53:43,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:43,323 INFO L225 Difference]: With dead ends: 88 [2022-11-25 23:53:43,323 INFO L226 Difference]: Without dead ends: 85 [2022-11-25 23:53:43,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:43,325 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 80 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:43,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 56 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:43,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2022-11-25 23:53:43,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2022-11-25 23:53:43,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 52 states have (on average 1.7884615384615385) internal successors, (93), 84 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 93 transitions. [2022-11-25 23:53:43,345 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 93 transitions. Word has length 5 [2022-11-25 23:53:43,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:43,349 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 93 transitions. [2022-11-25 23:53:43,349 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,350 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 93 transitions. [2022-11-25 23:53:43,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 23:53:43,351 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:43,351 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 23:53:43,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:43,558 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:43,558 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:43,559 INFO L85 PathProgramCache]: Analyzing trace with hash 224964814, now seen corresponding path program 1 times [2022-11-25 23:53:43,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:43,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28195922] [2022-11-25 23:53:43,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:43,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:43,568 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:43,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992342826] [2022-11-25 23:53:43,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:43,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:43,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:43,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:43,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-25 23:53:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:43,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:43,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:43,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:43,677 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:43,678 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:43,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28195922] [2022-11-25 23:53:43,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:43,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992342826] [2022-11-25 23:53:43,679 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992342826] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:43,679 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:43,679 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 23:53:43,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822503072] [2022-11-25 23:53:43,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:43,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:43,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:43,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:43,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:43,688 INFO L87 Difference]: Start difference. First operand 85 states and 93 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:43,856 INFO L93 Difference]: Finished difference Result 169 states and 185 transitions. [2022-11-25 23:53:43,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:43,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-25 23:53:43,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:43,860 INFO L225 Difference]: With dead ends: 169 [2022-11-25 23:53:43,869 INFO L226 Difference]: Without dead ends: 166 [2022-11-25 23:53:43,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:43,873 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 81 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:43,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 107 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:43,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-11-25 23:53:43,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 136. [2022-11-25 23:53:43,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 103 states have (on average 1.766990291262136) internal successors, (182), 135 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 182 transitions. [2022-11-25 23:53:43,915 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 182 transitions. Word has length 5 [2022-11-25 23:53:43,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:43,916 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 182 transitions. [2022-11-25 23:53:43,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:43,916 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 182 transitions. [2022-11-25 23:53:43,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:43,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:43,917 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:43,932 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:44,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:44,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:44,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:44,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1622076984, now seen corresponding path program 1 times [2022-11-25 23:53:44,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:44,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198939098] [2022-11-25 23:53:44,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:44,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:44,140 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:44,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [637224003] [2022-11-25 23:53:44,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:44,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:44,142 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:44,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-25 23:53:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:44,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:44,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:44,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:44,235 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:44,235 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198939098] [2022-11-25 23:53:44,236 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:44,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [637224003] [2022-11-25 23:53:44,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [637224003] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:44,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:44,236 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:44,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316679108] [2022-11-25 23:53:44,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:44,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:44,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:44,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:44,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:44,239 INFO L87 Difference]: Start difference. First operand 136 states and 182 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) [2022-11-25 23:53:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:44,406 INFO L93 Difference]: Finished difference Result 268 states and 358 transitions. [2022-11-25 23:53:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:44,406 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 [2022-11-25 23:53:44,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:44,408 INFO L225 Difference]: With dead ends: 268 [2022-11-25 23:53:44,408 INFO L226 Difference]: Without dead ends: 265 [2022-11-25 23:53:44,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:44,410 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 78 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:44,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 104 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:44,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-11-25 23:53:44,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 220. [2022-11-25 23:53:44,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 187 states have (on average 1.7754010695187166) internal successors, (332), 219 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 332 transitions. [2022-11-25 23:53:44,437 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 332 transitions. Word has length 6 [2022-11-25 23:53:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:44,437 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 332 transitions. [2022-11-25 23:53:44,437 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) [2022-11-25 23:53:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 332 transitions. [2022-11-25 23:53:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:44,438 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:44,438 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:44,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:44,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:44,646 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:44,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:44,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1622267486, now seen corresponding path program 1 times [2022-11-25 23:53:44,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:44,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282416471] [2022-11-25 23:53:44,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:44,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:44,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:44,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [912890107] [2022-11-25 23:53:44,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:44,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:44,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:44,656 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:44,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-25 23:53:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:44,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:44,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:44,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:44,739 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:44,739 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:44,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282416471] [2022-11-25 23:53:44,739 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:44,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912890107] [2022-11-25 23:53:44,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912890107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:44,740 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:44,740 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:44,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493683981] [2022-11-25 23:53:44,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:44,741 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:44,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:44,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:44,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:44,742 INFO L87 