./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-tiling/pnr4.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/pnr4.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:39:44,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:39:44,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:39:44,869 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:39:44,870 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:39:44,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:39:44,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:39:44,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:39:44,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:39:44,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:39:44,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:39:44,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:39:44,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:39:44,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:39:44,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:39:44,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:39:44,907 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:39:44,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:39:44,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:39:44,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:39:44,922 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:39:44,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:39:44,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:39:44,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:39:44,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:39:44,940 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:39:44,940 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:39:44,942 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:39:44,943 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:39:44,945 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:39:44,945 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:39:44,947 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:39:44,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:39:44,950 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:39:44,956 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:39:44,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:39:44,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:39:44,957 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:39:44,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:39:44,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:39:44,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:39:44,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:39:45,010 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:39:45,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:39:45,011 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:39:45,012 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:39:45,013 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:39:45,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:39:45,020 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:39:45,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:39:45,021 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:39:45,021 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:39:45,022 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:39:45,022 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:39:45,023 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:39:45,023 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:39:45,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:39:45,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:39:45,024 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:39:45,024 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:39:45,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:39:45,026 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:39:45,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:39:45,026 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:39:45,026 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:39:45,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:39:45,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:39:45,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:39:45,028 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:39:45,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:39:45,028 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:39:45,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:39:45,029 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:39:45,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:39:45,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:39:45,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:39:45,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:39:45,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:39:45,030 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:39:45,031 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:39:45,031 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:39:45,031 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:39:45,031 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:39:45,032 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2f943c7ce97bf9be3e11b9d2df150d740ebe8f456342884d8ad0d40610fb008 [2021-11-21 01:39:45,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:39:45,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:39:45,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:39:45,476 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:39:45,476 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:39:45,478 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/array-tiling/pnr4.c [2021-11-21 01:39:45,554 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/data/94b592bef/979200c0fdc84813b1b1a82a35eba97e/FLAG897ee2220 [2021-11-21 01:39:46,202 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:39:46,207 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/sv-benchmarks/c/array-tiling/pnr4.c [2021-11-21 01:39:46,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/data/94b592bef/979200c0fdc84813b1b1a82a35eba97e/FLAG897ee2220 [2021-11-21 01:39:46,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/data/94b592bef/979200c0fdc84813b1b1a82a35eba97e [2021-11-21 01:39:46,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:39:46,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:39:46,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:39:46,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:39:46,551 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:39:46,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:46,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48d4a27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46, skipping insertion in model container [2021-11-21 01:39:46,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:46,563 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:39:46,583 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:39:46,833 WARN L230 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_cb7ed0dc-9133-4520-b147-820878446ac6/sv-benchmarks/c/array-tiling/pnr4.c[395,408] [2021-11-21 01:39:46,894 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:46,910 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:39:46,926 WARN L230 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_cb7ed0dc-9133-4520-b147-820878446ac6/sv-benchmarks/c/array-tiling/pnr4.c[395,408] [2021-11-21 01:39:46,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:39:46,956 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:39:46,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46 WrapperNode [2021-11-21 01:39:46,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:39:46,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:46,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:39:46,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:39:46,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:46,976 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,003 INFO L137 Inliner]: procedures = 17, calls = 30, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2021-11-21 01:39:47,003 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:39:47,004 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:39:47,004 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:39:47,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:39:47,015 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,031 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,033 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,036 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:39:47,037 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:39:47,037 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:39:47,037 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:39:47,039 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (1/1) ... [2021-11-21 01:39:47,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:39:47,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:47,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:39:47,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:39:47,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:39:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:39:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:39:47,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:39:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure ReadFromPort [2021-11-21 01:39:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadFromPort [2021-11-21 01:39:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:39:47,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:39:47,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:39:47,207 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:39:47,209 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:39:47,480 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:39:47,601 