./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/heap-manipulation/tree-4.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/tree-4.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 05:09:51,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:09:51,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:09:51,327 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:09:51,327 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:09:51,328 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:09:51,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:09:51,331 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:09:51,333 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:09:51,334 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:09:51,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:09:51,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:09:51,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:09:51,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:09:51,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:09:51,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:09:51,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:09:51,340 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:09:51,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:09:51,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:09:51,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:09:51,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:09:51,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:09:51,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:09:51,362 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:09:51,362 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:09:51,362 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:09:51,363 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:09:51,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:09:51,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:09:51,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:09:51,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:09:51,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:09:51,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:09:51,366 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:09:51,366 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:09:51,367 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:09:51,367 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:09:51,367 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:09:51,368 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:09:51,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:09:51,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/config/svcomp-MemCleanup-32bit-Taipan_Default.epf [2022-12-14 05:09:51,384 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:09:51,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:09:51,384 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:09:51,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:09:51,392 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:09:51,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:09:51,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:09:51,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:09:51,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:09:51,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:09:51,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:09:51,393 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:09:51,393 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-14 05:09:51,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-14 05:09:51,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:09:51,394 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:09:51,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:09:51,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:09:51,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 93cf6e13715dcd5309cb599b4358d41a64464f02c52b3716bc554a9d0e833f5e [2022-12-14 05:09:51,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:09:51,581 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:09:51,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:09:51,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:09:51,585 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:09:51,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/heap-manipulation/tree-4.i [2022-12-14 05:09:54,200 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:09:54,388 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:09:54,389 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/sv-benchmarks/c/heap-manipulation/tree-4.i [2022-12-14 05:09:54,399 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/data/fa4950cae/5e08dae708ee48d587e4f14fac2f1ce4/FLAGc17d680cb [2022-12-14 05:09:54,409 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/data/fa4950cae/5e08dae708ee48d587e4f14fac2f1ce4 [2022-12-14 05:09:54,411 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:09:54,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:09:54,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:09:54,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:09:54,416 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:09:54,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32279dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54, skipping insertion in model container [2022-12-14 05:09:54,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:09:54,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:09:54,654 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/sv-benchmarks/c/heap-manipulation/tree-4.i[22626,22639] [2022-12-14 05:09:54,670 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:09:54,677 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:09:54,696 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/sv-benchmarks/c/heap-manipulation/tree-4.i[22626,22639] [2022-12-14 05:09:54,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:09:54,720 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:09:54,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54 WrapperNode [2022-12-14 05:09:54,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:09:54,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:09:54,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:09:54,721 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:09:54,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,751 INFO L138 Inliner]: procedures = 122, calls = 44, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 155 [2022-12-14 05:09:54,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:09:54,751 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:09:54,751 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:09:54,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:09:54,759 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,759 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,761 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,761 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,767 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,770 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,771 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,772 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:09:54,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:09:54,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:09:54,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:09:54,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (1/1) ... [2022-12-14 05:09:54,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:09:54,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:09:54,798 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:09:54,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:09:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 05:09:54,825 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2022-12-14 05:09:54,825 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:09:54,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:09:54,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:09:54,916 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:09:54,918 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:09:55,230 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:09:55,272 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:09:55,272 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-12-14 05:09:55,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:09:55 BoogieIcfgContainer [2022-12-14 05:09:55,275 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:09:55,277 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:09:55,277 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:09:55,280 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:09:55,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:09:54" (1/3) ... [2022-12-14 05:09:55,281 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73505bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:09:55, skipping insertion in model container [2022-12-14 05:09:55,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:09:54" (2/3) ... [2022-12-14 05:09:55,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73505bf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:09:55, skipping insertion in model container [2022-12-14 05:09:55,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:09:55" (3/3) ... [2022-12-14 05:09:55,283 INFO L112 eAbstractionObserver]: Analyzing ICFG tree-4.i [2022-12-14 05:09:55,310 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:09:55,311 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 65 error locations. [2022-12-14 05:09:55,348 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:09:55,354 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1250646c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:09:55,354 INFO L358 AbstractCegarLoop]: Starting to check reachability of 65 error locations. [2022-12-14 05:09:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand has 130 states, 60 states have (on average 2.45) internal successors, (147), 128 states have internal predecessors, (147), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 05:09:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:09:55,363 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:55,363 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:09:55,364 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:55,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:55,368 INFO L85 PathProgramCache]: Analyzing trace with hash 9909855, now seen corresponding path program 1 times [2022-12-14 05:09:55,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:55,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [683248271] [2022-12-14 05:09:55,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:55,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:55,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:55,513 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:55,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [683248271] [2022-12-14 05:09:55,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [683248271] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:55,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:55,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:09:55,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089171138] [2022-12-14 05:09:55,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:55,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:09:55,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:55,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:09:55,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:55,543 INFO L87 Difference]: Start difference. First operand has 130 states, 60 states have (on average 2.45) internal successors, (147), 128 states have internal predecessors, (147), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:55,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:55,729 INFO L93 Difference]: Finished difference Result 204 states and 228 transitions. [2022-12-14 05:09:55,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:09:55,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:09:55,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:55,737 INFO L225 Difference]: With dead ends: 204 [2022-12-14 05:09:55,737 INFO L226 Difference]: Without dead ends: 202 [2022-12-14 05:09:55,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:55,741 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 118 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:55,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 201 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:09:55,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-12-14 05:09:55,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 126. [2022-12-14 05:09:55,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 66 states have (on average 2.121212121212121) internal successors, (140), 124 states have internal predecessors, (140), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:55,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 143 transitions. [2022-12-14 05:09:55,772 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 143 transitions. Word has length 4 [2022-12-14 05:09:55,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:55,773 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 143 transitions. [2022-12-14 05:09:55,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:55,773 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 143 transitions. [2022-12-14 05:09:55,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-12-14 05:09:55,773 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:55,773 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-12-14 05:09:55,774 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:09:55,774 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:55,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:55,774 INFO L85 PathProgramCache]: Analyzing trace with hash 9909856, now seen corresponding path program 1 times [2022-12-14 05:09:55,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:55,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245133861] [2022-12-14 05:09:55,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:55,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:55,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:55,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:55,846 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:55,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245133861] [2022-12-14 05:09:55,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245133861] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:55,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:55,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:09:55,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844376914] [2022-12-14 05:09:55,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:55,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:09:55,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:55,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:09:55,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:55,849 INFO L87 Difference]: Start difference. First operand 126 states and 143 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:56,007 INFO L93 Difference]: Finished difference Result 216 states and 242 transitions. [2022-12-14 05:09:56,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:09:56,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-12-14 05:09:56,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:56,009 INFO L225 Difference]: With dead ends: 216 [2022-12-14 05:09:56,009 INFO L226 Difference]: Without dead ends: 216 [2022-12-14 05:09:56,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,010 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 112 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:56,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 234 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:09:56,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-12-14 05:09:56,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 134. [2022-12-14 05:09:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 77 states have (on average 2.0259740259740258) internal successors, (156), 132 states have internal predecessors, (156), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 159 transitions. [2022-12-14 05:09:56,017 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 159 transitions. Word has length 4 [2022-12-14 05:09:56,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:56,017 INFO L495 AbstractCegarLoop]: Abstraction has 134 states and 159 transitions. [2022-12-14 05:09:56,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,018 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 159 transitions. [2022-12-14 05:09:56,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-14 05:09:56,018 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:56,018 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-14 05:09:56,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 05:09:56,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:56,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:56,019 INFO L85 PathProgramCache]: Analyzing trace with hash 306920881, now seen corresponding path program 1 times [2022-12-14 