./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i --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_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/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_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/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_8507cb0e-70c5-43b8-91af-42649ba16117/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 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:09:04,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:09:04,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:09:04,894 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:09:04,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:09:04,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:09:04,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:09:04,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:09:04,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:09:04,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:09:04,914 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:09:04,915 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:09:04,916 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:09:04,918 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:09:04,921 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:09:04,930 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:09:04,932 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:09:04,933 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:09:04,935 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:09:04,943 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:09:04,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:09:04,947 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:09:04,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:09:04,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:09:04,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:09:04,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:09:04,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:09:04,963 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:09:04,964 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:09:04,965 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:09:04,965 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:09:04,966 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:09:04,968 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:09:04,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:09:04,971 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:09:04,971 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:09:04,972 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:09:04,972 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:09:04,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:09:04,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:09:04,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:09:04,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:09:05,016 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:09:05,016 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:09:05,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:09:05,017 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:09:05,021 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:09:05,022 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:09:05,022 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:09:05,023 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:09:05,023 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:09:05,023 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:09:05,024 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:09:05,025 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:09:05,025 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:09:05,025 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:09:05,025 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:09:05,026 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:09:05,026 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:09:05,026 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:09:05,028 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:09:05,029 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:09:05,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:09:05,035 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:09:05,035 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:09:05,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:09:05,037 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:09:05,037 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:09:05,039 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:09:05,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:09:05,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:09:05,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:09:05,040 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:09:05,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:09:05,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:09:05,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:09:05,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:09:05,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:09:05,042 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:09:05,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:09:05,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:09:05,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:09:05,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:09:05,043 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_8507cb0e-70c5-43b8-91af-42649ba16117/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1447114af8a4b489e3ec713f117f7a92d9cc93e5175903910b61bfe512c41aed [2021-11-21 01:09:05,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:09:05,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:09:05,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:09:05,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:09:05,332 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:09:05,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2021-11-21 01:09:05,412 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/data/cd56cb8d5/55f580d59b19447cb64e8e77eb6ccb5e/FLAGcdec07365 [2021-11-21 01:09:06,073 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:09:06,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i [2021-11-21 01:09:06,103 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/data/cd56cb8d5/55f580d59b19447cb64e8e77eb6ccb5e/FLAGcdec07365 [2021-11-21 01:09:06,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/data/cd56cb8d5/55f580d59b19447cb64e8e77eb6ccb5e [2021-11-21 01:09:06,336 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:09:06,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:09:06,339 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:09:06,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:09:06,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:09:06,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:09:06" (1/1) ... [2021-11-21 01:09:06,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599a831b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:06, skipping insertion in model container [2021-11-21 01:09:06,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:09:06" (1/1) ... [2021-11-21 01:09:06,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:09:06,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:09:06,840 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_8507cb0e-70c5-43b8-91af-42649ba16117/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2021-11-21 01:09:06,987 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:09:07,006 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:09:07,054 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_8507cb0e-70c5-43b8-91af-42649ba16117/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test1-2.i[33021,33034] [2021-11-21 01:09:07,096 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:09:07,143 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:09:07,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07 WrapperNode [2021-11-21 01:09:07,143 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:09:07,144 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:09:07,144 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:09:07,145 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:09:07,153 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,257 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 776 [2021-11-21 01:09:07,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:09:07,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:09:07,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:09:07,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:09:07,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,355 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:09:07,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:09:07,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:09:07,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:09:07,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (1/1) ... [2021-11-21 01:09:07,380 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:09:07,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:09:07,430 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:09:07,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:09:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:09:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:09:07,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:09:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:09:07,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:09:07,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:09:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:09:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:09:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:09:07,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:09:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:09:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:09:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:09:07,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:09:07,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:09:07,675 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:09:07,677 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:09:08,562 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:09:08,853 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:09:08,854 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-21 01:09:08,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:08 BoogieIcfgContainer [2021-11-21 01:09:08,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:09:08,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:09:08,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:09:08,866 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:09:08,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:09:06" (1/3) ... [2021-11-21 01:09:08,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df31944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:08, skipping insertion in model container [2021-11-21 01:09:08,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:09:07" (2/3) ... [2021-11-21 01:09:08,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df31944 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:09:08, skipping insertion in model container [2021-11-21 01:09:08,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:09:08" (3/3) ... [2021-11-21 01:09:08,870 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test1-2.i [2021-11-21 01:09:08,876 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:09:08,877 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:09:08,937 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:09:08,943 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 01:09:08,943 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:09:08,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:09:08,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 