Difference]: Start difference. First operand 220 states and 332 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) [2022-11-25 23:53:44,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:44,901 INFO L93 Difference]: Finished difference Result 430 states and 646 transitions. [2022-11-25 23:53:44,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:44,902 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 [2022-11-25 23:53:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:44,906 INFO L225 Difference]: With dead ends: 430 [2022-11-25 23:53:44,906 INFO L226 Difference]: Without dead ends: 427 [2022-11-25 23:53:44,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:44,908 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 76 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:44,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 109 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:44,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-11-25 23:53:44,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 352. [2022-11-25 23:53:44,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 319 states have (on average 1.793103448275862) internal successors, (572), 351 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 572 transitions. [2022-11-25 23:53:44,941 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 572 transitions. Word has length 6 [2022-11-25 23:53:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:44,941 INFO L495 AbstractCegarLoop]: Abstraction has 352 states and 572 transitions. [2022-11-25 23:53:44,942 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) [2022-11-25 23:53:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 572 transitions. [2022-11-25 23:53:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:53:44,943 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:44,943 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:53:44,957 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:45,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-25 23:53:45,150 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:45,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:45,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1426172971, now seen corresponding path program 1 times [2022-11-25 23:53:45,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:45,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395701755] [2022-11-25 23:53:45,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:45,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:45,161 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:45,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [874103503] [2022-11-25 23:53:45,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:45,164 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:45,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:45,166 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:45,191 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-25 23:53:45,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:45,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 23:53:45,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:45,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:45,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 23:53:45,252 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:45,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395701755] [2022-11-25 23:53:45,252 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:45,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874103503] [2022-11-25 23:53:45,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874103503] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:45,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 23:53:45,253 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 23:53:45,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129638446] [2022-11-25 23:53:45,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:45,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 23:53:45,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:45,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 23:53:45,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:45,255 INFO L87 Difference]: Start difference. First operand 352 states and 572 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) [2022-11-25 23:53:45,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:45,384 INFO L93 Difference]: Finished difference Result 654 states and 1080 transitions. [2022-11-25 23:53:45,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 23:53:45,385 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 [2022-11-25 23:53:45,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:45,387 INFO L225 Difference]: With dead ends: 654 [2022-11-25 23:53:45,388 INFO L226 Difference]: Without dead ends: 348 [2022-11-25 23:53:45,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 23:53:45,390 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 79 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:45,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 20 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:53:45,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-25 23:53:45,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2022-11-25 23:53:45,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 319 states have (on average 1.6896551724137931) internal successors, (539), 347 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 539 transitions. [2022-11-25 23:53:45,414 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 539 transitions. Word has length 6 [2022-11-25 23:53:45,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:45,414 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 539 transitions. [2022-11-25 23:53:45,415 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) [2022-11-25 23:53:45,415 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 539 transitions. [2022-11-25 23:53:45,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 23:53:45,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:45,416 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-11-25 23:53:45,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:45,622 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-25 23:53:45,623 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:45,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:45,623 INFO L85 PathProgramCache]: Analyzing trace with hash -1998602181, now seen corresponding path program 1 times [2022-11-25 23:53:45,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:45,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042536136] [2022-11-25 23:53:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:45,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:45,635 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:45,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707716506] [2022-11-25 23:53:45,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:45,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:45,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:45,638 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:45,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-25 23:53:45,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:53:45,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:45,769 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:45,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:53:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:53:45,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:45,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042536136] [2022-11-25 23:53:45,814 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:45,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707716506] [2022-11-25 23:53:45,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707716506] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:53:45,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [990920583] [2022-11-25 23:53:45,840 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2022-11-25 23:53:45,840 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:53:45,846 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:53:45,853 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:53:45,853 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:53:45,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:45,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,044 INFO L321 Elim1Store]: treesize reduction 95, result has 28.0 percent of original size [2022-11-25 23:53:46,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2022-11-25 23:53:46,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,206 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:53:46,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:53:46,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,355 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:53:46,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:46,655 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-11-25 23:53:46,655 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 381 treesize of output 357 [2022-11-25 23:53:46,982 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 27 treesize of output 23 [2022-11-25 23:53:47,099 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 27 treesize of output 23 [2022-11-25 23:53:47,141 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:53:47,662 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [990920583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:53:47,662 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:53:47,662 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 8 [2022-11-25 23:53:47,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127390733] [2022-11-25 23:53:47,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:53:47,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 23:53:47,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:47,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 23:53:47,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-25 23:53:47,664 INFO L87 Difference]: Start difference. First operand 348 states and 539 transitions. Second operand has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-25 23:53:50,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:50,352 INFO L93 Difference]: Finished difference Result 687 states and 1065 transitions. [2022-11-25 23:53:50,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 23:53:50,353 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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 9 [2022-11-25 23:53:50,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:50,357 INFO L225 Difference]: With dead ends: 687 [2022-11-25 23:53:50,358 INFO L226 Difference]: Without dead ends: 348 [2022-11-25 23:53:50,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2022-11-25 23:53:50,364 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 3 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:50,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 72 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:53:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2022-11-25 23:53:50,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 346. [2022-11-25 23:53:50,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 317 states have (on average 1.6845425867507886) internal successors, (534), 345 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:50,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 534 transitions. [2022-11-25 23:53:50,400 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 534 transitions. Word has length 9 [2022-11-25 23:53:50,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:50,401 INFO L495 