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:39:47,607 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-21 01:39:47,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:47 BoogieIcfgContainer [2021-11-21 01:39:47,611 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:39:47,613 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:39:47,613 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:39:47,619 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:39:47,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:39:46" (1/3) ... [2021-11-21 01:39:47,621 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de4898f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:47, skipping insertion in model container [2021-11-21 01:39:47,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:39:46" (2/3) ... [2021-11-21 01:39:47,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5de4898f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:39:47, skipping insertion in model container [2021-11-21 01:39:47,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:39:47" (3/3) ... [2021-11-21 01:39:47,625 INFO L111 eAbstractionObserver]: Analyzing ICFG pnr4.c [2021-11-21 01:39:47,633 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:39:47,633 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:39:47,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:39:47,723 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:39:47,724 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:39:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:39:47,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 01:39:47,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:47,753 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:47,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:47,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:47,761 INFO L85 PathProgramCache]: Analyzing trace with hash 747918148, now seen corresponding path program 1 times [2021-11-21 01:39:47,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:47,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727262726] [2021-11-21 01:39:47,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:47,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:47,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:48,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:39:48,243 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:48,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727262726] [2021-11-21 01:39:48,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727262726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:39:48,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:39:48,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:39:48,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737440626] [2021-11-21 01:39:48,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:39:48,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:39:48,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:39:48,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:39:48,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:48,290 INFO L87 Difference]: Start difference. First operand has 22 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 4 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) [2021-11-21 01:39:48,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:39:48,514 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2021-11-21 01:39:48,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:39:48,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 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 7 [2021-11-21 01:39:48,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:39:48,534 INFO L225 Difference]: With dead ends: 42 [2021-11-21 01:39:48,534 INFO L226 Difference]: Without dead ends: 28 [2021-11-21 01:39:48,538 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:39:48,543 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:39:48,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 20 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:39:48,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-21 01:39:48,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 20. [2021-11-21 01:39:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:39:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-11-21 01:39:48,605 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 7 [2021-11-21 01:39:48,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:39:48,606 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-21 01:39:48,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 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) [2021-11-21 01:39:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-11-21 01:39:48,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:39:48,609 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:39:48,609 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:39:48,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:39:48,610 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:39:48,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:39:48,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1318552209, now seen corresponding path program 1 times [2021-11-21 01:39:48,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:39:48,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821999581] [2021-11-21 01:39:48,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:48,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:39:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:49,661 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:39:49,662 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:39:49,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821999581] [2021-11-21 01:39:49,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821999581] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:39:49,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111124906] [2021-11-21 01:39:49,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:39:49,664 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:39:49,664 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:39:49,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:39:49,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:39:49,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:39:49,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-21 01:39:49,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:39:50,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:39:50,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 21 treesize of output 17 [2021-11-21 01:39:50,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 69 [2021-11-21 01:39:50,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:39:50,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 20 [2021-11-21 01:39:50,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,524 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:39:50,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 69 treesize of output 97 [2021-11-21 01:39:50,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 28 [2021-11-21 01:39:50,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 36 [2021-11-21 01:39:50,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,841 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:39:50,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 68 treesize of output 100 [2021-11-21 01:39:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 33 [2021-11-21 01:39:50,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:50,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 37 [2021-11-21 01:39:51,153 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:39:51,153 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:39:51,448 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:39:51,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 53 treesize of output 53 [2021-11-21 01:39:51,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-21 01:39:51,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-21 01:39:51,505 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:39:51,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 26 [2021-11-21 01:39:51,603 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:39:51,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111124906] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:39:51,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2057197875] [2021-11-21 01:39:51,630 INFO L159 IcfgInterpreter]: Started Sifa with 18 locations of interest [2021-11-21 01:39:51,630 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:39:51,635 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:39:51,643 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:39:51,643 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:39:51,867 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 01:39:51,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2021-11-21 01:39:51,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-21 01:39:53,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 194 [2021-11-21 01:39:53,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 114 treesize of output 61 [2021-11-21 01:39:53,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:53,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 128 treesize of output 67 [2021-11-21 01:39:55,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:55,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:39:55,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:39:55,840 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-21 01:39:55,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 11 case distinctions, treesize of input 393 treesize of output 451 [2021-11-21 01:39:56,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:56,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:56,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:56,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 193 treesize of output 100 [2021-11-21 