01:09:08,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:08,968 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:08,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:08,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:08,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1739953547, now seen corresponding path program 1 times [2021-11-21 01:09:08,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:08,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666648053] [2021-11-21 01:09:08,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:08,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:09,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:09,156 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 01:09:09,156 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:09,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666648053] [2021-11-21 01:09:09,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666648053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:09,159 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:09:09,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:09:09,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299081602] [2021-11-21 01:09:09,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:09,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:09:09,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:09,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:09:09,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:09,203 INFO L87 Difference]: Start difference. First operand has 95 states, 78 states have (on average 1.7820512820512822) internal successors, (139), 89 states have internal predecessors, (139), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:09:10,727 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:09:10,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:10,730 INFO L93 Difference]: Finished difference Result 237 states and 426 transitions. [2021-11-21 01:09:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:09:10,757 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-21 01:09:10,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:10,764 INFO L225 Difference]: With dead ends: 237 [2021-11-21 01:09:10,764 INFO L226 Difference]: Without dead ends: 128 [2021-11-21 01:09:10,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:09:10,771 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 49 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:10,774 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 217 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:09:10,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-21 01:09:10,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-21 01:09:10,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:09:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-21 01:09:10,831 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-21 01:09:10,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:10,831 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-21 01:09:10,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:09:10,832 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-21 01:09:10,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:09:10,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:10,835 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:10,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:09:10,835 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:10,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash -976039302, now seen corresponding path program 1 times [2021-11-21 01:09:10,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:10,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397061009] [2021-11-21 01:09:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:10,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:10,854 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:09:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1979866197] [2021-11-21 01:09:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:10,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:09:10,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:09:10,856 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:09:10,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:09:11,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:11,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:11,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:09:11,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:09:11,319 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:11,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397061009] [2021-11-21 01:09:11,323 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:09:11,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979866197] [2021-11-21 01:09:11,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979866197] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:09:11,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1912506034] [2021-11-21 01:09:11,363 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-21 01:09:11,367 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:09:11,372 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:09:11,378 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:09:11,379 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:09:11,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:11,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:11,592 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:09:11,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:09:11,653 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:09:11,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:09:11,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:11,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:11,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:11,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:11,784 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:09:11,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:09:12,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:12,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:09:12,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:12,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:09:13,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:13,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:13,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:13,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:09:13,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:13,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:09:14,125 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:09:14,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1912506034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:14,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:09:14,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-21 01:09:14,640 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000295947] [2021-11-21 01:09:14,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:14,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:09:14,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:09:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:09:14,643 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:09:16,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:16,545 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-21 01:09:16,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:09:16,551 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-21 01:09:16,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:16,552 INFO L225 Difference]: With dead ends: 173 [2021-11-21 01:09:16,553 INFO L226 Difference]: Without dead ends: 94 [2021-11-21 01:09:16,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:09:16,555 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 8 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:16,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 333 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 01:09:16,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-21 01:09:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-21 01:09:16,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:09:16,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-21 01:09:16,571 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-21 01:09:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:16,571 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-21 01:09:16,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:09:16,572 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-21 01:09:16,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:09:16,574 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:16,574 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:16,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:09:16,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:09:16,788 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:16,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:16,789 INFO L85 PathProgramCache]: Analyzing trace with hash 720340601, now seen corresponding path program 1 times [2021-11-21 01:09:16,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:16,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294142602] [2021-11-21 01:09:16,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:16,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:16,803 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:09:16,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992694356] [2021-11-21 01:09:16,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:16,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:09:16,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:09:16,805 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:09:16,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:09:16,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:16,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:17,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:17,115 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:09:17,115 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:17,244 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:09:17,247 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:17,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294142602] [2021-11-21 01:09:17,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:09:17,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992694356] [2021-11-21 01:09:17,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992694356] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:09:17,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1581058803] [2021-11-21 01:09:17,254 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:09:17,254 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:09:17,255 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:09:17,257 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:09:17,258 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:09:17,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:17,350 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:17,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:17,362 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 01:09:17,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-21 01:09:17,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:17,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:17,417 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:09:17,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:09:17,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:17,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:17,488 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:09:17,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:09:18,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:18,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:18,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:09:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:09:18,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:09:18,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:18,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,827 