AbstractCegarLoop]: Abstraction has 346 states and 534 transitions. [2022-11-25 23:53:50,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.75) internal successors, (7), 4 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) [2022-11-25 23:53:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 534 transitions. [2022-11-25 23:53:50,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 23:53:50,403 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:50,403 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:50,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-25 23:53:50,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:50,610 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:53:50,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:53:50,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1933568078, now seen corresponding path program 1 times [2022-11-25 23:53:50,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:53:50,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815822038] [2022-11-25 23:53:50,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:50,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:53:50,619 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:53:50,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1897374827] [2022-11-25 23:53:50,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:53:50,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:53:50,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:53:50,622 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:53:50,665 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-11-25 23:53:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:53:50,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 23:53:50,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:53:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:53:50,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:53:50,788 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 23:53:50,788 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:53:50,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815822038] [2022-11-25 23:53:50,789 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:53:50,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1897374827] [2022-11-25 23:53:50,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1897374827] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:53:50,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1099979535] [2022-11-25 23:53:50,792 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2022-11-25 23:53:50,792 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:53:50,793 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:53:50,793 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:53:50,793 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:53:50,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,921 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:53:50,922 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:53:50,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:50,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2022-11-25 23:53:51,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:51,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:53:51,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:51,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:53:51,196 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-11-25 23:53:51,197 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 381 treesize of output 357 [2022-11-25 23:53:51,422 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 27 treesize of output 23 [2022-11-25 23:53:51,533 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 27 treesize of output 23 [2022-11-25 23:53:51,576 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 135 treesize of output 113 [2022-11-25 23:53:51,641 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 27 treesize of output 23 [2022-11-25 23:53:51,687 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 27 treesize of output 23 [2022-11-25 23:53:51,744 INFO L321 Elim1Store]: treesize reduction 28, result has 48.1 percent of original size [2022-11-25 23:53:51,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 121 treesize of output 109 [2022-11-25 23:53:51,839 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 27 treesize of output 23 [2022-11-25 23:53:52,054 INFO L321 Elim1Store]: treesize reduction 108, result has 12.2 percent of original size [2022-11-25 23:53:52,055 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 2 case distinctions, treesize of input 214 treesize of output 216 [2022-11-25 23:53:52,134 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 27 treesize of output 23 [2022-11-25 23:53:52,155 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 27 treesize of output 23 [2022-11-25 23:53:52,166 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:53:58,916 WARN L233 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 110 DAG size of output: 88 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 23:53:59,227 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5058#(and (< 2147483646 |ULTIMATE.start_main_~j~0#1|) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 1000 |ULTIMATE.start_main_~k~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-11-25 23:53:59,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:53:59,227 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:53:59,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-11-25 23:53:59,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914324415] [2022-11-25 23:53:59,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:53:59,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 23:53:59,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:53:59,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 23:53:59,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:53:59,229 INFO L87 Difference]: Start difference. First operand 346 states and 534 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:59,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:53:59,750 INFO L93 Difference]: Finished difference Result 1022 states and 1574 transitions. [2022-11-25 23:53:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 23:53:59,750 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-25 23:53:59,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:53:59,754 INFO L225 Difference]: With dead ends: 1022 [2022-11-25 23:53:59,754 INFO L226 Difference]: Without dead ends: 683 [2022-11-25 23:53:59,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2022-11-25 23:53:59,756 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 518 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 518 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 23:53:59,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [518 Valid, 74 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 23:53:59,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 683 states. [2022-11-25 23:53:59,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 683 to 620. [2022-11-25 23:53:59,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 595 states have (on average 1.5260504201680671) internal successors, (908), 619 states have internal predecessors, (908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:59,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 908 transitions. [2022-11-25 23:53:59,803 INFO L78 Accepts]: Start accepts. Automaton has 620 states and 908 transitions. Word has length 13 [2022-11-25 23:53:59,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:53:59,804 INFO L495 AbstractCegarLoop]: Abstraction has 620 states and 908 transitions. [2022-11-25 23:53:59,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:53:59,804 INFO L276 IsEmpty]: Start isEmpty. Operand 620 states and 908 transitions. [2022-11-25 23:53:59,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-25 23:53:59,805 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:53:59,805 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:53:59,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:00,012 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:00,012 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:54:00,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:00,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1720133241, now seen corresponding path program 1 times [2022-11-25 23:54:00,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:00,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160645968] [2022-11-25 23:54:00,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:00,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:00,027 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:54:00,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [877885671] [2022-11-25 23:54:00,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:00,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:00,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:00,030 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:00,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-11-25 23:54:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:00,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 23:54:00,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:00,236 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:54:00,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:00,331 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 22 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 23:54:00,331 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:00,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160645968] [2022-11-25 23:54:00,331 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:54:00,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877885671] [2022-11-25 23:54:00,332 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877885671] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:00,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2138989696] [2022-11-25 23:54:00,335 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 23:54:00,335 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:00,335 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:00,336 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:00,336 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:00,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,431 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:54:00,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:54:00,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,451 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2022-11-25 23:54:00,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:54:00,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:00,612 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:00,646 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-25 23:54:00,647 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 373 treesize of output 359 [2022-11-25 23:54:00,961 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 27 treesize of output 23 [2022-11-25 23:54:01,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:01,126 INFO L321 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2022-11-25 23:54:01,127 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 198 [2022-11-25 23:54:01,223 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 27 treesize of output 23 [2022-11-25 23:54:01,396 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 27 treesize of output 23 [2022-11-25 23:54:01,448 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 27 treesize of output 23 [2022-11-25 23:54:01,583 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 27 treesize of output 23 [2022-11-25 23:54:01,639 