01:39:57,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 166 treesize of output 91 [2021-11-21 01:39:57,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:39:57,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 97 [2021-11-21 01:40:04,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:04,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,112 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:04,121 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:40:04,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 19 case distinctions, treesize of input 411 treesize of output 439 [2021-11-21 01:40:04,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,481 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:04,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:04,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:04,507 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:40:04,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 27 case distinctions, treesize of input 534 treesize of output 439 [2021-11-21 01:40:05,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:05,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:05,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:05,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 26 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 267 treesize of output 130 [2021-11-21 01:40:41,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,574 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:41,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,587 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:41,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:41,597 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:40:41,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 12 select indices, 12 select index equivalence classes, 38 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 30 case distinctions, treesize of input 489 treesize of output 487 [2021-11-21 01:40:42,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,185 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:42,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,194 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:40:42,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,210 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:40:42,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 40 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 36 case distinctions, treesize of input 633 treesize of output 485 [2021-11-21 01:40:42,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:40:42,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 29 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 281 treesize of output 139 [2021-11-21 01:42:20,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:20,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:42:20,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:20,817 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:42:20,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 13 select indices, 13 select index equivalence classes, 48 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 42 case distinctions, treesize of input 577 treesize of output 545 [2021-11-21 01:42:21,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 33 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 151 [2021-11-21 01:42:21,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:21,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 33 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 275 treesize of output 142 [2021-11-21 01:42:22,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:42:22,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 33 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 154 [2021-11-21 01:43:21,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:43:21,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:43:24,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:24,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 89 [2021-11-21 01:43:24,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:24,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:43:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:24,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 33 [2021-11-21 01:43:32,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,032 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:43:32,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 137 [2021-11-21 01:43:32,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2021-11-21 01:43:32,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:32,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2021-11-21 01:43:52,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,848 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:43:52,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 195 [2021-11-21 01:43:52,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:52,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 52 [2021-11-21 01:43:53,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 52 [2021-11-21 01:43:53,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:43:53,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 64 [2021-11-21 01:44:45,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:44:45,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:44:47,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:47,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 89 [2021-11-21 01:44:47,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:47,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:44:47,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:47,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 28 [2021-11-21 01:44:56,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,148 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:44:56,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 137 [2021-11-21 01:44:56,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 106 [2021-11-21 01:44:56,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:44:56,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 40 [2021-11-21 01:44:57,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:44:57,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:45:02,754 INFO L197 IcfgInterpreter]: Interpreting procedure ReadFromPort with input of size 51 for LOIs [2021-11-21 01:45:02,796 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:45:04,527 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:45:04,527 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:45:04,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 7] total 20 [2021-11-21 01:45:04,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315645244] [2021-11-21 01:45:04,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:45:04,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 01:45:04,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:45:04,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 01:45:04,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2021-11-21 01:45:04,533 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 20 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-21 01:45:05,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:45:05,415 INFO L93 Difference]: Finished difference Result 49 states and 64 transitions. [2021-11-21 01:45:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:45:05,416 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) Word has length 24 [2021-11-21 01:45:05,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:45:05,418 INFO L225 Difference]: With dead ends: 49 [2021-11-21 01:45:05,418 INFO L226 Difference]: Without dead ends: 47 [2021-11-21 01:45:05,420 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 47 SyntacticMatches, 4 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 678 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=338, Invalid=1732, Unknown=0, NotChecked=0, Total=2070 [2021-11-21 01:45:05,422 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 63 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:45:05,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 69 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:45:05,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-21 01:45:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 28. [2021-11-21 01:45:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:45:05,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-11-21 01:45:05,434 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 24 [2021-11-21 01:45:05,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:45:05,435 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-11-21 01:45:05,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.6) internal successors, (32), 20 states have internal predecessors, (32), 8 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 8 states have call predecessors, (12), 8 states have call successors, (12) [2021-11-21 01:45:05,436 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-11-21 01:45:05,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:45:05,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:45:05,437 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:45:05,479 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:45:05,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-21 01:45:05,664 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:45:05,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:45:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1490800573, now seen corresponding path program 1 times [2021-11-21 01:45:05,665 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:45:05,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131602446] [2021-11-21 01:45:05,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:05,665 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:45:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:06,117 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:45:06,119 