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:09:18,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:09:18,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 100 treesize of output 105 [2021-11-21 01:09:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:18,962 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:09:18,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:09:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,033 INFO L354 Elim1Store]: treesize reduction 176, result has 10.7 percent of original size [2021-11-21 01:09:19,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:09:19,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:19,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 46 [2021-11-21 01:09:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:20,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:20,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:21,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:09:21,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:09:21,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:21,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:09:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:21,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:21,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,337 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:09:21,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:09:21,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 100 treesize of output 105 [2021-11-21 01:09:21,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,495 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:09:21,496 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:09:21,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,545 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:09:21,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:09:21,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:21,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 46 [2021-11-21 01:09:21,806 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 93 for LOIs [2021-11-21 01:09:22,034 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:09:23,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1581058803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:09:23,028 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:09:23,028 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-21 01:09:23,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008769065] [2021-11-21 01:09:23,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:09:23,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-21 01:09:23,029 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:09:23,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-21 01:09:23,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:09:23,030 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:09:24,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:09:24,812 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-21 01:09:24,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-21 01:09:24,817 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-21 01:09:24,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:09:24,819 INFO L225 Difference]: With dead ends: 175 [2021-11-21 01:09:24,819 INFO L226 Difference]: Without dead ends: 96 [2021-11-21 01:09:24,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-21 01:09:24,821 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 12 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 110 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:09:24,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 444 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 132 Invalid, 0 Unknown, 110 Unchecked, 1.8s Time] [2021-11-21 01:09:24,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-21 01:09:24,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-21 01:09:24,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:09:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-21 01:09:24,838 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-21 01:09:24,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:09:24,838 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-21 01:09:24,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:09:24,839 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-21 01:09:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:09:24,840 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:09:24,841 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:09:24,864 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:09:25,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:09:25,044 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:09:25,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:09:25,045 INFO L85 PathProgramCache]: Analyzing trace with hash 659673767, now seen corresponding path program 1 times [2021-11-21 01:09:25,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:09:25,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381118536] [2021-11-21 01:09:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:25,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:09:25,053 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:09:25,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [108789744] [2021-11-21 01:09:25,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:09:25,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:09:25,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:09:25,055 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:09:25,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8507cb0e-70c5-43b8-91af-42649ba16117/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:09:25,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:09:25,271 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:09:25,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:09:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:09:25,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:09:25,479 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:09:25,479 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:09:25,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381118536] [2021-11-21 01:09:25,480 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:09:25,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108789744] [2021-11-21 01:09:25,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108789744] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:09:25,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [340147432] [2021-11-21 01:09:25,483 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-21 01:09:25,483 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:09:25,484 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:09:25,484 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:09:25,484 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:09:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:25,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:25,578 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:09:25,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-21 01:09:25,618 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:09:25,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:09:25,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:25,638 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:25,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-21 01:09:25,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:25,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:09:26,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:26,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:09:26,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:09:26,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:09:26,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:09:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-21 01:09:26,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,863 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:09:26,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:09:26,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 100 treesize of output 105 [2021-11-21 01:09:26,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,997 INFO L354 Elim1Store]: treesize reduction 146, result has 25.9 percent of original size [2021-11-21 01:09:26,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 117 treesize of output 150 [2021-11-21 01:09:27,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,042 INFO L354 Elim1Store]: treesize reduction 86, result has 15.7 percent of original size [2021-11-21 01:09:27,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 135 treesize of output 143 [2021-11-21 01:09:27,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 41 treesize of output 46 [2021-11-21 01:09:27,517 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 13 treesize of output 9 [2021-11-21 01:09:27,523 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 11 treesize of output 7 [2021-11-21 01:09:27,530 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 11 treesize of output 7 [2021-11-21 01:09:27,573 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 01:09:27,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 01:09:27,596 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:09:27,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 01:09:27,618 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 01:09:27,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 01:09:27,719 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 01:09:27,726 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 14 treesize of output 10 [2021-11-21 01:09:27,733 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 14 treesize of output 10 [2021-11-21 01:09:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:09:27,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,837 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 68 treesize of output 26 [2021-11-21 01:09:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,935 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 46 treesize of output 16 [2021-11-21 01:09:28,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,151 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 68 treesize of output 26 [2021-11-21 01:09:28,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:09:28,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:28,264 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 46 treesize of output 16 [2021-11-21 01:09:36,386 WARN L227 SmtUtils]: Spent 8.01s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:09:36,386 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:09:36,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2837 treesize of output 2314 [2021-11-21 01:09:36,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:44,378 WARN L227 SmtUtils]: Spent 7.96s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:09:44,378 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:09:44,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2938 treesize of output 2656 [2021-11-21 01:09:54,810 WARN L227 SmtUtils]: Spent 10.34s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:09:54,811 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:09:54,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2906 treesize of output 2676 [2021-11-21 01:09:56,416 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:09:56,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:09:57,263 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:09:57,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:09:59,004 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:59,366 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:09:59,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:09:59,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:10:00,138 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:10:00,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61