05:09:56,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:56,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958296142] [2022-12-14 05:09:56,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,044 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:56,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958296142] [2022-12-14 05:09:56,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958296142] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:56,045 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:56,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:09:56,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423104224] [2022-12-14 05:09:56,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:56,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:09:56,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:56,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:09:56,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,047 INFO L87 Difference]: Start difference. First operand 134 states and 159 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:56,098 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2022-12-14 05:09:56,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:09:56,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-14 05:09:56,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:56,100 INFO L225 Difference]: With dead ends: 131 [2022-12-14 05:09:56,100 INFO L226 Difference]: Without dead ends: 131 [2022-12-14 05:09:56,100 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,101 INFO L413 NwaCegarLoop]: 110 mSDtfsCounter, 82 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:56,102 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 129 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:09:56,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2022-12-14 05:09:56,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2022-12-14 05:09:56,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 75 states have (on average 1.9866666666666666) internal successors, (149), 128 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2022-12-14 05:09:56,107 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 5 [2022-12-14 05:09:56,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:56,108 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2022-12-14 05:09:56,108 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,108 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2022-12-14 05:09:56,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:09:56,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:56,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:09:56,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-14 05:09:56,109 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:56,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:56,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1128257923, now seen corresponding path program 1 times [2022-12-14 05:09:56,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:56,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102211604] [2022-12-14 05:09:56,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,152 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:56,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102211604] [2022-12-14 05:09:56,152 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102211604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:56,152 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:56,152 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 05:09:56,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485347232] [2022-12-14 05:09:56,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:56,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:09:56,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:56,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:09:56,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,153 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:56,195 INFO L93 Difference]: Finished difference Result 210 states and 241 transitions. [2022-12-14 05:09:56,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:09:56,195 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 05:09:56,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:56,197 INFO L225 Difference]: With dead ends: 210 [2022-12-14 05:09:56,197 INFO L226 Difference]: Without dead ends: 210 [2022-12-14 05:09:56,197 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,198 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 85 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:56,198 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 214 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:09:56,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-12-14 05:09:56,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 133. [2022-12-14 05:09:56,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 78 states have (on average 1.9487179487179487) internal successors, (152), 131 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2022-12-14 05:09:56,203 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 7 [2022-12-14 05:09:56,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:56,204 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2022-12-14 05:09:56,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2022-12-14 05:09:56,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 05:09:56,204 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:56,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:09:56,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-14 05:09:56,204 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:56,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:56,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1401369407, now seen corresponding path program 1 times [2022-12-14 05:09:56,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:56,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237018840] [2022-12-14 05:09:56,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,222 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:56,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237018840] [2022-12-14 05:09:56,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237018840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:56,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:56,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 05:09:56,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410759250] [2022-12-14 05:09:56,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:56,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:09:56,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:56,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:09:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,224 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:56,320 INFO L93 Difference]: Finished difference Result 207 states and 238 transitions. [2022-12-14 05:09:56,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:09:56,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-12-14 05:09:56,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:56,321 INFO L225 Difference]: With dead ends: 207 [2022-12-14 05:09:56,321 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 05:09:56,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:09:56,322 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 75 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:56,322 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 151 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:09:56,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 05:09:56,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 135. [2022-12-14 05:09:56,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 80 states have (on average 1.925) internal successors, (154), 133 states have internal predecessors, (154), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 157 transitions. [2022-12-14 05:09:56,326 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 157 transitions. Word has length 7 [2022-12-14 05:09:56,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:56,327 INFO L495 AbstractCegarLoop]: Abstraction has 135 states and 157 transitions. [2022-12-14 05:09:56,327 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,327 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 157 transitions. [2022-12-14 05:09:56,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:09:56,327 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:56,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:09:56,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-14 05:09:56,327 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1903641692, now seen corresponding path program 1 times [2022-12-14 05:09:56,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:56,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862903659] [2022-12-14 05:09:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:56,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862903659] [2022-12-14 05:09:56,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862903659] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:56,373 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:09:56,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:09:56,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123728578] [2022-12-14 05:09:56,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:56,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 05:09:56,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:56,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 05:09:56,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 05:09:56,374 INFO L87 Difference]: Start difference. First operand 135 states and 157 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:56,429 INFO L93 Difference]: Finished difference Result 139 states and 159 transitions. [2022-12-14 05:09:56,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:09:56,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-14 05:09:56,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:56,431 INFO L225 Difference]: With dead ends: 139 [2022-12-14 05:09:56,431 INFO L226 Difference]: Without dead ends: 136 [2022-12-14 05:09:56,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:09:56,432 INFO L413 NwaCegarLoop]: 109 mSDtfsCounter, 7 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:56,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 321 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:09:56,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-12-14 05:09:56,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 132. [2022-12-14 05:09:56,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 77 states have (on average 1.948051948051948) internal successors, (150), 130 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 153 transitions. [2022-12-14 05:09:56,438 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 153 transitions. Word has length 9 [2022-12-14 05:09:56,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:56,438 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 153 transitions. [2022-12-14 05:09:56,438 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:56,438 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 153 transitions. [2022-12-14 05:09:56,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:09:56,438 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:56,438 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-12-14 05:09:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-14 05:09:56,439 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:09:56,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:09:56,439 INFO L85 PathProgramCache]: Analyzing trace with hash 868505118, now seen corresponding path program 1 times [2022-12-14 05:09:56,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:09:56,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146684415] [2022-12-14 05:09:56,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:09:56,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,576 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:09:56,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146684415] [2022-12-14 05:09:56,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146684415] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:09:56,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1689792188] [2022-12-14 05:09:56,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:09:56,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:09:56,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:09:56,578 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:09:56,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 05:09:56,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:09:56,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 05:09:56,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:09:56,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 05:09:56,727 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:09:56,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:09:56,740 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:09:56,860 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:09:56,860 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1689792188] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:09:56,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [497482439] [2022-12-14 05:09:56,878 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:09:56,878 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:09:56,882 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:09:56,887 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:09:56,887 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:09:56,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:56,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:56,939 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:09:56,961 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:09:56,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:56,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:09:56,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:09:57,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,005 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:09:57,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,014 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:09:57,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:09:57,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:09:57,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:09:57,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:09:57,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,132 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:09:57,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,156 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:09:57,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,168 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:09:57,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,181 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 33 [2022-12-14 05:09:57,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,214 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:09:57,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,231 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:09:57,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,247 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 33 [2022-12-14 05:09:57,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,274 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:09:57,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:09:57,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:09:57,435 INFO L321 Elim1Store]: treesize reduction 58, result has 21.6 percent of original size [2022-12-14 05:09:57,435 INFO L350 Elim1Store]: Elim1 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 5 case distinctions, treesize of input 230 treesize of output 232 [2022-12-14 05:09:57,546 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:09:57,546 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 210 [2022-12-14 05:09:57,565 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:09:57,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 208 treesize of output 210 [2022-12-14 05:09:57,585 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 05:09:57,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 212 treesize of output 198 [2022-12-14 05:09:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,631 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:09:57,645 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 05:09:57,646 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 217 treesize of output 222 [2022-12-14 05:09:57,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,659 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:09:57,671 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 05:09:57,671 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 217 treesize of output 222 [2022-12-14 05:09:57,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:09:57,690 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:09:57,690 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 216 treesize of output 198 [2022-12-14 05:09:57,754 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:09:59,259 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSifa [497482439] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:09:59,260 INFO L184 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:09:59,260 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4, 3, 4] total 14 [2022-12-14 05:09:59,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399709574] [2022-12-14 05:09:59,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:09:59,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:09:59,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:09:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:09:59,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-12-14 05:09:59,263 INFO L87 Difference]: Start difference. First operand 132 states and 153 transitions. Second operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:09:59,906 INFO L93 Difference]: Finished difference Result 219 states and 253 transitions. [2022-12-14 05:09:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:09:59,907 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 05:09:59,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:09:59,908 INFO L225 Difference]: With dead ends: 219 [2022-12-14 05:09:59,908 INFO L226 Difference]: Without dead ends: 219 [2022-12-14 05:09:59,908 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2022-12-14 05:09:59,909 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 81 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-14 05:09:59,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 150 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-14 05:09:59,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2022-12-14 05:09:59,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 140. [2022-12-14 05:09:59,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 85 states have (on average 1.8823529411764706) internal successors, (160), 138 states have internal predecessors, (160), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:59,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 163 transitions. [2022-12-14 05:09:59,915 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 163 transitions. Word has length 14 [2022-12-14 05:09:59,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:09:59,915 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 163 transitions. [2022-12-14 05:09:59,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:09:59,916 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 163 transitions. [2022-12-14 05:09:59,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:09:59,916 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:09:59,916 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:09:59,921 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 05:10:00,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:00,118 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:00,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:00,119 INFO L85 PathProgramCache]: Analyzing trace with hash 595393634, now seen corresponding path program 1 times [2022-12-14 05:10:00,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:00,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386619736] [2022-12-14 05:10:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:00,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:00,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:00,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:00,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:00,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386619736] [2022-12-14 05:10:00,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1386619736] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:00,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:00,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:10:00,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780557521] [2022-12-14 05:10:00,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:00,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:10:00,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:00,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:10:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:10:00,189 INFO L87 Difference]: Start difference. First operand 140 states and 163 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:00,231 INFO L93 Difference]: Finished difference Result 147 states and 160 transitions. [2022-12-14 05:10:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:10:00,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-14 05:10:00,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:00,232 INFO L225 Difference]: With dead ends: 147 [2022-12-14 05:10:00,232 INFO L226 Difference]: Without dead ends: 147 [2022-12-14 05:10:00,232 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:10:00,233 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 24 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:00,233 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 188 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:10:00,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-14 05:10:00,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 139. [2022-12-14 05:10:00,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 84 states have (on average 1.869047619047619) internal successors, (157), 137 states have internal predecessors, (157), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 160 transitions. [2022-12-14 05:10:00,238 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 160 transitions. Word has length 14 [2022-12-14 05:10:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:00,238 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 160 transitions. [2022-12-14 05:10:00,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 160 transitions. [2022-12-14 05:10:00,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 05:10:00,239 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:00,239 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:00,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-14 05:10:00,239 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:00,240 INFO L85 PathProgramCache]: Analyzing trace with hash 552344245, now seen corresponding path program 1 times [2022-12-14 05:10:00,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:00,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052360670] [2022-12-14 05:10:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:00,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:00,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:00,344 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:00,345 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:00,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052360670] [2022-12-14 05:10:00,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052360670] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:00,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:00,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:10:00,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218875145] [2022-12-14 05:10:00,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:00,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:10:00,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:00,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:10:00,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:10:00,346 INFO L87 Difference]: Start difference. First operand 139 states and 160 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:00,454 INFO L93 Difference]: Finished difference Result 138 states and 158 transitions. [2022-12-14 05:10:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:10:00,454 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 05:10:00,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:00,455 INFO L225 Difference]: With dead ends: 138 [2022-12-14 05:10:00,455 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 05:10:00,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:10:00,456 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 6 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:00,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 296 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 05:10:00,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 05:10:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 84 states have (on average 1.8452380952380953) internal successors, (155), 136 states have internal predecessors, (155), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 158 transitions. [2022-12-14 05:10:00,460 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 158 transitions. Word has length 16 [2022-12-14 05:10:00,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:00,460 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 158 transitions. [2022-12-14 05:10:00,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 158 transitions. [2022-12-14 05:10:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-12-14 05:10:00,461 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:00,461 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:00,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-14 05:10:00,461 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:00,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:00,461 INFO L85 PathProgramCache]: Analyzing trace with hash 552344246, now seen corresponding path program 1 times [2022-12-14 05:10:00,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:00,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207636604] [2022-12-14 05:10:00,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:00,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:00,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:00,596 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:00,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207636604] [2022-12-14 05:10:00,596 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207636604] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:00,596 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:00,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 05:10:00,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824584209] [2022-12-14 05:10:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:00,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:10:00,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:00,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:10:00,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:10:00,597 INFO L87 Difference]: Start difference. First operand 138 states and 158 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:00,709 INFO L93 Difference]: Finished difference Result 137 states and 156 transitions. [2022-12-14 05:10:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-14 05:10:00,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-12-14 05:10:00,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:00,710 INFO L225 Difference]: With dead ends: 137 [2022-12-14 05:10:00,710 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 05:10:00,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:10:00,711 INFO L413 NwaCegarLoop]: 105 mSDtfsCounter, 4 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:00,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 306 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:00,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 05:10:00,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 05:10:00,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.8214285714285714) internal successors, (153), 135 states have internal predecessors, (153), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 156 transitions. [2022-12-14 05:10:00,716 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 156 transitions. Word has length 16 [2022-12-14 05:10:00,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:00,716 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 156 transitions. [2022-12-14 05:10:00,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:00,716 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 156 transitions. [2022-12-14 05:10:00,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:10:00,716 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:00,716 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:00,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-14 05:10:00,717 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:00,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:00,717 INFO L85 PathProgramCache]: Analyzing trace with hash -1772914190, now seen corresponding path program 1 times [2022-12-14 05:10:00,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:00,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846131984] [2022-12-14 05:10:00,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:00,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:00,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:00,863 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:00,863 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:00,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846131984] [2022-12-14 05:10:00,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846131984] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:00,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:00,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 05:10:00,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363302580] [2022-12-14 05:10:00,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:00,864 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:10:00,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:00,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:10:00,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:10:00,864 INFO L87 Difference]: Start difference. First operand 137 states and 156 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:01,100 INFO L93 Difference]: Finished difference Result 138 states and 155 transitions. [2022-12-14 05:10:01,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:10:01,101 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 05:10:01,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:01,102 INFO L225 Difference]: With dead ends: 138 [2022-12-14 05:10:01,102 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 05:10:01,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:10:01,103 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 33 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:01,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 444 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:01,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 05:10:01,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2022-12-14 05:10:01,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.8095238095238095) internal successors, (152), 135 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 155 transitions. [2022-12-14 05:10:01,107 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 155 transitions. Word has length 18 [2022-12-14 05:10:01,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:01,107 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 155 transitions. [2022-12-14 05:10:01,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,107 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 155 transitions. [2022-12-14 05:10:01,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-12-14 05:10:01,108 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:01,108 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:01,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-14 05:10:01,108 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:01,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:01,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1772914189, now seen corresponding path program 1 times [2022-12-14 05:10:01,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:01,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95365052] [2022-12-14 05:10:01,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:01,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:01,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:01,301 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:01,301 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:01,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95365052] [2022-12-14 05:10:01,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95365052] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:01,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:01,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 05:10:01,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482998425] [2022-12-14 05:10:01,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:01,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 05:10:01,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:01,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 05:10:01,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-12-14 05:10:01,303 INFO L87 Difference]: Start difference. First operand 137 states and 155 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:01,539 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2022-12-14 05:10:01,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:10:01,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-12-14 05:10:01,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:01,540 INFO L225 Difference]: With dead ends: 137 [2022-12-14 05:10:01,540 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 05:10:01,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-12-14 