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 27 treesize of output 23 [2022-11-25 23:54:01,677 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 27 treesize of output 23 [2022-11-25 23:54:01,751 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 27 treesize of output 23 [2022-11-25 23:54:01,799 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 27 treesize of output 23 [2022-11-25 23:54:01,839 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 27 treesize of output 23 [2022-11-25 23:54:01,869 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 27 treesize of output 23 [2022-11-25 23:54:01,910 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:02,466 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7106#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-11-25 23:54:02,466 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:54:02,466 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:54:02,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 13 [2022-11-25 23:54:02,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665709302] [2022-11-25 23:54:02,467 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:54:02,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-25 23:54:02,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:02,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-25 23:54:02,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=301, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:54:02,469 INFO L87 Difference]: Start difference. First operand 620 states and 908 transitions. Second operand has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:03,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:03,628 INFO L93 Difference]: Finished difference Result 2172 states and 3131 transitions. [2022-11-25 23:54:03,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-25 23:54:03,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 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 25 [2022-11-25 23:54:03,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:03,638 INFO L225 Difference]: With dead ends: 2172 [2022-11-25 23:54:03,638 INFO L226 Difference]: Without dead ends: 1568 [2022-11-25 23:54:03,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=190, Invalid=460, Unknown=0, NotChecked=0, Total=650 [2022-11-25 23:54:03,641 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 1369 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:03,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 74 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 23:54:03,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1568 states. [2022-11-25 23:54:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1568 to 1412. [2022-11-25 23:54:03,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 1387 states have (on average 1.5263157894736843) internal successors, (2117), 1411 states have internal predecessors, (2117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:03,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2117 transitions. [2022-11-25 23:54:03,709 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2117 transitions. Word has length 25 [2022-11-25 23:54:03,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:03,709 INFO L495 AbstractCegarLoop]: Abstraction has 1412 states and 2117 transitions. [2022-11-25 23:54:03,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7857142857142856) internal successors, (39), 13 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2117 transitions. [2022-11-25 23:54:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-25 23:54:03,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:03,715 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:03,722 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:03,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-25 23:54:03,921 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:54:03,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:03,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1970331047, now seen corresponding path program 2 times [2022-11-25 23:54:03,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:03,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818432677] [2022-11-25 23:54:03,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:03,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:03,935 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:54:03,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1353385125] [2022-11-25 23:54:03,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:54:03,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:03,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:03,937 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:03,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-11-25 23:54:04,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:54:04,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:54:04,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:54:04,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:04,097 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-25 23:54:04,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:04,199 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-11-25 23:54:04,199 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:04,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818432677] [2022-11-25 23:54:04,200 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:54:04,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353385125] [2022-11-25 23:54:04,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353385125] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:04,200 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [355568019] [2022-11-25 23:54:04,205 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2022-11-25 23:54:04,206 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:04,206 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:04,206 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:04,207 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:04,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,313 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:54:04,314 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:54:04,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,338 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2022-11-25 23:54:04,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,450 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:54:04,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:04,628 INFO L321 Elim1Store]: treesize reduction 82, result has 7.9 percent of original size [2022-11-25 23:54:04,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 381 treesize of output 357 [2022-11-25 23:54:04,795 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 27 treesize of output 23 [2022-11-25 23:54:04,953 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 27 treesize of output 23 [2022-11-25 23:54:05,010 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 27 treesize of output 23 [2022-11-25 23:54:05,074 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 27 treesize of output 23 [2022-11-25 23:54:05,178 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 27 treesize of output 23 [2022-11-25 23:54:05,230 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 27 treesize of output 23 [2022-11-25 23:54:05,360 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 27 treesize of output 23 [2022-11-25 23:54:05,407 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 27 treesize of output 23 [2022-11-25 23:54:05,503 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 27 treesize of output 23 [2022-11-25 23:54:05,569 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 27 treesize of output 23 [2022-11-25 23:54:05,622 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 27 treesize of output 23 [2022-11-25 23:54:05,662 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:06,323 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '11435#(and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (< 2147483646 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-11-25 23:54:06,323 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:54:06,323 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:54:06,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 23:54:06,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1213172190] [2022-11-25 23:54:06,324 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:54:06,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:54:06,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:06,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:54:06,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2022-11-25 23:54:06,325 INFO L87 Difference]: Start difference. First operand 1412 states and 2117 transitions. Second operand has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:06,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:06,468 INFO L93 Difference]: Finished difference Result 1412 states and 2117 transitions. [2022-11-25 23:54:06,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:54:06,469 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 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 43 [2022-11-25 23:54:06,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:06,474 INFO L225 Difference]: With dead ends: 1412 [2022-11-25 23:54:06,475 INFO L226 Difference]: Without dead ends: 1409 [2022-11-25 23:54:06,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 113 SyntacticMatches, 3 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2022-11-25 23:54:06,476 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 221 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:06,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 18 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:54:06,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2022-11-25 23:54:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 749. [2022-11-25 23:54:06,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 749 states, 727 states have (on average 1.5061898211829436) internal successors, (1095), 748 states have internal predecessors, (1095), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:06,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 749 states to 749 states and 1095 transitions. [2022-11-25 23:54:06,516 INFO L78 Accepts]: Start accepts. Automaton has 749 states and 1095 transitions. Word has length 43 [2022-11-25 23:54:06,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:06,516 INFO L495 AbstractCegarLoop]: Abstraction has 749 states and 1095 transitions. [2022-11-25 23:54:06,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:06,517 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states and 1095 transitions. [2022-11-25 23:54:06,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-25 23:54:06,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:06,518 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:06,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:06,723 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-25 23:54:06,723 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:54:06,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:06,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2112069114, now seen corresponding path program 1 times [2022-11-25 23:54:06,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:06,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130583411] [2022-11-25 23:54:06,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:06,724 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:06,738 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:54:06,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1949729126] [2022-11-25 23:54:06,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:06,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:06,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:06,742 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:06,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-11-25 23:54:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:06,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 203 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 23:54:06,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:07,092 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 2 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:54:07,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:07,371 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 2 proven. 