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:45:06,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131602446] [2021-11-21 01:45:06,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131602446] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:45:06,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535042908] [2021-11-21 01:45:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:45:06,125 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:45:06,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:45:06,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:45:06,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cb7ed0dc-9133-4520-b147-820878446ac6/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:45:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:45:06,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-21 01:45:06,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:45:06,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 treesize of output 14 [2021-11-21 01:45:06,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:06,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2021-11-21 01:45:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:45:06,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:45:06,869 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:45:06,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 55 [2021-11-21 01:45:06,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-21 01:45:06,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 4 [2021-11-21 01:45:06,943 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:45:06,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 28 [2021-11-21 01:45:07,106 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-21 01:45:07,107 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535042908] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:45:07,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1826560053] [2021-11-21 01:45:07,129 INFO L159 IcfgInterpreter]: Started Sifa with 19 locations of interest [2021-11-21 01:45:07,129 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:45:07,130 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:45:07,130 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:45:07,130 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:45:07,306 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 01:45:07,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 32 treesize of output 53 [2021-11-21 01:45:07,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 32 [2021-11-21 01:45:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 9 select indices, 9 select index equivalence classes, 23 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 194 [2021-11-21 01:45:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 99 treesize of output 50 [2021-11-21 01:45:08,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:08,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 23 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 113 treesize of output 56 [2021-11-21 01:45:10,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,092 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:10,136 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-21 01:45:10,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 10 select indices, 10 select index equivalence classes, 21 disjoint index pairs (out of 45 index pairs), introduced 12 new quantified variables, introduced 11 case distinctions, treesize of input 393 treesize of output 451 [2021-11-21 01:45:10,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 173 treesize of output 94 [2021-11-21 01:45:10,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:10,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 200 treesize of output 103 [2021-11-21 01:45:11,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:11,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 11 select indices, 11 select index equivalence classes, 24 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 168 treesize of output 94 [2021-11-21 01:45:16,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:16,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:16,815 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:45:16,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 11 select indices, 11 select index equivalence classes, 28 disjoint index pairs (out of 55 index pairs), introduced 13 new quantified variables, introduced 19 case distinctions, treesize of input 411 treesize of output 439 [2021-11-21 01:45:17,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 26 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 112 [2021-11-21 01:45:17,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:17,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 26 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 235 treesize of output 121 [2021-11-21 01:45:28,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,352 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:28,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,362 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:28,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,374 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:45:28,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 12 select indices, 12 select index equivalence classes, 38 disjoint index pairs (out of 66 index pairs), introduced 14 new quantified variables, introduced 30 case distinctions, treesize of input 489 treesize of output 487 [2021-11-21 01:45:28,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 29 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 115 [2021-11-21 01:45:28,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:28,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 13 select indices, 13 select index equivalence classes, 29 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 327 treesize of output 154 [2021-11-21 01:45:52,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:52,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,680 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:52,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:52,694 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:45:52,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 13 select indices, 13 select index equivalence classes, 48 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 42 case distinctions, treesize of input 577 treesize of output 545 [2021-11-21 01:45:53,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,482 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:53,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,493 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:45:53,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:53,509 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:45:53,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 49 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 45 case distinctions, treesize of input 742 treesize of output 521 [2021-11-21 01:45:54,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:45:54,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 33 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 0 case distinctions, treesize of input 309 treesize of output 154 [2021-11-21 01:49:44,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:49:44,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:49:46,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:46,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 89 [2021-11-21 01:49:46,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:46,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:49:46,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:46,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 28 [2021-11-21 01:49:46,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:46,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 19 [2021-11-21 01:49:55,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,358 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:49:55,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 137 [2021-11-21 01:49:55,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 28 [2021-11-21 01:49:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:55,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 52 [2021-11-21 01:50:24,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,844 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:50:24,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 251 treesize of output 195 [2021-11-21 01:50:24,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:24,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 52 [2021-11-21 01:50:25,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 154 treesize of output 64 [2021-11-21 01:51:39,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:51:39,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:51:41,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:41,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 89 [2021-11-21 01:51:41,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:41,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:51:41,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:41,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 19 [2021-11-21 01:51:42,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:42,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 28 [2021-11-21 01:51:50,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,229 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:51:50,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 163 treesize of output 137 [2021-11-21 01:51:50,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 28 [2021-11-21 01:51:50,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:51:50,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 187 treesize of output 70 [2021-11-21 01:51:52,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 16 treesize of output 12 [2021-11-21 01:51:53,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12