05:10:01,540 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 31 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:01,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 395 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:01,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 05:10:01,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 05:10:01,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.7976190476190477) internal successors, (151), 135 states have internal predecessors, (151), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 154 transitions. [2022-12-14 05:10:01,543 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 154 transitions. Word has length 18 [2022-12-14 05:10:01,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:01,543 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 154 transitions. [2022-12-14 05:10:01,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,543 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 154 transitions. [2022-12-14 05:10:01,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 05:10:01,544 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:01,544 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:01,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-12-14 05:10:01,544 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:01,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:01,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1331691215, now seen corresponding path program 1 times [2022-12-14 05:10:01,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:01,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190350855] [2022-12-14 05:10:01,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:01,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:01,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:01,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:01,709 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:01,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190350855] [2022-12-14 05:10:01,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190350855] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:01,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:01,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 05:10:01,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676457562] [2022-12-14 05:10:01,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:01,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:10:01,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:01,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:10:01,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:10:01,710 INFO L87 Difference]: Start difference. First operand 137 states and 154 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:01,899 INFO L93 Difference]: Finished difference Result 138 states and 153 transitions. [2022-12-14 05:10:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:10:01,900 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 05:10:01,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:01,900 INFO L225 Difference]: With dead ends: 138 [2022-12-14 05:10:01,900 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 05:10:01,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 05:10:01,901 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 35 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:01,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 384 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:01,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 05:10:01,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 137. [2022-12-14 05:10:01,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.7857142857142858) internal successors, (150), 135 states have internal predecessors, (150), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 153 transitions. [2022-12-14 05:10:01,905 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 153 transitions. Word has length 20 [2022-12-14 05:10:01,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:01,905 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 153 transitions. [2022-12-14 05:10:01,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 153 transitions. [2022-12-14 05:10:01,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 05:10:01,906 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:01,906 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:01,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-12-14 05:10:01,906 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:01,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:01,907 INFO L85 PathProgramCache]: Analyzing trace with hash 1331691216, now seen corresponding path program 1 times [2022-12-14 05:10:01,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:01,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048277504] [2022-12-14 05:10:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:01,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:01,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:02,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:02,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048277504] [2022-12-14 05:10:02,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048277504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:02,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:02,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 05:10:02,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707444780] [2022-12-14 05:10:02,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:02,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-12-14 05:10:02,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:02,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-12-14 05:10:02,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:10:02,174 INFO L87 Difference]: Start difference. First operand 137 states and 153 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:02,403 INFO L93 Difference]: Finished difference Result 137 states and 152 transitions. [2022-12-14 05:10:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:10:02,404 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 05:10:02,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:02,404 INFO L225 Difference]: With dead ends: 137 [2022-12-14 05:10:02,404 INFO L226 Difference]: Without dead ends: 137 [2022-12-14 05:10:02,405 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-12-14 05:10:02,405 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 33 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:02,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 395 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:02,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-12-14 05:10:02,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2022-12-14 05:10:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 84 states have (on average 1.7738095238095237) internal successors, (149), 135 states have internal predecessors, (149), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:02,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 152 transitions. [2022-12-14 05:10:02,407 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 152 transitions. Word has length 20 [2022-12-14 05:10:02,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:02,408 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 152 transitions. [2022-12-14 05:10:02,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 9 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:02,408 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 152 transitions. [2022-12-14 05:10:02,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:10:02,408 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:02,408 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 05:10:02,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-12-14 05:10:02,408 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:02,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:02,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1299796685, now seen corresponding path program 1 times [2022-12-14 05:10:02,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:02,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285514198] [2022-12-14 05:10:02,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:02,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:02,484 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 05:10:02,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:02,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285514198] [2022-12-14 05:10:02,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285514198] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:10:02,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894883118] [2022-12-14 05:10:02,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:02,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:02,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:10:02,486 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:10:02,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 05:10:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:02,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-14 05:10:02,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:02,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 05:10:02,585 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:02,585 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:02,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:10:02,655 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:02,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894883118] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:10:02,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1134167797] [2022-12-14 05:10:02,657 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:10:02,657 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:10:02,657 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:10:02,657 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:10:02,657 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:02,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:10:02,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:02,693 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:02,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,701 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:10:02,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,714 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:10:02,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,722 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:02,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,728 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:02,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:02,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:02,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,776 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:02,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,798 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:10:02,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,825 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 33 [2022-12-14 05:10:02,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:02,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:02,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:02,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:02,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,893 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 33 [2022-12-14 05:10:02,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,933 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 05:10:02,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,950 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-12-14 05:10:02,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:02,964 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-12-14 05:10:03,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,039 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,046 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:03,047 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 349 treesize of output 335 [2022-12-14 05:10:03,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,074 INFO L321 Elim1Store]: treesize reduction 19, result has 32.1 percent of original size [2022-12-14 05:10:03,075 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 343 treesize of output 334 [2022-12-14 05:10:03,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,094 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,097 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,104 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:03,104 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 349 treesize of output 335 [2022-12-14 05:10:03,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,250 INFO L321 Elim1Store]: treesize reduction 118, result has 15.7 percent of original size [2022-12-14 05:10:03,250 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 396 treesize of output 399 [2022-12-14 05:10:03,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,343 INFO L321 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2022-12-14 05:10:03,343 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 437 treesize of output 345 [2022-12-14 05:10:03,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,363 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,377 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-12-14 05:10:03,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 450 treesize of output 429 [2022-12-14 05:10:03,391 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,392 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,414 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-12-14 05:10:03,415 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 8 case distinctions, treesize of input 437 treesize of output 438 [2022-12-14 05:10:03,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,489 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,518 INFO L321 Elim1Store]: treesize reduction 66, result has 20.5 percent of original size [2022-12-14 05:10:03,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 446 treesize of output 357 [2022-12-14 05:10:03,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,549 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 05:10:03,549 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 454 treesize of output 429 [2022-12-14 05:10:03,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,569 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,595 INFO L321 Elim1Store]: treesize reduction 102, result has 18.4 percent of original size [2022-12-14 05:10:03,595 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 446 treesize of output 450 [2022-12-14 05:10:03,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,673 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,678 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,696 INFO L321 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2022-12-14 05:10:03,696 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 455 treesize of output 369 [2022-12-14 05:10:03,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,733 INFO L321 Elim1Store]: treesize reduction 107, result has 10.8 percent of original size [2022-12-14 05:10:03,734 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 455 treesize of output 462 [2022-12-14 05:10:03,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,749 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:03,754 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 05:10:03,754 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 454 treesize of output 429 [2022-12-14 05:10:03,829 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:03,832 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:03,836 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:03,852 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:10:03,852 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2022-12-14 05:10:03,868 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:03,868 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:03,880 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2022-12-14 05:10:03,885 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-12-14 05:10:03,891 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-12-14 05:10:03,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,903 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 05:10:03,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,910 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 05:10:03,917 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2022-12-14 05:10:03,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:03,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:03,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:03,952 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 11 [2022-12-14 05:10:03,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:03,981 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:03,986 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:04,051 INFO L321 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2022-12-14 05:10:04,052 INFO L350 Elim1Store]: Elim1 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 5 case distinctions, treesize of input 136 treesize of output 152 [2022-12-14 05:10:04,117 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:04,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:04,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:04,163 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-12-14 05:10:04,163 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 137 treesize of output 135 [2022-12-14 05:10:04,178 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:04,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:04,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:04,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:04,195 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:04,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:04,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:04,214 INFO L321 Elim1Store]: treesize reduction 65, result has 12.2 percent of original size [2022-12-14 05:10:04,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 135 [2022-12-14 05:10:04,238 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:10:04,723 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4657#(and (not (= |ULTIMATE.start_create_tree_~nodelast~0#1.base| 0)) (<= 0 |ULTIMATE.start_create_tree_~nodelast~0#1.offset|) (<= 0 |ULTIMATE.start_create_tree_~node~0#1.offset|) (= |#NULL.offset| 0) (not (= (select |#valid| |ULTIMATE.start_create_tree_~nodelast~0#1.base|) 1)) (<= |ULTIMATE.start_create_tree_~node~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 0))' at error location [2022-12-14 05:10:04,723 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:10:04,723 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:10:04,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 4] total 6 [2022-12-14 05:10:04,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019354166] [2022-12-14 05:10:04,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:10:04,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 05:10:04,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:04,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 05:10:04,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-12-14 05:10:04,724 INFO L87 Difference]: Start difference. First operand 137 states and 152 transitions. Second operand has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:04,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:04,828 INFO L93 Difference]: Finished difference Result 177 states and 194 transitions. [2022-12-14 05:10:04,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:10:04,828 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 05:10:04,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:04,829 INFO L225 Difference]: With dead ends: 177 [2022-12-14 05:10:04,829 INFO L226 Difference]: Without dead ends: 177 [2022-12-14 05:10:04,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:10:04,830 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 381 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 381 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:04,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [381 Valid, 161 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:04,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-12-14 05:10:04,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 136. [2022-12-14 05:10:04,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 84 states have (on average 1.7619047619047619) internal successors, (148), 134 states have internal predecessors, (148), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:04,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 151 transitions. [2022-12-14 05:10:04,832 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 151 transitions. Word has length 22 [2022-12-14 05:10:04,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:04,832 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 151 transitions. [2022-12-14 05:10:04,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 5.5) internal successors, (33), 7 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:04,832 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 151 transitions. [2022-12-14 05:10:04,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:10:04,832 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:04,833 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-12-14 05:10:04,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-12-14 05:10:05,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-12-14 05:10:05,034 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:05,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:05,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1299796684, now seen corresponding path program 1 times [2022-12-14 05:10:05,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:05,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224143938] [2022-12-14 05:10:05,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:05,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:05,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:05,179 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:05,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:05,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224143938] [2022-12-14 05:10:05,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224143938] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:10:05,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356746508] [2022-12-14 05:10:05,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:05,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:05,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:10:05,181 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:10:05,182 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 05:10:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:05,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 15 conjunts are in the unsatisfiable core [2022-12-14 05:10:05,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:05,267 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 05:10:05,279 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 05:10:05,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:05,324 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2022-12-14 05:10:05,332 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 05:10:05,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 05:10:05,342 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:05,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:10:11,557 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 12 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-12-14 05:10:11,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356746508] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:10:11,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1576520519] [2022-12-14 05:10:11,558 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2022-12-14 05:10:11,558 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:10:11,558 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:10:11,558 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:10:11,558 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,574 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:10:11,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,583 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:10:11,588 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:11,593 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:11,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,603 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:11,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:10:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,640 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:11,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,648 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:11,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:11,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,677 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 05:10:11,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,694 INFO L350 Elim1Store]: Elim1 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 37 treesize of output 31 [2022-12-14 05:10:11,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,703 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 05:10:11,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,711 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-12-14 05:10:11,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-12-14 05:10:11,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,736 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2022-12-14 05:10:11,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,753 INFO L350 Elim1Store]: Elim1 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 31 [2022-12-14 05:10:11,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,775 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 31 [2022-12-14 05:10:11,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,786 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 05:10:11,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 52 [2022-12-14 05:10:11,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:11,863 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:11,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,871 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:11,871 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 341 treesize of output 327 [2022-12-14 05:10:11,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:11,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:11,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,897 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:11,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 341 treesize of output 327 [2022-12-14 05:10:11,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:11,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:11,920 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:11,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 335 treesize of output 328 [2022-12-14 05:10:12,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,064 INFO L321 Elim1Store]: treesize reduction 118, result has 15.7 percent of original size [2022-12-14 05:10:12,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 431 treesize of output 426 [2022-12-14 05:10:12,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,151 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-12-14 05:10:12,152 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 6 case distinctions, treesize of input 485 treesize of output 464 [2022-12-14 05:10:12,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,206 INFO L321 Elim1Store]: treesize reduction 168, result has 15.2 percent of original size [2022-12-14 05:10:12,207 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 472 treesize of output 374 [2022-12-14 05:10:12,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,258 INFO L321 Elim1Store]: treesize reduction 174, result has 16.3 percent of original size [2022-12-14 05:10:12,258 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 472 treesize of output 458 [2022-12-14 05:10:12,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,331 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 05:10:12,332 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 489 treesize of output 464 [2022-12-14 05:10:12,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,351 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,397 INFO L321 Elim1Store]: treesize reduction 206, result has 13.4 percent of original size [2022-12-14 05:10:12,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 481 treesize of output 386 [2022-12-14 05:10:12,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,457 INFO L321 Elim1Store]: treesize reduction 220, result has 14.1 percent of original size [2022-12-14 05:10:12,457 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 481 treesize of output 470 [2022-12-14 05:10:12,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,554 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,560 INFO L321 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-12-14 05:10:12,560 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 489 treesize of output 464 [2022-12-14 05:10:12,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,591 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,592 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,623 INFO L321 Elim1Store]: treesize reduction 205, result has 6.8 percent of original size [2022-12-14 05:10:12,623 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 490 treesize of output 398 [2022-12-14 05:10:12,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:12,673 INFO L321 Elim1Store]: treesize reduction 211, result has 5.8 percent of original size [2022-12-14 05:10:12,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 19 case distinctions, treesize of input 490 treesize of output 482 [2022-12-14 05:10:12,741 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:12,745 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:12,749 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:12,765 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:10:12,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 05:10:12,780 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:12,780 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:12,789 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-12-14 05:10:12,794 INFO L350 Elim1Store]: Elim1 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 11 treesize of output 7 [2022-12-14 05:10:12,799 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2022-12-14 05:10:12,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,818 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 05:10:12,823 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-12-14 05:10:12,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,829 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 05:10:12,842 INFO L350 Elim1Store]: Elim1 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 29 treesize of output 13 [2022-12-14 05:10:12,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,847 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:12,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:12,855 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:12,872 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:12,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:12,879 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:12,936 INFO L321 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2022-12-14 05:10:12,936 INFO L350 Elim1Store]: Elim1 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 5 case distinctions, treesize of input 136 treesize of output 152 [2022-12-14 05:10:12,995 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:12,995 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:13,042 INFO L321 Elim1Store]: treesize reduction 78, result has 21.2 percent of original size [2022-12-14 05:10:13,042 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 137 treesize of output 135 [2022-12-14 05:10:13,056 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:13,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:13,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,074 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:13,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,095 INFO L321 Elim1Store]: treesize reduction 65, result has 12.2 percent of original size [2022-12-14 05:10:13,095 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 145 treesize of output 135 [2022-12-14 05:10:13,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:13,109 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:13,124 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:10:13,731 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5117#(and (not (= |ULTIMATE.start_create_tree_~nodelast~0#1.base| 0)) (< (select |#length| |ULTIMATE.start_create_tree_~nodelast~0#1.base|) (+ |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 12)) (<= 0 |ULTIMATE.start_create_tree_~nodelast~0#1.offset|) (<= 0 |ULTIMATE.start_create_tree_~node~0#1.offset|) (= |#NULL.offset| 0) (<= |ULTIMATE.start_create_tree_~node~0#1.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 0))' at error location [2022-12-14 05:10:13,731 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:10:13,731 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:10:13,731 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 9 [2022-12-14 05:10:13,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861311024] [2022-12-14 05:10:13,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:10:13,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:10:13,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:13,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:10:13,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-12-14 05:10:13,732 INFO L87 Difference]: Start difference. First operand 136 states and 151 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:13,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:13,952 INFO L93 Difference]: Finished difference Result 178 states and 193 transitions. [2022-12-14 05:10:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-14 05:10:13,953 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 05:10:13,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:13,953 INFO L225 Difference]: With dead ends: 178 [2022-12-14 05:10:13,953 INFO L226 Difference]: Without dead ends: 178 [2022-12-14 05:10:13,954 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2022-12-14 05:10:13,954 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 400 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:13,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 167 Invalid, 307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2022-12-14 05:10:13,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 127. [2022-12-14 05:10:13,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.8026315789473684) internal successors, (137), 125 states have internal predecessors, (137), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:13,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 140 transitions. [2022-12-14 05:10:13,956 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 140 transitions. Word has length 22 [2022-12-14 05:10:13,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:13,956 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 140 transitions. [2022-12-14 05:10:13,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:13,957 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 140 transitions. [2022-12-14 05:10:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:10:13,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:13,957 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:13,962 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 05:10:14,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-12-14 05:10:14,158 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:14,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:14,159 INFO L85 PathProgramCache]: Analyzing trace with hash -144789881, now seen corresponding path program 1 times [2022-12-14 05:10:14,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:14,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240491867] [2022-12-14 05:10:14,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:14,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:14,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:14,397 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:14,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240491867] [2022-12-14 05:10:14,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240491867] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:14,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:14,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 05:10:14,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146080244] [2022-12-14 05:10:14,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:14,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:10:14,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:14,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:10:14,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:10:14,399 INFO L87 Difference]: Start difference. First operand 127 states and 140 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:14,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:14,627 INFO L93 Difference]: Finished difference Result 128 states and 139 transitions. [2022-12-14 05:10:14,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 05:10:14,627 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 05:10:14,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:14,627 INFO L225 Difference]: With dead ends: 128 [2022-12-14 05:10:14,627 INFO L226 Difference]: Without dead ends: 128 [2022-12-14 05:10:14,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2022-12-14 05:10:14,628 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 37 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:14,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 378 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:14,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-12-14 05:10:14,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 127. [2022-12-14 05:10:14,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.7894736842105263) internal successors, (136), 125 states have internal predecessors, (136), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:14,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2022-12-14 05:10:14,631 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 22 [2022-12-14 05:10:14,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:14,631 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2022-12-14 05:10:14,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:14,631 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2022-12-14 05:10:14,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-14 05:10:14,631 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:14,632 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:10:14,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-12-14 05:10:14,632 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:14,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:14,632 INFO L85 PathProgramCache]: Analyzing trace with hash -144789880, now seen corresponding path program 1 times [2022-12-14 05:10:14,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:14,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655755501] [2022-12-14 05:10:14,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:14,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:14,953 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:14,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655755501] [2022-12-14 05:10:14,953 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655755501] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:14,953 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:14,953 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-12-14 05:10:14,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859649768] [2022-12-14 05:10:14,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:14,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-14 05:10:14,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-14 05:10:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-14 05:10:14,955 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:15,201 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2022-12-14 05:10:15,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-14 05:10:15,202 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-12-14 05:10:15,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:15,202 INFO L225 Difference]: With dead ends: 127 [2022-12-14 05:10:15,203 INFO L226 Difference]: Without dead ends: 127 [2022-12-14 05:10:15,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-12-14 05:10:15,203 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 33 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 394 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:15,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 394 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-14 05:10:15,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-12-14 05:10:15,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-12-14 05:10:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.7763157894736843) internal successors, (135), 125 states have internal predecessors, (135), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 138 transitions. [2022-12-14 05:10:15,207 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 138 transitions. Word has length 22 [2022-12-14 05:10:15,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:15,207 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 138 transitions. [2022-12-14 05:10:15,207 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:15,207 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 138 transitions. [2022-12-14 05:10:15,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-12-14 05:10:15,207 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:15,208 INFO L195 NwaCegarLoop]: 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] [2022-12-14 05:10:15,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-12-14 05:10:15,208 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:15,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:15,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1281658308, now seen corresponding path program 1 times [2022-12-14 05:10:15,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:15,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456103302] [2022-12-14 05:10:15,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:15,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:15,672 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:15,672 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456103302] [2022-12-14 05:10:15,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456103302] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:10:15,673 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044816895] [2022-12-14 05:10:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:15,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:15,673 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:10:15,674 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:10:15,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 05:10:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:15,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 56 conjunts are in the unsatisfiable core [2022-12-14 05:10:15,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:15,773 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2022-12-14 05:10:15,785 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:15,790 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:15,808 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:10:15,812 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:10:15,835 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:10:15,841 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-12-14 05:10:15,875 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-12-14 05:10:15,875 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-12-14 05:10:15,906 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:15,907 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:15,913 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-12-14 05:10:15,970 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:10:15,970 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 44 [2022-12-14 05:10:15,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 05:10:16,025 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:10:16,026 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 44 [2022-12-14 05:10:16,033 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 05:10:16,081 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:10:16,082 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 44 [2022-12-14 05:10:16,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 05:10:16,146 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-12-14 05:10:16,146 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 44 [2022-12-14 05:10:16,151 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 29 [2022-12-14 05:10:16,166 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 14 [2022-12-14 05:10:16,169 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:16,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 10 [2022-12-14 05:10:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:16,173 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:10:16,274 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_841 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_841) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_840 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_840) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse0) 0)) (forall ((v_ArrVal_840 (Array Int Int))) (not (= |c_ULTIMATE.start_create_tree_~node~0#1.base| (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem14#1.base| v_ArrVal_840) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)))))) is different from false [2022-12-14 05:10:16,283 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4)) (.cse0 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (and (forall ((v_ArrVal_840 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_840) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_841 (Array Int Int))) (= (select (select (store |c_#memory_$Pointer$.offset| .cse0 v_ArrVal_841) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse1) 0)) (forall ((v_ArrVal_840 (Array Int Int))) (not (= (select (select (store |c_#memory_$Pointer$.base| .cse0 v_ArrVal_840) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) |c_ULTIMATE.start_create_tree_~node~0#1.base|))))) is different from false [2022-12-14 05:10:16,501 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_840 (Array Int Int))) (= (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem12#1.base| v_ArrVal_836))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_839)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_840)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)) (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_840 (Array Int Int))) (not (= (select (select (let ((.cse3 (let ((.cse4 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem12#1.base| v_ArrVal_836))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_839)))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_840)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) |c_ULTIMATE.start_create_tree_~node~0#1.base|))) (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_838 (Array Int Int)) (v_ArrVal_837 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_841 (Array Int Int))) (= (select (select (let ((.cse6 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_#t~mem12#1.base| v_ArrVal_836))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_create_tree_#t~mem12#1.base| v_ArrVal_837) .cse5 v_ArrVal_838) (select (select (store .cse6 .cse5 v_ArrVal_839) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_841))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse2) 0)))) is different from false [2022-12-14 05:10:16,523 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|)) (.cse3 (+ |c_ULTIMATE.start_create_tree_~node~0#1.offset| 4))) (and (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_840 (Array Int Int))) (= (select (select (let ((.cse0 (let ((.cse1 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_836))) (store .cse1 (select (select .cse1 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_839)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_840)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)) (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_840 (Array Int Int))) (not (= (select (select (let ((.cse4 (let ((.cse5 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_836))) (store .cse5 (select (select .cse5 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_839)))) (store .cse4 (select (select .cse4 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_840)) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) |c_ULTIMATE.start_create_tree_~node~0#1.base|))) (forall ((v_ArrVal_836 (Array Int Int)) (v_ArrVal_838 (Array Int Int)) (v_ArrVal_837 (Array Int Int)) (v_ArrVal_839 (Array Int Int)) (v_ArrVal_841 (Array Int Int))) (= (select (select (let ((.cse7 (store |c_#memory_$Pointer$.base| .cse2 v_ArrVal_836))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|))) (store (store (store |c_#memory_$Pointer$.offset| .cse2 v_ArrVal_837) .cse6 v_ArrVal_838) (select (select (store .cse7 .cse6 v_ArrVal_839) |c_ULTIMATE.start_create_tree_~node~0#1.base|) |c_ULTIMATE.start_create_tree_~node~0#1.offset|) v_ArrVal_841))) |c_ULTIMATE.start_create_tree_~node~0#1.base|) .cse3) 0)))) is different from false [2022-12-14 05:10:17,481 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,482 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 71 [2022-12-14 05:10:17,490 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,490 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 990 treesize of output 720 [2022-12-14 05:10:17,516 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,517 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 618 treesize of output 542 [2022-12-14 05:10:17,525 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 542 treesize of output 502 [2022-12-14 05:10:17,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 502 treesize of output 486 [2022-12-14 05:10:17,689 INFO L321 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2022-12-14 05:10:17,689 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 1 [2022-12-14 05:10:17,698 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 114 treesize of output 125 [2022-12-14 05:10:17,708 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,709 INFO L350 Elim1Store]: Elim1 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 1 new quantified variables, introduced 3 case distinctions, treesize of input 96 treesize of output 71 [2022-12-14 05:10:17,713 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 360 treesize of output 252 [2022-12-14 05:10:17,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:17,723 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:17,723 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 589 treesize of output 517 [2022-12-14 05:10:17,735 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 509 treesize of output 457 [2022-12-14 05:10:17,740 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 457 treesize of output 409 [2022-12-14 05:10:17,744 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 409 treesize of output 389 [2022-12-14 05:10:17,750 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 389 treesize of output 357 [2022-12-14 05:10:17,921 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:17,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1044816895] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:10:17,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [737864201] [2022-12-14 05:10:17,924 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2022-12-14 05:10:17,924 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:10:17,924 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:10:17,924 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:10:17,924 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:17,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:17,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:17,951 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:10:17,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:17,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:17,971 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:10:17,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:17,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:17,988 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:17,996 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:10:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,004 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,022 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,031 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,068 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:10:18,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,094 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,106 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 33 [2022-12-14 05:10:18,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,126 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:18,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,139 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:18,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,151 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 33 [2022-12-14 05:10:18,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,182 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,228 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:10:18,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,248 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 33 [2022-12-14 05:10:18,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,257 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,269 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,285 INFO L350 Elim1Store]: Elim1 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 43 treesize of output 33 [2022-12-14 05:10:18,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,297 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:18,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-12-14 05:10:18,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,344 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,352 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:18,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,362 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:18,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,434 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:18,434 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 222 treesize of output 204 [2022-12-14 05:10:18,441 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 218 [2022-12-14 05:10:18,449 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 216 treesize of output 218 [2022-12-14 05:10:18,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,516 INFO L321 Elim1Store]: treesize reduction 44, result has 20.0 percent of original size [2022-12-14 05:10:18,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 216 treesize of output 216 [2022-12-14 05:10:18,566 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 247 treesize of output 245 [2022-12-14 05:10:18,575 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 243 treesize of output 241 [2022-12-14 05:10:18,587 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,599 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 05:10:18,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 236 [2022-12-14 05:10:18,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,660 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:18,661 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 367 treesize of output 315 [2022-12-14 05:10:18,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,688 INFO L321 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2022-12-14 05:10:18,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 264 treesize of output 230 [2022-12-14 05:10:18,726 INFO L321 Elim1Store]: treesize reduction 108, result has 19.4 percent of original size [2022-12-14 05:10:18,727 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 298 treesize of output 290 [2022-12-14 05:10:18,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,793 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,805 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:18,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 397 treesize of output 340 [2022-12-14 05:10:18,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,828 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:18,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 268 treesize of output 230 [2022-12-14 05:10:18,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,846 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 05:10:18,846 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 313 treesize of output 308 [2022-12-14 05:10:18,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:18,910 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:18,911 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 433 treesize of output 367 [2022-12-14 05:10:18,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,932 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:18,932 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 254 treesize of output 247 [2022-12-14 05:10:18,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:18,957 INFO L321 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2022-12-14 05:10:18,958 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 338 treesize of output 332 [2022-12-14 05:10:19,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,029 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,044 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-12-14 05:10:19,045 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 430 treesize of output 364 [2022-12-14 05:10:19,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,071 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:19,071 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 279 treesize of output 244 [2022-12-14 05:10:19,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,099 INFO L321 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2022-12-14 05:10:19,099 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 324 treesize of output 322 [2022-12-14 05:10:19,177 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-12-14 05:10:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,215 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:19,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 397 treesize of output 340 [2022-12-14 05:10:19,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,235 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:19,235 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 268 treesize of output 230 [2022-12-14 05:10:19,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,251 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 05:10:19,251 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 313 treesize of output 308 [2022-12-14 05:10:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,326 INFO L321 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-12-14 05:10:19,326 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 433 treesize of output 367 [2022-12-14 05:10:19,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,348 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:19,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 254 treesize of output 247 [2022-12-14 05:10:19,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,373 INFO L321 Elim1Store]: treesize reduction 60, result has 27.7 percent of original size [2022-12-14 05:10:19,373 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 338 treesize of output 332 [2022-12-14 05:10:19,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,453 INFO L321 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2022-12-14 05:10:19,453 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 436 treesize of output 370 [2022-12-14 05:10:19,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,475 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:19,476 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 285 treesize of output 250 [2022-12-14 05:10:19,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,499 INFO L321 Elim1Store]: treesize reduction 40, result has 36.5 percent of original size [2022-12-14 05:10:19,499 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 341 treesize of output 335 [2022-12-14 05:10:19,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-12-14 05:10:19,596 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 05:10:19,607 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:19,611 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:10:19,618 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:19,650 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 05:10:19,650 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 130 treesize of output 100 [2022-12-14 05:10:19,663 INFO L321 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2022-12-14 05:10:19,664 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 65 [2022-12-14 05:10:19,670 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:10:19,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,706 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:10:19,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:19,751 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 05:10:19,751 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 248 treesize of output 234 [2022-12-14 05:10:19,760 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,768 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:19,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 246 [2022-12-14 05:10:19,776 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:19,784 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:19,784 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 244 treesize of output 246 [2022-12-14 05:10:19,801 INFO L180 IcfgInterpreter]: Interpretation finished [2022-12-14 05:10:24,682 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6167#(and (= (select |#valid| |ULTIMATE.start_create_tree_#t~malloc11#1.base|) 1) (<= |ULTIMATE.start_create_tree_~value~0#1| 2147483647) (or (not (<= (+ 4 |ULTIMATE.start_create_tree_~node~0#1.offset|) (select |#length| |ULTIMATE.start_create_tree_~node~0#1.base|))) (not (<= 0 |ULTIMATE.start_create_tree_~node~0#1.offset|))) (= |ULTIMATE.start_create_tree_#t~malloc11#1.offset| 0) (<= 0 |ULTIMATE.start_create_tree_~nodelast~0#1.offset|) (or (not (= |ULTIMATE.start_create_tree_~node~0#1.base| 0)) (not (= |ULTIMATE.start_create_tree_~node~0#1.offset| 0))) (= (select |#length| |ULTIMATE.start_create_tree_#t~malloc11#1.base|) 16) (not (= |ULTIMATE.start_create_tree_#t~malloc11#1.base| 0)) (= |#NULL.offset| 0) (<= 0 (+ |ULTIMATE.start_create_tree_~value~0#1| 2147483648)) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (<= |ULTIMATE.start_create_tree_~nodelast~0#1.offset| 0) (< |ULTIMATE.start_create_tree_#t~malloc11#1.base| |#StackHeapBarrier|))' at error location [2022-12-14 05:10:24,682 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-12-14 05:10:24,682 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-14 05:10:24,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 16] total 30 [2022-12-14 05:10:24,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282577149] [2022-12-14 05:10:24,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-14 05:10:24,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-12-14 05:10:24,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:24,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-12-14 05:10:24,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=284, Invalid=1848, Unknown=46, NotChecked=372, Total=2550 [2022-12-14 05:10:24,683 INFO L87 Difference]: Start difference. First operand 127 states and 138 transitions. Second operand has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:27,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:27,995 INFO L93 Difference]: Finished difference Result 147 states and 159 transitions. [2022-12-14 05:10:27,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-12-14 05:10:27,996 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-12-14 05:10:27,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:27,996 INFO L225 Difference]: With dead ends: 147 [2022-12-14 05:10:27,996 INFO L226 Difference]: Without dead ends: 147 [2022-12-14 05:10:27,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 41 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=404, Invalid=2637, Unknown=55, NotChecked=444, Total=3540 [2022-12-14 05:10:27,997 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 97 mSDsluCounter, 995 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 14 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 1092 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:27,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 1092 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 666 Invalid, 12 Unknown, 518 Unchecked, 0.8s Time] [2022-12-14 05:10:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-12-14 05:10:27,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2022-12-14 05:10:27,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 94 states have (on average 1.6382978723404256) internal successors, (154), 143 states have internal predecessors, (154), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:27,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 157 transitions. [2022-12-14 05:10:27,999 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 157 transitions. Word has length 25 [2022-12-14 05:10:27,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:27,999 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 157 transitions. [2022-12-14 05:10:27,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.903225806451613) internal successors, (59), 30 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 157 transitions. [2022-12-14 05:10:28,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-14 05:10:28,000 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:28,000 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:10:28,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 05:10:28,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:28,201 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:28,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:28,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1076456979, now seen corresponding path program 1 times [2022-12-14 05:10:28,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:28,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19746869] [2022-12-14 05:10:28,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:28,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:28,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 05:10:28,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:28,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19746869] [2022-12-14 05:10:28,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19746869] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:28,290 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:28,290 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 05:10:28,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264182495] [2022-12-14 05:10:28,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:28,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-14 05:10:28,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:28,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-14 05:10:28,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-14 05:10:28,291 INFO L87 Difference]: Start difference. First operand 145 states and 157 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:28,377 INFO L93 Difference]: Finished difference Result 145 states and 155 transitions. [2022-12-14 05:10:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 05:10:28,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-12-14 05:10:28,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:28,378 INFO L225 Difference]: With dead ends: 145 [2022-12-14 05:10:28,378 INFO L226 Difference]: Without dead ends: 145 [2022-12-14 05:10:28,378 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-12-14 05:10:28,378 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 195 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:28,378 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 207 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-12-14 05:10:28,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2022-12-14 05:10:28,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 94 states have (on average 1.6170212765957446) internal successors, (152), 143 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 155 transitions. [2022-12-14 05:10:28,380 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 155 transitions. Word has length 26 [2022-12-14 05:10:28,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:28,381 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 155 transitions. [2022-12-14 05:10:28,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,381 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 155 transitions. [2022-12-14 05:10:28,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 05:10:28,381 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:28,381 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:10:28,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-12-14 05:10:28,381 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:28,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:28,382 INFO L85 PathProgramCache]: Analyzing trace with hash 611872392, now seen corresponding path program 1 times [2022-12-14 05:10:28,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:28,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160658745] [2022-12-14 05:10:28,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:28,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:28,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-14 05:10:28,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:28,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160658745] [2022-12-14 05:10:28,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160658745] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:10:28,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:10:28,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-12-14 05:10:28,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20130942] [2022-12-14 05:10:28,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:10:28,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 05:10:28,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 05:10:28,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 05:10:28,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-12-14 05:10:28,439 INFO L87 Difference]: Start difference. First operand 145 states and 155 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:10:28,589 INFO L93 Difference]: Finished difference Result 167 states and 179 transitions. [2022-12-14 05:10:28,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 05:10:28,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 28 [2022-12-14 05:10:28,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:10:28,590 INFO L225 Difference]: With dead ends: 167 [2022-12-14 05:10:28,590 INFO L226 Difference]: Without dead ends: 167 [2022-12-14 05:10:28,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-12-14 05:10:28,591 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 266 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-14 05:10:28,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [266 Valid, 254 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-14 05:10:28,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-12-14 05:10:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 145. [2022-12-14 05:10:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 95 states have (on average 1.6) internal successors, (152), 143 states have internal predecessors, (152), 2 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 154 transitions. [2022-12-14 05:10:28,595 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 154 transitions. Word has length 28 [2022-12-14 05:10:28,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:10:28,595 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 154 transitions. [2022-12-14 05:10:28,595 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 05:10:28,595 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 154 transitions. [2022-12-14 05:10:28,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-12-14 05:10:28,595 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:10:28,595 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-12-14 05:10:28,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-12-14 05:10:28,596 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 62 more)] === [2022-12-14 05:10:28,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:10:28,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1788115031, now seen corresponding path program 1 times [2022-12-14 05:10:28,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:10:28,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397482795] [2022-12-14 05:10:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:28,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:10:28,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:28,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 05:10:28,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397482795] [2022-12-14 05:10:28,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397482795] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-14 05:10:28,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885244978] [2022-12-14 05:10:28,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:10:28,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 05:10:28,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:10:28,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 05:10:28,682 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0856513-ff31-4119-8637-c9a5da1ebc62/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 05:10:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:10:28,782 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 13 conjunts are in the unsatisfiable core [2022-12-14 05:10:28,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:10:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:28,807 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 05:10:28,827 INFO L321 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-12-14 05:10:28,828 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2022-12-14 05:10:28,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 05:10:28,834 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885244978] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 05:10:28,834 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1092179951] [2022-12-14 05:10:28,836 INFO L159 IcfgInterpreter]: Started Sifa with 27 locations of interest [2022-12-14 05:10:28,836 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 05:10:28,837 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 05:10:28,837 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 05:10:28,837 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 05:10:28,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,865 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-12-14 05:10:28,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:28,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,882 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-12-14 05:10:28,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 05:10:28,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,902 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:28,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,909 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2022-12-14 05:10:28,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,916 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:28,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,935 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:28,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:28,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,952 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:28,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:28,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 35 [2022-12-14 05:10:29,008 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,020 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:29,021 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 253 [2022-12-14 05:10:29,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,041 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 05:10:29,041 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 255 treesize of output 241 [2022-12-14 05:10:29,047 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,058 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:29,059 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 253 [2022-12-14 05:10:29,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,113 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,123 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:29,124 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 260 treesize of output 265 [2022-12-14 05:10:29,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,142 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:29,142 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 259 treesize of output 241 [2022-12-14 05:10:29,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,161 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:29,162 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 260 treesize of output 265 [2022-12-14 05:10:29,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,198 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:29,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,206 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:29,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:29,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,240 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 05:10:29,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,276 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:29,277 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 253 [2022-12-14 05:10:29,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,294 INFO L321 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-12-14 05:10:29,295 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 255 treesize of output 241 [2022-12-14 05:10:29,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,311 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:29,311 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 251 treesize of output 253 [2022-12-14 05:10:29,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,367 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:29,368 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 260 treesize of output 265 [2022-12-14 05:10:29,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,389 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-12-14 05:10:29,389 INFO L350 Elim1Store]: Elim1 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 2 case distinctions, treesize of input 259 treesize of output 241 [2022-12-14 05:10:29,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,411 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:29,411 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 260 treesize of output 265 [2022-12-14 05:10:29,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:29,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,473 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-12-14 05:10:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,483 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2022-12-14 05:10:29,527 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:29,532 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:29,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:29,559 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-12-14 05:10:29,559 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 20 [2022-12-14 05:10:29,580 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-12-14 05:10:29,580 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2022-12-14 05:10:29,601 INFO L350 Elim1Store]: Elim1 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 21 treesize of output 20 [2022-12-14 05:10:29,609 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:10:29,615 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-12-14 05:10:29,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,651 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-12-14 05:10:29,651 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 147 treesize of output 104 [2022-12-14 05:10:29,660 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 86 [2022-12-14 05:10:29,666 INFO L350 Elim1Store]: Elim1 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 27 treesize of output 1 [2022-12-14 05:10:29,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,698 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:10:29,698 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 177 treesize of output 129 [2022-12-14 05:10:29,715 INFO L321 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-12-14 05:10:29,715 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 124 treesize of output 108 [2022-12-14 05:10:29,724 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 1 [2022-12-14 05:10:29,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,763 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,767 INFO L321 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-12-14 05:10:29,768 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 225 treesize of output 168 [2022-12-14 05:10:29,778 INFO L350 Elim1Store]: Elim1 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 25 treesize of output 17 [2022-12-14 05:10:29,799 INFO L321 Elim1Store]: treesize reduction 68, result has 25.3 percent of original size [2022-12-14 05:10:29,800 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 133 treesize of output 119 [2022-12-14 05:10:29,826 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 05:10:29,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 05:10:29,842 INFO L321 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-12-14 05:10:29,842 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 228 treesize of output 171 [2022-12-14 05:10:29,869 INFO L321 Elim1Store]: treesize reduction 48, result has 32.4 percent of original size [2022-12-14 05:10:29,869 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 3 case distinctions, treesize of input 175 treesize of output 153 [2022-12-14 05:10:29,877 INFO L350 Elim1Store]: Elim1 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 39 treesize of output 15 [2022-12-14 05:10:29,944 INFO L321 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2022-12-14 05:10:29,944 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 26 treesize of output 41 [2022-12-14 05:10:29,956 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 26 [2022-12-14 05:10:30,102 INFO L321 Elim1Store]: treesize reduction 120, result has 43.1 percent of original size [2022-12-14 05:10:30,102 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 152 treesize of output 169 [2022-12-14 05:10:30,138 INFO L321 Elim1Store]: treesize reduction 21, result has 41.7 percent of original size [2022-12-14 05:10:30,138 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 23 treesize of output 19 [2022-12-14 05:10:30,205 INFO L321 Elim1Store]: treesize reduction 136, result has 27.3 percent of original size [2022-12-14 05:10:30,205 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 76 [2022-12-14 05:10:30,405 INFO L321 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-12-14 05:10:30,405 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 106 treesize of output 88 [2022-12-14 05:10:30,425 INFO L321 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-12-14 05:10:30,425 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 73 [2022-12-14 05:10:30,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 05:10:30,469 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:30,474 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 05:10:30,478 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:30,548 INFO L321 Elim1Store]: treesize reduction 66, result has 47.2 percent of original size [2022-12-14 05:10:30,548 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 137 treesize of output 148 [2022-12-14 05:10:30,604 INFO L321 Elim1Store]: treesize reduction 48, result has 50.5 percent of original size [2022-12-14 05:10:30,604 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 118 treesize of output 131 [2022-12-14 05:10:30,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 05:10:35,765 INFO L321 Elim1Store]: treesize reduction 500, result has 69.4 percent of original size [2022-12-14 05:10:35,766 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 15 new quantified variables, introduced 91 case distinctions, treesize of input 1023 treesize of output 1970 [2022-12-14 05:10:36,035 INFO L217 Elim1Store]: Index analysis took 187 ms [2022-12-14 05:10:41,918 WARN L233 SmtUtils]: Spent 5.58s on a formula simplification. DAG size of input: 499 DAG size of output: 451 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-12-14 05:10:41,920 INFO L321 Elim1Store]: treesize reduction 224, result has 79.7 percent of original size [2022-12-14 05:10:41,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 1291 treesize of output 1847 [2022-12-14 05:10:42,477 INFO L321 Elim1Store]: treesize reduction 132, result has 33.3 percent of original size [2022-12-14 05:10:42,477 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 737 treesize of output 692