145 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 23:54:07,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:07,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130583411] [2022-11-25 23:54:07,372 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:54:07,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949729126] [2022-11-25 23:54:07,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949729126] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:07,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1791406688] [2022-11-25 23:54:07,377 INFO L159 IcfgInterpreter]: Started Sifa with 16 locations of interest [2022-11-25 23:54:07,377 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:07,378 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:07,378 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:07,378 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:07,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,462 INFO L321 Elim1Store]: treesize reduction 95, result has 28.0 percent of original size [2022-11-25 23:54:07,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 39 treesize of output 63 [2022-11-25 23:54:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,559 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:54:07,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:54:07,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:54:07,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:07,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:07,739 INFO L321 Elim1Store]: treesize reduction 89, result has 27.6 percent of original size [2022-11-25 23:54:07,739 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 373 treesize of output 359 [2022-11-25 23:54:08,075 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 27 treesize of output 23 [2022-11-25 23:54:08,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:08,256 INFO L321 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2022-11-25 23:54:08,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 196 treesize of output 198 [2022-11-25 23:54:08,335 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 27 treesize of output 23 [2022-11-25 23:54:08,485 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 27 treesize of output 23 [2022-11-25 23:54:08,523 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 27 treesize of output 23 [2022-11-25 23:54:08,626 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 27 treesize of output 23 [2022-11-25 23:54:08,689 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 27 treesize of output 23 [2022-11-25 23:54:08,776 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 27 treesize of output 23 [2022-11-25 23:54:08,817 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 27 treesize of output 23 [2022-11-25 23:54:08,867 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 27 treesize of output 23 [2022-11-25 23:54:08,921 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:09,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [1791406688] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 23:54:09,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:54:09,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13, 13] total 32 [2022-11-25 23:54:09,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229423856] [2022-11-25 23:54:09,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 23:54:09,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 23:54:09,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 23:54:09,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=364, Invalid=692, Unknown=0, NotChecked=0, Total=1056 [2022-11-25 23:54:09,654 INFO L87 Difference]: Start difference. First operand 749 states and 1095 transitions. Second operand has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:10,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:10,665 INFO L93 Difference]: Finished difference Result 1416 states and 2132 transitions. [2022-11-25 23:54:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-25 23:54:10,666 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-11-25 23:54:10,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:10,671 INFO L225 Difference]: With dead ends: 1416 [2022-11-25 23:54:10,671 INFO L226 Difference]: Without dead ends: 772 [2022-11-25 23:54:10,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 95 SyntacticMatches, 7 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 735 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=441, Invalid=1041, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 23:54:10,674 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 174 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:10,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 0 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 23:54:10,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2022-11-25 23:54:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 360. [2022-11-25 23:54:10,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 358 states have (on average 1.0502793296089385) internal successors, (376), 359 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:10,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 376 transitions. [2022-11-25 23:54:10,710 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 376 transitions. Word has length 45 [2022-11-25 23:54:10,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:10,711 INFO L495 AbstractCegarLoop]: Abstraction has 360 states and 376 transitions. [2022-11-25 23:54:10,711 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:10,712 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 376 transitions. [2022-11-25 23:54:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-11-25 23:54:10,717 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:10,718 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:10,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:10,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:10,925 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:54:10,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:10,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1763171432, now seen corresponding path program 1 times [2022-11-25 23:54:10,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:10,926 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632317010] [2022-11-25 23:54:10,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:10,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:10,943 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:54:10,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259347603] [2022-11-25 23:54:10,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:10,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:10,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:10,946 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:10,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-11-25 23:54:11,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 23:54:11,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-25 23:54:11,082 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:11,346 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 2 proven. 145 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-25 23:54:11,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:11,616 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 2 proven. 145 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-11-25 23:54:11,616 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:11,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632317010] [2022-11-25 23:54:11,616 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:54:11,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259347603] [2022-11-25 23:54:11,617 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259347603] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:11,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [844444538] [2022-11-25 23:54:11,619 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-25 23:54:11,619 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:11,620 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:11,620 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:11,620 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:11,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,741 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:54:11,742 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:54:11,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,764 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2022-11-25 23:54:11,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,826 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:54:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:11,887 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 72 [2022-11-25 23:54:12,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,101 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-25 23:54:12,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,111 INFO L321 Elim1Store]: treesize reduction 45, result has 2.2 percent of original size [2022-11-25 23:54:12,111 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 5 case distinctions, treesize of input 473 treesize of output 393 [2022-11-25 23:54:12,203 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 27 treesize of output 23 [2022-11-25 23:54:12,367 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 27 treesize of output 23 [2022-11-25 23:54:12,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,420 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 70 treesize of output 52 [2022-11-25 23:54:12,447 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 27 treesize of output 23 [2022-11-25 23:54:12,537 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 27 treesize of output 23 [2022-11-25 23:54:12,562 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 78 treesize of output 56 [2022-11-25 23:54:12,617 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 147 [2022-11-25 23:54:12,675 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 27 treesize of output 23 [2022-11-25 23:54:12,757 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 27 treesize of output 23 [2022-11-25 23:54:12,782 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 78 treesize of output 56 [2022-11-25 23:54:12,831 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 27 treesize of output 23 [2022-11-25 23:54:12,906 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 27 treesize of output 23 [2022-11-25 23:54:12,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:12,941 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 70 treesize of output 52 [2022-11-25 23:54:12,987 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 27 treesize of output 23 [2022-11-25 23:54:13,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:13,086 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 61 treesize of output 61 [2022-11-25 23:54:13,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:13,221 INFO L321 Elim1Store]: treesize reduction 169, result has 26.5 percent of original size [2022-11-25 23:54:13,222 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 223 [2022-11-25 23:54:13,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:13,496 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 61 treesize of output 61 [2022-11-25 23:54:13,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:13,541 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 61 treesize of output 61 [2022-11-25 23:54:13,727 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:17,865 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '17045#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) |ULTIMATE.start_main_~i~0#1|))) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~k~0#1| (- 4)) (- 4) (* (+ (* (- 1) |ULTIMATE.start_main_~j~0#1|) (- 1) |ULTIMATE.start_main_~n~0#1|) (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~n~0#1| 4) (* (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (+ (- 1) (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~n~0#1|))))) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-11-25 23:54:17,866 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:54:17,866 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:54:17,866 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2022-11-25 23:54:17,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180618606] [2022-11-25 23:54:17,866 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:54:17,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-11-25 23:54:17,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:17,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-11-25 23:54:17,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2022-11-25 23:54:17,869 INFO L87 Difference]: Start difference. First operand 360 states and 376 transitions. Second operand has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:19,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:19,478 INFO L93 Difference]: Finished difference Result 1145 states and 1222 transitions. [2022-11-25 23:54:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-25 23:54:19,478 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 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 132 [2022-11-25 23:54:19,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:19,481 INFO L225 Difference]: With dead ends: 1145 [2022-11-25 23:54:19,482 INFO L226 Difference]: Without dead ends: 788 [2022-11-25 23:54:19,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 300 SyntacticMatches, 57 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3252 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=721, Invalid=1729, Unknown=0, NotChecked=0, Total=2450 [2022-11-25 23:54:19,484 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 3094 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:19,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3094 Valid, 42 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-25 23:54:19,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-11-25 23:54:19,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 756. [2022-11-25 23:54:19,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 756 states, 754 states have (on average 1.039787798408488) internal successors, (784), 755 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:19,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 784 transitions. [2022-11-25 23:54:19,539 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 784 transitions. Word has length 132 [2022-11-25 23:54:19,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:19,539 INFO L495 AbstractCegarLoop]: Abstraction has 756 states and 784 transitions. [2022-11-25 23:54:19,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.5384615384615383) internal successors, (92), 25 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:19,540 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 784 transitions. [2022-11-25 23:54:19,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2022-11-25 23:54:19,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:54:19,542 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:19,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:19,748 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 23:54:19,748 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-11-25 23:54:19,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:54:19,749 INFO L85 PathProgramCache]: Analyzing trace with hash -2036297496, now seen corresponding path program 2 times [2022-11-25 23:54:19,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:54:19,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255258239] [2022-11-25 23:54:19,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:54:19,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:54:19,780 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 23:54:19,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1381085913] [2022-11-25 23:54:19,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 23:54:19,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:19,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:54:19,782 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 23:54:19,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-11-25 23:54:19,892 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-25 23:54:19,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 23:54:19,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-25 23:54:19,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 23:54:20,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1707 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2022-11-25 23:54:20,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 23:54:20,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1707 backedges. 0 proven. 154 refuted. 0 times theorem prover too weak. 1553 trivial. 0 not checked. [2022-11-25 23:54:20,704 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 23:54:20,704 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255258239] [2022-11-25 23:54:20,704 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-25 23:54:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381085913] [2022-11-25 23:54:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381085913] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 23:54:20,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1539476057] [2022-11-25 23:54:20,707 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2022-11-25 23:54:20,707 INFO L166 IcfgInterpreter]: Building call graph [2022-11-25 23:54:20,707 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-25 23:54:20,708 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-25 23:54:20,708 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-25 23:54:20,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,803 INFO L321 Elim1Store]: treesize reduction 98, result has 24.6 percent of original size [2022-11-25 23:54:20,803 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 44 treesize of output 69 [2022-11-25 23:54:20,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,831 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 12 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 49 [2022-11-25 23:54:20,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 44 [2022-11-25 23:54:20,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:20,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 92 treesize of output 76 [2022-11-25 23:54:21,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:21,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:21,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:21,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:21,081 INFO L321 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2022-11-25 23:54:21,081 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 481 treesize of output 397 [2022-11-25 23:54:21,160 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 27 treesize of output 23 [2022-11-25 23:54:21,304 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 27 treesize of output 23 [2022-11-25 23:54:21,345 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 78 treesize of output 56 [2022-11-25 23:54:21,382 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 27 treesize of output 23 [2022-11-25 23:54:21,498 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 27 treesize of output 23 [2022-11-25 23:54:21,517 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 78 treesize of output 56 [2022-11-25 23:54:21,563 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 147 [2022-11-25 23:54:21,612 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 27 treesize of output 23 [2022-11-25 23:54:21,704 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 27 treesize of output 23 [2022-11-25 23:54:21,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:21,736 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 70 treesize of output 52 [2022-11-25 23:54:21,781 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 27 treesize of output 23 [2022-11-25 23:54:21,852 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 27 treesize of output 23 [2022-11-25 23:54:21,887 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 78 treesize of output 56 [2022-11-25 23:54:21,930 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 27 treesize of output 23 [2022-11-25 23:54:22,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:22,044 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 61 treesize of output 61 [2022-11-25 23:54:22,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:22,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:22,205 INFO L321 Elim1Store]: treesize reduction 169, result has 26.5 percent of original size [2022-11-25 23:54:22,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 212 treesize of output 223 [2022-11-25 23:54:22,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:22,444 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 61 treesize of output 61 [2022-11-25 23:54:22,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-25 23:54:22,487 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 61 treesize of output 61 [2022-11-25 23:54:22,639 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-25 23:54:28,392 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20794#(and (= (select (select |#memory_int| |ULTIMATE.start_main_~#A~0#1.base|) (+ (* |ULTIMATE.start_main_~k~0#1| 4) |ULTIMATE.start_main_~#A~0#1.offset| (* |ULTIMATE.start_main_~j~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (* (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) |ULTIMATE.start_main_~i~0#1|))) (select (select |#memory_int| |ULTIMATE.start_main_~#B~0#1.base|) (+ |ULTIMATE.start_main_~#B~0#1.offset| (* |ULTIMATE.start_main_~k~0#1| (- 4)) (- 4) (* (+ (* (- 1) |ULTIMATE.start_main_~j~0#1|) (- 1) |ULTIMATE.start_main_~n~0#1|) (* |ULTIMATE.start_main_~n~0#1| 4)) (* |ULTIMATE.start_main_~n~0#1| 4) (* (* |ULTIMATE.start_main_~n~0#1| (* |ULTIMATE.start_main_~n~0#1| 4)) (+ (- 1) (* (- 1) |ULTIMATE.start_main_~i~0#1|) |ULTIMATE.start_main_~n~0#1|))))) (= |ULTIMATE.start_main_~i~0#1| 0) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (< 2147483646 |ULTIMATE.start_main_~k~0#1|) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~j~0#1| 0) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0))' at error location [2022-11-25 23:54:28,392 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-25 23:54:28,392 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 23:54:28,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 4 [2022-11-25 23:54:28,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817074784] [2022-11-25 23:54:28,393 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 23:54:28,394 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-25 23:54:28,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 23:54:28,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-25 23:54:28,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-11-25 23:54:28,395 INFO L87 Difference]: Start difference. First operand 756 states and 784 transitions. Second operand has 6 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:28,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 23:54:28,562 INFO L93 Difference]: Finished difference Result 768 states and 801 transitions. [2022-11-25 23:54:28,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 23:54:28,563 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 258 [2022-11-25 23:54:28,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 23:54:28,564 INFO L225 Difference]: With dead ends: 768 [2022-11-25 23:54:28,564 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 23:54:28,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 774 GetRequests, 644 SyntacticMatches, 111 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1513 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=130, Invalid=290, Unknown=0, NotChecked=0, Total=420 [2022-11-25 23:54:28,567 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 76 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 23:54:28,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 30 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 23:54:28,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 23:54:28,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 23:54:28,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:28,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 23:54:28,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 258 [2022-11-25 23:54:28,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 23:54:28,568 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 23:54:28,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 23:54:28,568 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 23:54:28,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 23:54:28,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 42 remaining) [2022-11-25 23:54:28,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 42 remaining) [2022-11-25 23:54:28,572 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 42 remaining) [2022-11-25 23:54:28,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 42 remaining) [2022-11-25 23:54:28,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 42 remaining) [2022-11-25 23:54:28,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 42 remaining) [2022-11-25 23:54:28,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 42 remaining) [2022-11-25 23:54:28,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 42 remaining) [2022-11-25 23:54:28,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 42 remaining) [2022-11-25 23:54:28,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 42 remaining) [2022-11-25 23:54:28,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 42 remaining) [2022-11-25 23:54:28,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 42 remaining) [2022-11-25 23:54:28,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 42 remaining) [2022-11-25 23:54:28,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 42 remaining) [2022-11-25 23:54:28,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 42 remaining) [2022-11-25 23:54:28,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 42 remaining) [2022-11-25 23:54:28,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 42 remaining) [2022-11-25 23:54:28,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 42 remaining) [2022-11-25 23:54:28,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 42 remaining) [2022-11-25 23:54:28,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 42 remaining) [2022-11-25 23:54:28,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 42 remaining) [2022-11-25 23:54:28,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 42 remaining) [2022-11-25 23:54:28,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 42 remaining) [2022-11-25 23:54:28,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 42 remaining) [2022-11-25 23:54:28,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 42 remaining) [2022-11-25 23:54:28,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 42 remaining) [2022-11-25 23:54:28,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 42 remaining) [2022-11-25 23:54:28,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 42 remaining) [2022-11-25 23:54:28,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 42 remaining) [2022-11-25 23:54:28,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 42 remaining) [2022-11-25 23:54:28,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 42 remaining) [2022-11-25 23:54:28,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 42 remaining) [2022-11-25 23:54:28,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 42 remaining) [2022-11-25 23:54:28,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 42 remaining) [2022-11-25 23:54:28,580 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 42 remaining) [2022-11-25 23:54:28,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 42 remaining) [2022-11-25 23:54:28,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 42 remaining) [2022-11-25 23:54:28,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 42 remaining) [2022-11-25 23:54:28,581 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 42 remaining) [2022-11-25 23:54:28,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 42 remaining) [2022-11-25 23:54:28,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 42 remaining) [2022-11-25 23:54:28,582 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 42 remaining) [2022-11-25 23:54:28,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-11-25 23:54:28,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 23:54:28,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 23:54:34,567 INFO L899 garLoopResultBuilder]: For program point L68-3(lines 68 75) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point L52-1(line 52) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 23:54:34,568 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 23:54:34,569 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,569 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2022-11-25 23:54:34,569 INFO L895 garLoopResultBuilder]: At program point L70-2(lines 70 73) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,569 INFO L899 garLoopResultBuilder]: For program point L70-3(lines 70 73) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr35ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-1(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-2(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-3(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-4(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-5(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,570 INFO L899 garLoopResultBuilder]: For program point L71-6(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L71-7(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L71-8(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L71-9(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L71-10(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L895 garLoopResultBuilder]: At program point L71-11(line 71) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (< |ULTIMATE.start_main_~k~0#1| |ULTIMATE.start_main_~n~0#1|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2022-11-25 23:54:34,571 INFO L899 garLoopResultBuilder]: For program point L72-1(line 72) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW(line 52) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW(line 76) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,572 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 23:54:34,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-25 23:54:34,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2022-11-25 23:54:34,573 INFO L895 garLoopResultBuilder]: At program point L26-2(lines 26 38) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse6 (= |#NULL.base| 0))) (or (let ((.cse1 (* (mod (* |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~n~0#1|) 1073741824) 4)) (.cse3 (select |#memory_int| 1))) (and (= (select |#length| 3) 12) (= |ULTIMATE.start_main_~i~0#1| 0) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#A~0#1.base|) (< |#StackHeapBarrier| |ULTIMATE.start_main_~#B~0#1.base|) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= (select |#valid| |ULTIMATE.start_main_~#A~0#1.base|) 1) (= (select |#valid| |ULTIMATE.start_main_~#B~0#1.base|) 1) (= |ULTIMATE.start_main_~k~0#1| 0) .cse0 (= (select |#valid| 1) 1) (= (select |#length| |ULTIMATE.start_main_~#B~0#1.base|) .cse1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) .cse2 (= (select |#length| |ULTIMATE.start_main_~#A~0#1.base|) .cse1) (= (select .cse3 0) 48) (= 10 (select |#length| 2)) (not (= |ULTIMATE.start_main_~#B~0#1.base| |ULTIMATE.start_main_~#A~0#1.base|)) (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 (= (select .cse3 1) 0) (< 0 |#StackHeapBarrier|) .cse5 .cse6)) (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse0 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~n~0#1| |ULTIMATE.start_main_~j~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse2 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) .cse4 (<= 0 |#StackHeapBarrier|) .cse5 .cse6))) [2022-11-25 23:54:34,573 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,573 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW(line 56) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr33ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,574 INFO L895 garLoopResultBuilder]: At program point L45-2(lines 45 57) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse1 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (<= 0 |#StackHeapBarrier|)) (.cse6 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse7 (= |#NULL.base| 0))) (or (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse2 .cse3 .cse4 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|)) .cse5 .cse6 .cse7) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= |ULTIMATE.start_main_~k~0#1| 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 .cse5 .cse6 .cse7))) [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 33) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L895 garLoopResultBuilder]: At program point L29-2(lines 29 36) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point L29-3(lines 29 36) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW(line 74) no Hoare annotation was computed. [2022-11-25 23:54:34,575 INFO L895 garLoopResultBuilder]: At program point L31-2(lines 31 34) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,576 INFO L899 garLoopResultBuilder]: For program point L31-3(lines 31 34) no Hoare annotation was computed. [2022-11-25 23:54:34,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,576 INFO L895 garLoopResultBuilder]: At program point L48-2(lines 48 55) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,576 INFO L899 garLoopResultBuilder]: For program point L48-3(lines 48 55) no Hoare annotation was computed. [2022-11-25 23:54:34,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW(line 72) no Hoare annotation was computed. [2022-11-25 23:54:34,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,576 INFO L895 garLoopResultBuilder]: At program point L65-2(lines 65 77) the Hoare annotation is: (let ((.cse0 (<= 0 |ULTIMATE.start_main_~#A~0#1.base|)) (.cse1 (= |ULTIMATE.start_main_~#A~0#1.offset| 0)) (.cse2 (= |#NULL.offset| 0)) (.cse3 (<= 0 |ULTIMATE.start_main_~#B~0#1.base|)) (.cse4 (= |ULTIMATE.start_main_~#B~0#1.offset| 0)) (.cse5 (<= 0 |#StackHeapBarrier|)) (.cse6 (= |ULTIMATE.start_main_~n~0#1| 1000)) (.cse7 (= |#NULL.base| 0))) (or (and (<= 0 |ULTIMATE.start_main_~k~0#1|) .cse0 (<= |ULTIMATE.start_main_~i~0#1| 2147483646) .cse1 (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) .cse2 .cse3 .cse4 (not (< |ULTIMATE.start_main_~j~0#1| |ULTIMATE.start_main_~n~0#1|)) .cse5 .cse6 .cse7) (and (= |ULTIMATE.start_main_~i~0#1| 0) .cse0 (= |ULTIMATE.start_main_~k~0#1| 0) .cse1 .cse2 .cse3 (= |ULTIMATE.start_main_~j~0#1| 0) .cse4 .cse5 .cse6 .cse7))) [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point L33-1(line 33) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 37) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW(line 54) no Hoare annotation was computed. [2022-11-25 23:54:34,577 INFO L895 garLoopResultBuilder]: At program point L50-2(lines 50 53) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= |ULTIMATE.start_main_~j~0#1| 1000) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L50-3(lines 50 53) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW(line 71) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-1(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-2(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-3(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-4(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-5(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,578 INFO L899 garLoopResultBuilder]: For program point L51-6(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,580 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L51-7(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L51-8(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L51-9(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L51-10(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L51-11(line 51) no Hoare annotation was computed. [2022-11-25 23:54:34,581 INFO L899 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2022-11-25 23:54:34,582 INFO L895 garLoopResultBuilder]: At program point L68-2(lines 68 75) the Hoare annotation is: (and (<= 0 |ULTIMATE.start_main_~k~0#1|) (<= 0 |ULTIMATE.start_main_~#A~0#1.base|) (<= 0 |ULTIMATE.start_main_~j~0#1|) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|) (= |ULTIMATE.start_main_~#A~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~i~0#1|) (<= |ULTIMATE.start_main_~k~0#1| 2147483646) (= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_main_~#B~0#1.base|) (= |ULTIMATE.start_main_~#B~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |ULTIMATE.start_main_~n~0#1| 1000) (= |#NULL.base| 0)) [2022-11-25 23:54:34,586 INFO L445 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:54:34,589 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:54:34,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:54:34 BoogieIcfgContainer [2022-11-25 23:54:34,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:54:34,623 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:54:34,623 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:54:34,623 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:54:34,624 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:53:41" (3/4) ... [2022-11-25 23:54:34,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 23:54:34,640 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2022-11-25 23:54:34,641 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-11-25 23:54:34,642 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 23:54:34,642 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 23:54:34,694 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:54:34,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:54:34,695 INFO L158 Benchmark]: Toolchain (without parser) took 54414.73ms. Allocated memory was 167.8MB in the beginning and 509.6MB in the end (delta: 341.8MB). Free memory was 122.5MB in the beginning and 386.3MB in the end (delta: -263.8MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,696 INFO L158 Benchmark]: CDTParser took 0.91ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:54:34,696 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.41ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 111.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,696 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.47ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:54:34,697 INFO L158 Benchmark]: Boogie Preprocessor took 64.79ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 107.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,697 INFO L158 Benchmark]: RCFGBuilder took 923.62ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 88.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,698 INFO L158 Benchmark]: TraceAbstraction took 53021.82ms. Allocated memory was 167.8MB in the beginning and 509.6MB in the end (delta: 341.8MB). Free memory was 86.9MB in the beginning and 390.5MB in the end (delta: -303.6MB). Peak memory consumption was 259.1MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,704 INFO L158 Benchmark]: Witness Printer took 71.37ms. Allocated memory is still 509.6MB. Free memory was 390.5MB in the beginning and 386.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:54:34,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91ms. Allocated memory is still 132.1MB. Free memory was 75.6MB in the beginning and 75.5MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.41ms. Allocated memory is still 167.8MB. Free memory was 122.5MB in the beginning and 111.2MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.47ms. Allocated memory is still 167.8MB. Free memory was 111.2MB in the beginning and 109.7MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 64.79ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 107.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 923.62ms. Allocated memory is still 167.8MB. Free memory was 107.9MB in the beginning and 88.1MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 53021.82ms. Allocated memory was 167.8MB in the beginning and 509.6MB in the end (delta: 341.8MB). Free memory was 86.9MB in the beginning and 390.5MB in the end (delta: -303.6MB). Peak memory consumption was 259.1MB. Max. memory is 16.1GB. * Witness Printer took 71.37ms. Allocated memory is still 509.6MB. Free memory was 390.5MB in the beginning and 386.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 35]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 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: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 51]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 54]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 74]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 95 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 52.9s, OverallIterations: 14, TraceHistogramMax: 22, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 8.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6026 SdHoareTripleChecker+Valid, 4.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6026 mSDsluCounter, 819 SdHoareTripleChecker+Invalid, 3.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 295 mSDsCounter, 630 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2669 IncrementalHoareTripleChecker+Invalid, 3299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 630 mSolverCounterUnsat, 524 mSDtfsCounter, 2669 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1620 GetRequests, 1266 SyntacticMatches, 183 SemanticMatches, 171 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5889 ImplicationChecksByTransitivity, 23.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1412occurred in iteration=10, InterpolantAutomatonStates: 90, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1475 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 119 NumberOfFragments, 606 HoareAnnotationTreeSize, 10 FomulaSimplifications, 1868 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 10 FomulaSimplificationsInter, 28651 FormulaSimplificationTreeSizeReductionInter, 4.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 562 NumberOfCodeBlocks, 285 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 1066 ConstructedInterpolants, 0 QuantifiedInterpolants, 3144 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1467 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 3880/4828 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: 2.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 24, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 96, TOOLS_POST_TIME: 2.4s, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 96, TOOLS_QUANTIFIERELIM_TIME: 2.3s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 168, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 6, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 11, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 18, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 24, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 7, LOOP_SUMMARIZER_CACHE_MISSES: 7, LOOP_SUMMARIZER_OVERALL_TIME: 2.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 2.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 18, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 207, DAG_COMPRESSION_RETAINED_NODES: 75, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 42 specifications checked. All of them hold - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: (((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && j <= 1000) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && j <= 1000) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((unknown-#length-unknown[3] == 12 && i == 0) && unknown-#StackHeapBarrier-unknown < A) && unknown-#StackHeapBarrier-unknown < B) && 2 == unknown-#length-unknown[1]) && \valid[3] == 1) && \valid[A] == 1) && \valid[B] == 1) && k == 0) && A == 0) && \valid[1] == 1) && unknown-#length-unknown[B] == n * n * n % 1073741824 * 4) && \valid[0] == 0) && \valid[2] == 1) && #NULL == 0) && unknown-#length-unknown[A] == n * n * n % 1073741824 * 4) && unknown-#memory_int-unknown[1][0] == 48) && 10 == unknown-#length-unknown[2]) && !(B == A)) && j == 0) && B == 0) && unknown-#memory_int-unknown[1][1] == 0) && 0 < unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || ((((((((((((0 <= k && 0 <= A) && i <= 2147483646) && A == 0) && 0 <= i) && n <= j) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && i <= 2147483646) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && !(j < n)) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || ((((((((((i == 0 && 0 <= A) && k == 0) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && i <= 2147483646) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && !(j < n)) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) || ((((((((((i == 0 && 0 <= A) && k == 0) && A == 0) && #NULL == 0) && 0 <= B) && j == 0) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0) - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && j <= 1000) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: ((((((((((((0 <= k && 0 <= A) && k < n) && 0 <= j) && i < n) && A == 0) && 0 <= i) && #NULL == 0) && j <= 1000) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: (((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: (((((((((((0 <= k && 0 <= A) && 0 <= j) && i < n) && A == 0) && 0 <= i) && k <= 2147483646) && #NULL == 0) && 0 <= B) && B == 0) && 0 <= unknown-#StackHeapBarrier-unknown) && n == 1000) && #NULL == 0 RESULT: Ultimate proved your program to be correct! [2022-11-25 23:54:34,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_04b7c4a7-b12f-4be7-b7a2-18e30b0ce782/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE