./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:16:18,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:16:18,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:16:18,797 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:16:18,798 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:16:18,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:16:18,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:16:18,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:16:18,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:16:18,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:16:18,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:16:18,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:16:18,813 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:16:18,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:16:18,817 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:16:18,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:16:18,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:16:18,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:16:18,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:16:18,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:16:18,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:16:18,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:16:18,834 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:16:18,835 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:16:18,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:16:18,840 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:16:18,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:16:18,842 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:16:18,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:16:18,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:16:18,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:16:18,846 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:16:18,848 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:16:18,849 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:16:18,851 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:16:18,851 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:16:18,852 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:16:18,853 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:16:18,853 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:16:18,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:16:18,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:16:18,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-21 01:16:18,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:16:18,896 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:16:18,896 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:16:18,901 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:16:18,902 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:16:18,902 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:16:18,903 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:16:18,903 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:16:18,903 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:16:18,904 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:16:18,904 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:16:18,905 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:16:18,905 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:16:18,906 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:16:18,906 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:16:18,907 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:16:18,907 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:16:18,908 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:16:18,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-21 01:16:18,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-21 01:16:18,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:16:18,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:16:18,910 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:16:18,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:16:18,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:16:18,912 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:16:18,912 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-21 01:16:18,915 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-21 01:16:18,916 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-21 01:16:18,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:16:18,916 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-21 01:16:18,916 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:16:18,917 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:16:18,917 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:16:18,917 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:16:18,918 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:16:18,919 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:16:18,919 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:16:18,920 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:16:18,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:16:18,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:16:18,922 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:16:18,922 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2021-11-21 01:16:19,266 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:16:19,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:16:19,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:16:19,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:16:19,295 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:16:19,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2021-11-21 01:16:19,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/data/8a0f776c8/3c722bf66e7b4ad8a434ed041d994947/FLAG0315fea6f [2021-11-21 01:16:20,107 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:16:20,108 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2021-11-21 01:16:20,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/data/8a0f776c8/3c722bf66e7b4ad8a434ed041d994947/FLAG0315fea6f [2021-11-21 01:16:20,280 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/data/8a0f776c8/3c722bf66e7b4ad8a434ed041d994947 [2021-11-21 01:16:20,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:16:20,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:16:20,285 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:16:20,285 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:16:20,289 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:16:20,290 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:20,292 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ffa45a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20, skipping insertion in model container [2021-11-21 01:16:20,292 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:20,300 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:16:20,371 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:16:20,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2021-11-21 01:16:20,801 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:16:20,818 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:16:20,886 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2021-11-21 01:16:20,911 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:16:20,948 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:16:20,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20 WrapperNode [2021-11-21 01:16:20,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:16:20,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:16:20,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:16:20,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:16:20,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:20,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,037 INFO L137 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 294 [2021-11-21 01:16:21,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:16:21,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:16:21,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:16:21,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:16:21,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:16:21,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:16:21,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:16:21,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:16:21,123 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (1/1) ... [2021-11-21 01:16:21,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:16:21,173 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:21,188 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:16:21,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:16:21,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:16:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2021-11-21 01:16:21,248 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2021-11-21 01:16:21,248 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-21 01:16:21,248 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-21 01:16:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:16:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:16:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:16:21,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:16:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:16:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:16:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:16:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:16:21,250 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:16:21,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:16:21,395 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:16:21,411 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:16:22,256 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:16:22,339 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:16:22,339 INFO L301 CfgBuilder]: Removed 33 assume(true) statements. [2021-11-21 01:16:22,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:16:22 BoogieIcfgContainer [2021-11-21 01:16:22,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:16:22,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:16:22,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:16:22,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:16:22,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:16:20" (1/3) ... [2021-11-21 01:16:22,352 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:16:22, skipping insertion in model container [2021-11-21 01:16:22,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:16:20" (2/3) ... [2021-11-21 01:16:22,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@238b2a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:16:22, skipping insertion in model container [2021-11-21 01:16:22,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:16:22" (3/3) ... [2021-11-21 01:16:22,355 INFO L111 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2021-11-21 01:16:22,362 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:16:22,363 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2021-11-21 01:16:22,421 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:16:22,429 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=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, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:16:22,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2021-11-21 01:16:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-21 01:16:22,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:16:22,461 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:22,461 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:16:22,462 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:22,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash 18345167, now seen corresponding path program 1 times [2021-11-21 01:16:22,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:22,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024882705] [2021-11-21 01:16:22,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:22,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:22,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:22,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:22,688 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:22,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024882705] [2021-11-21 01:16:22,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024882705] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:22,690 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:22,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:22,696 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928822172] [2021-11-21 01:16:22,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:22,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:22,703 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:22,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:22,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:22,749 INFO L87 Difference]: Start difference. First operand has 230 states, 107 states have (on average 2.514018691588785) internal successors, (269), 227 states have internal predecessors, (269), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 14 states have call predecessors, (15), 15 states have call successors, (15) 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) [2021-11-21 01:16:23,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:23,263 INFO L93 Difference]: Finished difference Result 396 states and 447 transitions. [2021-11-21 01:16:23,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:23,268 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 [2021-11-21 01:16:23,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:23,297 INFO L225 Difference]: With dead ends: 396 [2021-11-21 01:16:23,297 INFO L226 Difference]: Without dead ends: 394 [2021-11-21 01:16:23,299 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:23,305 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 181 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:23,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 479 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:16:23,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-21 01:16:23,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 226. [2021-11-21 01:16:23,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 107 states have (on average 2.1869158878504673) internal successors, (234), 223 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:23,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2021-11-21 01:16:23,408 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 4 [2021-11-21 01:16:23,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:23,408 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2021-11-21 01:16:23,409 INFO L471 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) [2021-11-21 01:16:23,409 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2021-11-21 01:16:23,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:16:23,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:23,409 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:16:23,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:16:23,411 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:23,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:23,415 INFO L85 PathProgramCache]: Analyzing trace with hash 18345168, now seen corresponding path program 1 times [2021-11-21 01:16:23,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:23,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098336046] [2021-11-21 01:16:23,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:23,417 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:23,525 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:23,526 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:23,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098336046] [2021-11-21 01:16:23,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098336046] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:23,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:23,528 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:23,528 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915953130] [2021-11-21 01:16:23,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:23,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:23,533 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:23,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:23,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:23,535 INFO L87 Difference]: Start difference. First operand 226 states and 251 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) [2021-11-21 01:16:23,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:23,872 INFO L93 Difference]: Finished difference Result 360 states and 405 transitions. [2021-11-21 01:16:23,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:23,873 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 [2021-11-21 01:16:23,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:23,876 INFO L225 Difference]: With dead ends: 360 [2021-11-21 01:16:23,877 INFO L226 Difference]: Without dead ends: 360 [2021-11-21 01:16:23,877 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:23,879 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 148 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:23,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 471 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:23,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-21 01:16:23,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 224. [2021-11-21 01:16:23,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 107 states have (on average 2.1682242990654204) internal successors, (232), 221 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:23,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2021-11-21 01:16:23,897 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 4 [2021-11-21 01:16:23,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:23,898 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2021-11-21 01:16:23,898 INFO L471 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) [2021-11-21 01:16:23,898 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2021-11-21 01:16:23,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-21 01:16:23,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:23,899 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-21 01:16:23,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:16:23,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:23,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:23,901 INFO L85 PathProgramCache]: Analyzing trace with hash 568154688, now seen corresponding path program 1 times [2021-11-21 01:16:23,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:23,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055624634] [2021-11-21 01:16:23,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:23,902 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:23,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:23,929 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:23,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055624634] [2021-11-21 01:16:23,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055624634] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:23,930 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:23,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:16:23,930 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901838247] [2021-11-21 01:16:23,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:23,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:23,932 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:23,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:23,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:23,933 INFO L87 Difference]: Start difference. First operand 224 states and 249 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:24,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:24,221 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2021-11-21 01:16:24,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:24,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-11-21 01:16:24,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:24,225 INFO L225 Difference]: With dead ends: 349 [2021-11-21 01:16:24,225 INFO L226 Difference]: Without dead ends: 348 [2021-11-21 01:16:24,225 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:16:24,227 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 125 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:24,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 311 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:24,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-21 01:16:24,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2021-11-21 01:16:24,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 110 states have (on average 2.1454545454545455) internal successors, (236), 224 states have internal predecessors, (236), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2021-11-21 01:16:24,242 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 5 [2021-11-21 01:16:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:24,242 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2021-11-21 01:16:24,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2021-11-21 01:16:24,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 01:16:24,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:24,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-21 01:16:24,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-21 01:16:24,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:24,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:24,245 INFO L85 PathProgramCache]: Analyzing trace with hash 450363646, now seen corresponding path program 1 times [2021-11-21 01:16:24,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:24,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054072063] [2021-11-21 01:16:24,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:24,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:24,322 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:24,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054072063] [2021-11-21 01:16:24,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054072063] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:24,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:24,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:24,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764880904] [2021-11-21 01:16:24,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:24,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:24,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:24,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:24,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:24,326 INFO L87 Difference]: Start difference. First operand 227 states and 253 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:24,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:24,593 INFO L93 Difference]: Finished difference Result 360 states and 404 transitions. [2021-11-21 01:16:24,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:24,594 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-21 01:16:24,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:24,596 INFO L225 Difference]: With dead ends: 360 [2021-11-21 01:16:24,597 INFO L226 Difference]: Without dead ends: 360 [2021-11-21 01:16:24,597 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:24,599 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 146 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:24,599 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 466 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:16:24,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-21 01:16:24,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 225. [2021-11-21 01:16:24,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 110 states have (on average 2.1272727272727274) internal successors, (234), 222 states have internal predecessors, (234), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:24,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2021-11-21 01:16:24,613 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 6 [2021-11-21 01:16:24,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:24,613 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2021-11-21 01:16:24,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2021-11-21 01:16:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-21 01:16:24,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:24,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-21 01:16:24,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:16:24,615 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:24,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:24,616 INFO L85 PathProgramCache]: Analyzing trace with hash 450363645, now seen corresponding path program 1 times [2021-11-21 01:16:24,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:24,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815682601] [2021-11-21 01:16:24,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:24,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:24,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:24,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:24,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:24,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815682601] [2021-11-21 01:16:24,671 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815682601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:24,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:24,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:24,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446761822] [2021-11-21 01:16:24,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:24,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:24,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:24,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:24,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:24,680 INFO L87 Difference]: Start difference. First operand 225 states and 251 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:24,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:24,992 INFO L93 Difference]: Finished difference Result 390 states and 440 transitions. [2021-11-21 01:16:24,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:24,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-21 01:16:24,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:24,996 INFO L225 Difference]: With dead ends: 390 [2021-11-21 01:16:24,997 INFO L226 Difference]: Without dead ends: 390 [2021-11-21 01:16:24,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:24,998 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 174 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:24,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 474 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:25,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-21 01:16:25,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2021-11-21 01:16:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 110 states have (on average 2.109090909090909) internal successors, (232), 220 states have internal predecessors, (232), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2021-11-21 01:16:25,009 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 6 [2021-11-21 01:16:25,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:25,010 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2021-11-21 01:16:25,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,010 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2021-11-21 01:16:25,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 01:16:25,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:25,011 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:25,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-21 01:16:25,012 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:25,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:25,012 INFO L85 PathProgramCache]: Analyzing trace with hash 535440203, now seen corresponding path program 1 times [2021-11-21 01:16:25,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:25,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743524902] [2021-11-21 01:16:25,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:25,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:25,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:25,058 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:25,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743524902] [2021-11-21 01:16:25,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743524902] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:25,059 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:25,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:16:25,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69252468] [2021-11-21 01:16:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:25,059 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:16:25,060 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:25,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:16:25,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:25,061 INFO L87 Difference]: Start difference. First operand 223 states and 249 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:25,171 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2021-11-21 01:16:25,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:16:25,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 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 7 [2021-11-21 01:16:25,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:25,180 INFO L225 Difference]: With dead ends: 229 [2021-11-21 01:16:25,180 INFO L226 Difference]: Without dead ends: 228 [2021-11-21 01:16:25,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:16:25,184 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 5 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:25,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 415 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:25,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-21 01:16:25,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2021-11-21 01:16:25,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.110091743119266) internal successors, (230), 219 states have internal predecessors, (230), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:25,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2021-11-21 01:16:25,203 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 7 [2021-11-21 01:16:25,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:25,203 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2021-11-21 01:16:25,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,204 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2021-11-21 01:16:25,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:16:25,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:25,205 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:25,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-21 01:16:25,205 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr89ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:25,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:25,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1154009547, now seen corresponding path program 1 times [2021-11-21 01:16:25,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:25,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970440199] [2021-11-21 01:16:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:25,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:25,316 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:25,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970440199] [2021-11-21 01:16:25,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970440199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:25,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:25,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:25,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947328060] [2021-11-21 01:16:25,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:25,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:16:25,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:25,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:16:25,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:16:25,319 INFO L87 Difference]: Start difference. First operand 222 states and 247 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:25,485 INFO L93 Difference]: Finished difference Result 353 states and 393 transitions. [2021-11-21 01:16:25,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:16:25,486 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-11-21 01:16:25,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:25,489 INFO L225 Difference]: With dead ends: 353 [2021-11-21 01:16:25,489 INFO L226 Difference]: Without dead ends: 353 [2021-11-21 01:16:25,489 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:25,491 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 535 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:25,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:16:25,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-21 01:16:25,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2021-11-21 01:16:25,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 109 states have (on average 2.1009174311926606) internal successors, (229), 219 states have internal predecessors, (229), 15 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:25,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 246 transitions. [2021-11-21 01:16:25,502 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 246 transitions. Word has length 11 [2021-11-21 01:16:25,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:25,503 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 246 transitions. [2021-11-21 01:16:25,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,504 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 246 transitions. [2021-11-21 01:16:25,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:16:25,504 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:25,505 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:25,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-21 01:16:25,505 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:25,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:25,506 INFO L85 PathProgramCache]: Analyzing trace with hash -901980672, now seen corresponding path program 1 times [2021-11-21 01:16:25,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:25,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453788733] [2021-11-21 01:16:25,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:25,507 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:25,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:25,602 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:25,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453788733] [2021-11-21 01:16:25,602 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453788733] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:25,602 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:25,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:25,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661016731] [2021-11-21 01:16:25,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:25,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:25,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:25,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:25,608 INFO L87 Difference]: Start difference. First operand 222 states and 246 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:25,922 INFO L93 Difference]: Finished difference Result 627 states and 702 transitions. [2021-11-21 01:16:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:16:25,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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 13 [2021-11-21 01:16:25,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:25,930 INFO L225 Difference]: With dead ends: 627 [2021-11-21 01:16:25,931 INFO L226 Difference]: Without dead ends: 627 [2021-11-21 01:16:25,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:25,933 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 1317 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:25,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1319 Valid, 528 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:25,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-11-21 01:16:25,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 247. [2021-11-21 01:16:25,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 135 states have (on average 2.066666666666667) internal successors, (279), 244 states have internal predecessors, (279), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:25,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2021-11-21 01:16:25,952 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 13 [2021-11-21 01:16:25,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:25,952 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2021-11-21 01:16:25,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:25,953 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2021-11-21 01:16:25,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:16:25,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:25,954 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:25,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-21 01:16:25,954 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:25,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:25,955 INFO L85 PathProgramCache]: Analyzing trace with hash -901991921, now seen corresponding path program 1 times [2021-11-21 01:16:25,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:25,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392767627] [2021-11-21 01:16:25,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:25,956 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:25,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:26,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:26,014 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:26,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392767627] [2021-11-21 01:16:26,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392767627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:26,015 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:26,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:26,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552688791] [2021-11-21 01:16:26,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:26,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:26,017 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:26,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:26,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:26,018 INFO L87 Difference]: Start difference. First operand 247 states and 295 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:26,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:26,545 INFO L93 Difference]: Finished difference Result 403 states and 470 transitions. [2021-11-21 01:16:26,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:16:26,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 01:16:26,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:26,549 INFO L225 Difference]: With dead ends: 403 [2021-11-21 01:16:26,550 INFO L226 Difference]: Without dead ends: 403 [2021-11-21 01:16:26,550 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:26,551 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 576 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 455 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 455 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:26,551 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [578 Valid, 413 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 455 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:16:26,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-21 01:16:26,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 238. [2021-11-21 01:16:26,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 135 states have (on average 1.9777777777777779) internal successors, (267), 235 states have internal predecessors, (267), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:26,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2021-11-21 01:16:26,569 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 13 [2021-11-21 01:16:26,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:26,569 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2021-11-21 01:16:26,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:26,569 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2021-11-21 01:16:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:16:26,570 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:26,570 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:26,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-21 01:16:26,571 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:26,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:26,571 INFO L85 PathProgramCache]: Analyzing trace with hash -901991920, now seen corresponding path program 1 times [2021-11-21 01:16:26,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:26,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157420736] [2021-11-21 01:16:26,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:26,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:26,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:26,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:26,694 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:26,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157420736] [2021-11-21 01:16:26,694 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157420736] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:26,694 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:26,694 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:16:26,694 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946959545] [2021-11-21 01:16:26,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:26,696 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:26,696 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:26,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:26,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:26,701 INFO L87 Difference]: Start difference. First operand 238 states and 283 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:27,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:27,245 INFO L93 Difference]: Finished difference Result 534 states and 596 transitions. [2021-11-21 01:16:27,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:16:27,246 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-21 01:16:27,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:27,250 INFO L225 Difference]: With dead ends: 534 [2021-11-21 01:16:27,250 INFO L226 Difference]: Without dead ends: 534 [2021-11-21 01:16:27,251 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:27,251 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 804 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:27,252 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [804 Valid, 441 Invalid, 404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:16:27,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-21 01:16:27,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2021-11-21 01:16:27,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 155 states have (on average 1.8774193548387097) internal successors, (291), 255 states have internal predecessors, (291), 14 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:27,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2021-11-21 01:16:27,264 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 13 [2021-11-21 01:16:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:27,264 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2021-11-21 01:16:27,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2021-11-21 01:16:27,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:16:27,266 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:27,266 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:27,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-21 01:16:27,266 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:27,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:27,267 INFO L85 PathProgramCache]: Analyzing trace with hash -256693872, now seen corresponding path program 1 times [2021-11-21 01:16:27,267 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:27,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963290143] [2021-11-21 01:16:27,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:27,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:27,335 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:16:27,335 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:27,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963290143] [2021-11-21 01:16:27,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963290143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:27,335 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:27,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:27,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307491252] [2021-11-21 01:16:27,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:27,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:27,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:27,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:27,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:27,337 INFO L87 Difference]: Start difference. First operand 258 states and 307 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:27,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:27,626 INFO L93 Difference]: Finished difference Result 332 states and 387 transitions. [2021-11-21 01:16:27,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:16:27,627 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 20 [2021-11-21 01:16:27,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:27,630 INFO L225 Difference]: With dead ends: 332 [2021-11-21 01:16:27,630 INFO L226 Difference]: Without dead ends: 332 [2021-11-21 01:16:27,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:27,631 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 95 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 662 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:27,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 662 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:16:27,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-11-21 01:16:27,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 257. [2021-11-21 01:16:27,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 155 states have (on average 1.864516129032258) internal successors, (289), 254 states have internal predecessors, (289), 13 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:27,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2021-11-21 01:16:27,655 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 20 [2021-11-21 01:16:27,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:27,655 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2021-11-21 01:16:27,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:27,656 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2021-11-21 01:16:27,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 01:16:27,657 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:27,657 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:27,657 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-21 01:16:27,658 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:27,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:27,658 INFO L85 PathProgramCache]: Analyzing trace with hash -937110950, now seen corresponding path program 1 times [2021-11-21 01:16:27,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:27,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518286904] [2021-11-21 01:16:27,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:27,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:27,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:16:27,762 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:27,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518286904] [2021-11-21 01:16:27,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518286904] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:27,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:27,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-21 01:16:27,763 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129937260] [2021-11-21 01:16:27,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:27,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:16:27,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:27,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:16:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:16:27,766 INFO L87 Difference]: Start difference. First operand 257 states and 304 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:28,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:28,007 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2021-11-21 01:16:28,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:16:28,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 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 20 [2021-11-21 01:16:28,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:28,010 INFO L225 Difference]: With dead ends: 256 [2021-11-21 01:16:28,010 INFO L226 Difference]: Without dead ends: 256 [2021-11-21 01:16:28,011 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:16:28,011 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 18 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 673 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:28,012 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 673 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:16:28,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-21 01:16:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-21 01:16:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8516129032258064) internal successors, (287), 253 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2021-11-21 01:16:28,021 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 20 [2021-11-21 01:16:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:28,022 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2021-11-21 01:16:28,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2021-11-21 01:16:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:16:28,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:28,024 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:28,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-21 01:16:28,024 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:28,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:28,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1946598122, now seen corresponding path program 1 times [2021-11-21 01:16:28,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:28,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913699764] [2021-11-21 01:16:28,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:28,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:28,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:28,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:28,113 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:28,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913699764] [2021-11-21 01:16:28,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913699764] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:28,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:28,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:28,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884665877] [2021-11-21 01:16:28,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:28,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:16:28,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:28,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:16:28,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:16:28,117 INFO L87 Difference]: Start difference. First operand 256 states and 301 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:28,618 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2021-11-21 01:16:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:28,618 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 23 [2021-11-21 01:16:28,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:28,623 INFO L225 Difference]: With dead ends: 538 [2021-11-21 01:16:28,623 INFO L226 Difference]: Without dead ends: 538 [2021-11-21 01:16:28,623 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:16:28,624 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 1161 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1163 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:28,625 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1163 Valid, 808 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:16:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-21 01:16:28,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 256. [2021-11-21 01:16:28,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8451612903225807) internal successors, (286), 253 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:28,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-21 01:16:28,637 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 23 [2021-11-21 01:16:28,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:28,638 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-21 01:16:28,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:28,638 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-21 01:16:28,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:16:28,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:28,639 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:16:28,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-21 01:16:28,640 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:28,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:28,641 INFO L85 PathProgramCache]: Analyzing trace with hash -479719491, now seen corresponding path program 1 times [2021-11-21 01:16:28,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:28,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160032400] [2021-11-21 01:16:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:28,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:28,729 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:28,730 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:28,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160032400] [2021-11-21 01:16:28,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160032400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:28,730 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:28,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:28,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541225468] [2021-11-21 01:16:28,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:28,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:16:28,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:28,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:16:28,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:16:28,732 INFO L87 Difference]: Start difference. First operand 256 states and 300 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:29,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:29,192 INFO L93 Difference]: Finished difference Result 537 states and 593 transitions. [2021-11-21 01:16:29,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:29,193 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 23 [2021-11-21 01:16:29,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:29,196 INFO L225 Difference]: With dead ends: 537 [2021-11-21 01:16:29,196 INFO L226 Difference]: Without dead ends: 537 [2021-11-21 01:16:29,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:16:29,197 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 1157 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 352 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:29,198 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 808 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:16:29,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2021-11-21 01:16:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 256. [2021-11-21 01:16:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 155 states have (on average 1.8387096774193548) internal successors, (285), 253 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2021-11-21 01:16:29,209 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 23 [2021-11-21 01:16:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:29,209 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2021-11-21 01:16:29,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2021-11-21 01:16:29,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:29,211 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:29,211 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:29,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-21 01:16:29,212 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:29,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:29,212 INFO L85 PathProgramCache]: Analyzing trace with hash 214784498, now seen corresponding path program 1 times [2021-11-21 01:16:29,213 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:29,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553742555] [2021-11-21 01:16:29,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:29,213 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:29,309 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:29,310 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:29,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553742555] [2021-11-21 01:16:29,310 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553742555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:29,310 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:29,310 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:29,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738527629] [2021-11-21 01:16:29,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:29,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:16:29,311 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:29,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:16:29,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:29,311 INFO L87 Difference]: Start difference. First operand 256 states and 299 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:30,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:30,090 INFO L93 Difference]: Finished difference Result 590 states and 661 transitions. [2021-11-21 01:16:30,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:16:30,091 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 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 24 [2021-11-21 01:16:30,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:30,095 INFO L225 Difference]: With dead ends: 590 [2021-11-21 01:16:30,096 INFO L226 Difference]: Without dead ends: 590 [2021-11-21 01:16:30,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:16:30,100 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 1298 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:30,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1300 Valid, 633 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 01:16:30,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-11-21 01:16:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 257. [2021-11-21 01:16:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8397435897435896) internal successors, (287), 254 states have internal predecessors, (287), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:30,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 301 transitions. [2021-11-21 01:16:30,115 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 301 transitions. Word has length 24 [2021-11-21 01:16:30,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:30,116 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 301 transitions. [2021-11-21 01:16:30,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 301 transitions. [2021-11-21 01:16:30,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:30,117 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:30,117 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:30,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-21 01:16:30,118 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:30,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash 214784499, now seen corresponding path program 1 times [2021-11-21 01:16:30,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:30,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031574927] [2021-11-21 01:16:30,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:30,294 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:30,294 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:30,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031574927] [2021-11-21 01:16:30,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031574927] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:30,297 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:30,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:16:30,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130603148] [2021-11-21 01:16:30,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:30,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:16:30,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:30,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:16:30,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:16:30,300 INFO L87 Difference]: Start difference. First operand 257 states and 301 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:31,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:31,084 INFO L93 Difference]: Finished difference Result 595 states and 659 transitions. [2021-11-21 01:16:31,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:31,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2021-11-21 01:16:31,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:31,089 INFO L225 Difference]: With dead ends: 595 [2021-11-21 01:16:31,090 INFO L226 Difference]: Without dead ends: 595 [2021-11-21 01:16:31,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:16:31,091 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1061 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1061 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:31,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1061 Valid, 670 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 01:16:31,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-11-21 01:16:31,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 257. [2021-11-21 01:16:31,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8333333333333333) internal successors, (286), 254 states have internal predecessors, (286), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:31,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2021-11-21 01:16:31,108 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 24 [2021-11-21 01:16:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:31,108 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2021-11-21 01:16:31,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2021-11-21 01:16:31,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:31,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:31,116 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:31,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-21 01:16:31,116 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:31,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:31,117 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692204, now seen corresponding path program 1 times [2021-11-21 01:16:31,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:31,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502854341] [2021-11-21 01:16:31,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:31,118 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:31,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:31,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:31,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:31,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502854341] [2021-11-21 01:16:31,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502854341] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:31,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:31,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-21 01:16:31,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821466263] [2021-11-21 01:16:31,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:31,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:16:31,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:31,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:16:31,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:16:31,256 INFO L87 Difference]: Start difference. First operand 257 states and 300 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:31,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:31,998 INFO L93 Difference]: Finished difference Result 588 states and 659 transitions. [2021-11-21 01:16:32,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:16:32,005 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 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 24 [2021-11-21 01:16:32,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:32,009 INFO L225 Difference]: With dead ends: 588 [2021-11-21 01:16:32,009 INFO L226 Difference]: Without dead ends: 588 [2021-11-21 01:16:32,010 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:16:32,011 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 978 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:32,011 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 717 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:16:32,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-11-21 01:16:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 257. [2021-11-21 01:16:32,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8269230769230769) internal successors, (285), 254 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 299 transitions. [2021-11-21 01:16:32,028 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 299 transitions. Word has length 24 [2021-11-21 01:16:32,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:32,029 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 299 transitions. [2021-11-21 01:16:32,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:32,030 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 299 transitions. [2021-11-21 01:16:32,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:16:32,030 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:32,031 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:32,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-21 01:16:32,031 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:32,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692203, now seen corresponding path program 1 times [2021-11-21 01:16:32,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:32,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678061511] [2021-11-21 01:16:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:32,033 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:32,211 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:32,211 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:32,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678061511] [2021-11-21 01:16:32,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678061511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:32,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:32,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:16:32,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132889548] [2021-11-21 01:16:32,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:32,213 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:16:32,213 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:32,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:16:32,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:16:32,214 INFO L87 Difference]: Start difference. First operand 257 states and 299 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:32,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:32,961 INFO L93 Difference]: Finished difference Result 593 states and 657 transitions. [2021-11-21 01:16:32,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:16:32,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 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 24 [2021-11-21 01:16:32,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:32,967 INFO L225 Difference]: With dead ends: 593 [2021-11-21 01:16:32,967 INFO L226 Difference]: Without dead ends: 593 [2021-11-21 01:16:32,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:16:32,968 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1053 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1053 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 635 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:32,969 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 670 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:16:32,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-21 01:16:32,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 257. [2021-11-21 01:16:32,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 257 states, 156 states have (on average 1.8205128205128205) internal successors, (284), 254 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:32,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2021-11-21 01:16:32,981 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 24 [2021-11-21 01:16:32,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:32,982 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2021-11-21 01:16:32,982 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:32,983 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2021-11-21 01:16:32,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:32,984 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:32,984 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:32,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-21 01:16:32,984 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:32,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:32,985 INFO L85 PathProgramCache]: Analyzing trace with hash -856061257, now seen corresponding path program 1 times [2021-11-21 01:16:32,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:32,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835365414] [2021-11-21 01:16:32,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:32,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:33,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:33,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:33,153 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:33,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835365414] [2021-11-21 01:16:33,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835365414] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:33,153 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:33,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 01:16:33,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584114769] [2021-11-21 01:16:33,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:33,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:16:33,155 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:33,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:16:33,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:33,156 INFO L87 Difference]: Start difference. First operand 257 states and 298 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:34,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:34,156 INFO L93 Difference]: Finished difference Result 532 states and 587 transitions. [2021-11-21 01:16:34,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:16:34,157 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 27 [2021-11-21 01:16:34,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:34,161 INFO L225 Difference]: With dead ends: 532 [2021-11-21 01:16:34,161 INFO L226 Difference]: Without dead ends: 532 [2021-11-21 01:16:34,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-11-21 01:16:34,163 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1082 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1082 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:34,163 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 1103 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:16:34,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-11-21 01:16:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 258. [2021-11-21 01:16:34,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8152866242038217) internal successors, (285), 255 states have internal predecessors, (285), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:34,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2021-11-21 01:16:34,175 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 27 [2021-11-21 01:16:34,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:34,176 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2021-11-21 01:16:34,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2021-11-21 01:16:34,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:16:34,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:34,178 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:34,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-21 01:16:34,178 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:34,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:34,179 INFO L85 PathProgramCache]: Analyzing trace with hash -897960630, now seen corresponding path program 1 times [2021-11-21 01:16:34,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:34,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139907283] [2021-11-21 01:16:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:34,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:34,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:34,375 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:34,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139907283] [2021-11-21 01:16:34,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139907283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:16:34,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:16:34,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 01:16:34,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738997241] [2021-11-21 01:16:34,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:16:34,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:16:34,376 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:16:34,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:16:34,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:16:34,377 INFO L87 Difference]: Start difference. First operand 258 states and 299 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:35,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:16:35,425 INFO L93 Difference]: Finished difference Result 531 states and 585 transitions. [2021-11-21 01:16:35,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-21 01:16:35,426 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 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 27 [2021-11-21 01:16:35,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:16:35,433 INFO L225 Difference]: With dead ends: 531 [2021-11-21 01:16:35,433 INFO L226 Difference]: Without dead ends: 531 [2021-11-21 01:16:35,434 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2021-11-21 01:16:35,436 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1078 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 690 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:16:35,436 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1078 Valid, 1103 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 01:16:35,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-21 01:16:35,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 258. [2021-11-21 01:16:35,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 157 states have (on average 1.8089171974522293) internal successors, (284), 255 states have internal predecessors, (284), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:16:35,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2021-11-21 01:16:35,458 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 27 [2021-11-21 01:16:35,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:16:35,458 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-11-21 01:16:35,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:16:35,459 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2021-11-21 01:16:35,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:16:35,462 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:16:35,462 INFO L514 BasicCegarLoop]: 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] [2021-11-21 01:16:35,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-21 01:16:35,463 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:16:35,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:16:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -2067233019, now seen corresponding path program 1 times [2021-11-21 01:16:35,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:16:35,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023318393] [2021-11-21 01:16:35,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:35,467 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:16:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:35,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:35,751 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:16:35,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023318393] [2021-11-21 01:16:35,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023318393] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:16:35,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [573695307] [2021-11-21 01:16:35,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:16:35,753 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:16:35,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:16:35,755 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:16:35,775 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:16:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:16:35,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-21 01:16:35,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:16:36,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:16:36,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:16:36,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-21 01:16:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-21 01:16:36,335 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:36,335 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:16:36,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:16:36,654 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [573695307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:16:36,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1071485715] [2021-11-21 01:16:36,683 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-21 01:16:36,683 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:16:36,690 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:16:36,698 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:16:36,698 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:16:36,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:36,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:36,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:37,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:37,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:37,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:37,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:16:37,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:37,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:37,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:16:37,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:16:37,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:16:37,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:16:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:16:37,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:37,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:16:38,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:16:38,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,453 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:16:38,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:16:38,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,478 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:16:38,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 195 treesize of output 181 [2021-11-21 01:16:38,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,526 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:16:38,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 180 treesize of output 185 [2021-11-21 01:16:38,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:38,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:38,865 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-21 01:16:38,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 285 treesize of output 237 [2021-11-21 01:16:39,009 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:16:39,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 266 treesize of output 278 [2021-11-21 01:16:39,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:39,065 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-21 01:16:39,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 265 treesize of output 258 [2021-11-21 01:16:39,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,088 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:39,105 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:16:39,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 246 treesize of output 243 [2021-11-21 01:16:39,465 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:16:39,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 217 [2021-11-21 01:16:39,536 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:16:39,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 246 treesize of output 254 [2021-11-21 01:16:39,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,558 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:39,569 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:16:39,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 242 treesize of output 225 [2021-11-21 01:16:39,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:39,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:39,982 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:39,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,017 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-21 01:16:40,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 514 treesize of output 476 [2021-11-21 01:16:40,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:40,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:40,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:40,048 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,049 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,083 INFO L354 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2021-11-21 01:16:40,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 639 treesize of output 642 [2021-11-21 01:16:40,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:40,108 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,109 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:40,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:40,153 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-21 01:16:40,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 650 treesize of output 617 [2021-11-21 01:16:42,655 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-21 01:16:42,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 594 treesize of output 617 [2021-11-21 01:16:45,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:45,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:45,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:45,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:45,570 INFO L354 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2021-11-21 01:16:45,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 18 case distinctions, treesize of input 796 treesize of output 539 [2021-11-21 01:16:45,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:45,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:45,595 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:45,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:45,718 INFO L354 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2021-11-21 01:16:45,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 case distinctions, treesize of input 809 treesize of output 782 [2021-11-21 01:16:45,775 INFO L354 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2021-11-21 01:16:45,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 822 treesize of output 755 [2021-11-21 01:16:47,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,083 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,084 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,089 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,185 INFO L354 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2021-11-21 01:16:47,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 866 treesize of output 593 [2021-11-21 01:16:47,390 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-21 01:16:47,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 847 treesize of output 867 [2021-11-21 01:16:47,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,419 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,422 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,513 INFO L354 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2021-11-21 01:16:47,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 863 treesize of output 810 [2021-11-21 01:16:47,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,534 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:47,598 INFO L354 Elim1Store]: treesize reduction 166, result has 22.8 percent of original size [2021-11-21 01:16:47,598 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 844 treesize of output 802 [2021-11-21 01:16:50,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:50,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:50,190 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:50,295 INFO L354 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2021-11-21 01:16:50,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 894 treesize of output 616 [2021-11-21 01:16:50,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:50,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:50,350 INFO L354 Elim1Store]: treesize reduction 196, result has 11.3 percent of original size [2021-11-21 01:16:50,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 907 treesize of output 837 [2021-11-21 01:16:50,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:50,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:50,368 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:16:50,536 INFO L354 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2021-11-21 01:16:50,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 892 treesize of output 868 [2021-11-21 01:16:51,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:16:51,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-21 01:16:51,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:16:51,957 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:16:51,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:52,043 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:16:52,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:16:52,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:16:52,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:16:52,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:16:52,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:52,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:16:52,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:16:52,348 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-21 01:16:52,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-21 01:16:52,420 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:16:52,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:16:52,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:16:52,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2021-11-21 01:16:52,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-21 01:16:52,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:16:52,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:16:52,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:16:52,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:16:52,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-21 01:17:01,488 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:17:01,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 240 treesize of output 260 [2021-11-21 01:17:02,652 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:17:02,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:02,972 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:17:02,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 171 [2021-11-21 01:17:02,992 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:17:02,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 166 [2021-11-21 01:17:03,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:03,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:03,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:03,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:03,640 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:17:03,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 223 treesize of output 212 [2021-11-21 01:17:03,718 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:17:03,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 209 treesize of output 230 [2021-11-21 01:17:03,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:03,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:03,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 222 treesize of output 224 [2021-11-21 01:17:05,337 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:17:05,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:17:05,440 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:17:05,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:17:05,848 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:17:07,992 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:17:07,992 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:17:07,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 14 [2021-11-21 01:17:07,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001635675] [2021-11-21 01:17:07,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:17:07,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-21 01:17:07,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:07,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-21 01:17:07,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=933, Unknown=0, NotChecked=0, Total=1056 [2021-11-21 01:17:07,995 INFO L87 Difference]: Start difference. First operand 258 states and 298 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:08,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:08,599 INFO L93 Difference]: Finished difference Result 430 states and 487 transitions. [2021-11-21 01:17:08,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:17:08,599 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 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 28 [2021-11-21 01:17:08,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:08,602 INFO L225 Difference]: With dead ends: 430 [2021-11-21 01:17:08,603 INFO L226 Difference]: Without dead ends: 430 [2021-11-21 01:17:08,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=137, Invalid=1053, Unknown=0, NotChecked=0, Total=1190 [2021-11-21 01:17:08,606 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 261 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1659 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:08,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 1659 Invalid, 665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-21 01:17:08,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-21 01:17:08,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 269. [2021-11-21 01:17:08,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 168 states have (on average 1.7619047619047619) internal successors, (296), 266 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:08,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 310 transitions. [2021-11-21 01:17:08,619 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 310 transitions. Word has length 28 [2021-11-21 01:17:08,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:08,620 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 310 transitions. [2021-11-21 01:17:08,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 14 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:08,620 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 310 transitions. [2021-11-21 01:17:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:17:08,625 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:08,625 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-11-21 01:17:08,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:17:08,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-21 01:17:08,845 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr31REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:08,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:08,846 INFO L85 PathProgramCache]: Analyzing trace with hash -260397027, now seen corresponding path program 1 times [2021-11-21 01:17:08,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:08,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223407463] [2021-11-21 01:17:08,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:08,846 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:08,942 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:08,942 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:08,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223407463] [2021-11-21 01:17:08,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223407463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:08,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:08,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:17:08,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052137338] [2021-11-21 01:17:08,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:08,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:17:08,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:17:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:17:08,944 INFO L87 Difference]: Start difference. First operand 269 states and 310 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:09,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:09,339 INFO L93 Difference]: Finished difference Result 441 states and 486 transitions. [2021-11-21 01:17:09,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:17:09,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 31 [2021-11-21 01:17:09,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:09,351 INFO L225 Difference]: With dead ends: 441 [2021-11-21 01:17:09,351 INFO L226 Difference]: Without dead ends: 441 [2021-11-21 01:17:09,352 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:17:09,354 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 428 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 413 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:09,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:17:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-11-21 01:17:09,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 274. [2021-11-21 01:17:09,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 173 states have (on average 1.76878612716763) internal successors, (306), 271 states have internal predecessors, (306), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:09,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2021-11-21 01:17:09,369 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 31 [2021-11-21 01:17:09,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:09,369 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2021-11-21 01:17:09,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:09,370 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2021-11-21 01:17:09,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-21 01:17:09,371 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:09,371 INFO L514 BasicCegarLoop]: 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, 1, 1] [2021-11-21 01:17:09,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-21 01:17:09,371 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr30REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:09,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -260397028, now seen corresponding path program 1 times [2021-11-21 01:17:09,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:09,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677240888] [2021-11-21 01:17:09,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:09,373 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:09,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:17:09,428 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:09,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677240888] [2021-11-21 01:17:09,428 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677240888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:09,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:09,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:17:09,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639112660] [2021-11-21 01:17:09,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:09,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:17:09,430 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:09,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:17:09,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:17:09,430 INFO L87 Difference]: Start difference. First operand 274 states and 320 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:09,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:09,735 INFO L93 Difference]: Finished difference Result 372 states and 430 transitions. [2021-11-21 01:17:09,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:17:09,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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 31 [2021-11-21 01:17:09,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:09,738 INFO L225 Difference]: With dead ends: 372 [2021-11-21 01:17:09,738 INFO L226 Difference]: Without dead ends: 372 [2021-11-21 01:17:09,738 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:17:09,739 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 306 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:09,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 309 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:17:09,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-21 01:17:09,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 274. [2021-11-21 01:17:09,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7428571428571429) internal successors, (305), 271 states have internal predecessors, (305), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 319 transitions. [2021-11-21 01:17:09,750 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 319 transitions. Word has length 31 [2021-11-21 01:17:09,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:09,750 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 319 transitions. [2021-11-21 01:17:09,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:09,751 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 319 transitions. [2021-11-21 01:17:09,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:17:09,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:09,752 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-11-21 01:17:09,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-21 01:17:09,752 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:09,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:09,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1131391516, now seen corresponding path program 1 times [2021-11-21 01:17:09,753 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:09,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621560266] [2021-11-21 01:17:09,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:09,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:09,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:09,803 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:09,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621560266] [2021-11-21 01:17:09,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621560266] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:09,804 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:09,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:17:09,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136112252] [2021-11-21 01:17:09,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:09,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:17:09,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:09,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:17:09,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:17:09,806 INFO L87 Difference]: Start difference. First operand 274 states and 319 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:10,008 INFO L93 Difference]: Finished difference Result 371 states and 412 transitions. [2021-11-21 01:17:10,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 01:17:10,009 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 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 33 [2021-11-21 01:17:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:10,012 INFO L225 Difference]: With dead ends: 371 [2021-11-21 01:17:10,012 INFO L226 Difference]: Without dead ends: 371 [2021-11-21 01:17:10,012 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:17:10,013 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 710 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 667 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:10,014 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [712 Valid, 667 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:17:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-21 01:17:10,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2021-11-21 01:17:10,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.737142857142857) internal successors, (304), 271 states have internal predecessors, (304), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:10,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2021-11-21 01:17:10,025 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 33 [2021-11-21 01:17:10,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:10,025 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2021-11-21 01:17:10,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,026 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2021-11-21 01:17:10,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-21 01:17:10,026 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:10,026 INFO L514 BasicCegarLoop]: 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, 1, 1, 1] [2021-11-21 01:17:10,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-21 01:17:10,027 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:10,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:10,028 INFO L85 PathProgramCache]: Analyzing trace with hash 517949580, now seen corresponding path program 1 times [2021-11-21 01:17:10,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:10,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360738138] [2021-11-21 01:17:10,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:10,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:10,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:10,079 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:10,079 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:10,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360738138] [2021-11-21 01:17:10,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360738138] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:10,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:10,080 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:17:10,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548150989] [2021-11-21 01:17:10,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:10,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:17:10,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:10,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:17:10,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:17:10,082 INFO L87 Difference]: Start difference. First operand 274 states and 318 transitions. Second operand has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:10,384 INFO L93 Difference]: Finished difference Result 480 states and 533 transitions. [2021-11-21 01:17:10,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:17:10,385 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2021-11-21 01:17:10,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:10,388 INFO L225 Difference]: With dead ends: 480 [2021-11-21 01:17:10,389 INFO L226 Difference]: Without dead ends: 480 [2021-11-21 01:17:10,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-21 01:17:10,390 INFO L933 BasicCegarLoop]: 244 mSDtfsCounter, 972 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:10,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 776 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-21 01:17:10,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-11-21 01:17:10,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 274. [2021-11-21 01:17:10,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 175 states have (on average 1.7314285714285715) internal successors, (303), 271 states have internal predecessors, (303), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:10,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 317 transitions. [2021-11-21 01:17:10,409 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 317 transitions. Word has length 32 [2021-11-21 01:17:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:10,409 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 317 transitions. [2021-11-21 01:17:10,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 6 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,410 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 317 transitions. [2021-11-21 01:17:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:17:10,410 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:10,410 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-11-21 01:17:10,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-21 01:17:10,411 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:10,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392727, now seen corresponding path program 1 times [2021-11-21 01:17:10,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:10,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876970204] [2021-11-21 01:17:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:10,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:10,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:17:10,497 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:10,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876970204] [2021-11-21 01:17:10,497 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876970204] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:10,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:10,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:17:10,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358744140] [2021-11-21 01:17:10,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:10,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:17:10,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:10,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:17:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:17:10,502 INFO L87 Difference]: Start difference. First operand 274 states and 317 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:10,792 INFO L93 Difference]: Finished difference Result 323 states and 370 transitions. [2021-11-21 01:17:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:17:10,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-21 01:17:10,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:10,797 INFO L225 Difference]: With dead ends: 323 [2021-11-21 01:17:10,797 INFO L226 Difference]: Without dead ends: 323 [2021-11-21 01:17:10,797 INFO L932 BasicCegarLoop]: 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 [2021-11-21 01:17:10,798 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 183 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:10,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 295 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:17:10,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-21 01:17:10,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 271. [2021-11-21 01:17:10,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.697142857142857) internal successors, (297), 268 states have internal predecessors, (297), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:10,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2021-11-21 01:17:10,822 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 33 [2021-11-21 01:17:10,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:10,822 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2021-11-21 01:17:10,822 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:10,822 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2021-11-21 01:17:10,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:17:10,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:10,823 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1] [2021-11-21 01:17:10,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-21 01:17:10,824 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr68REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:10,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:10,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392726, now seen corresponding path program 1 times [2021-11-21 01:17:10,825 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:10,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110794094] [2021-11-21 01:17:10,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:10,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:10,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:10,934 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:10,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110794094] [2021-11-21 01:17:10,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110794094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:17:10,936 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:17:10,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:17:10,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127544586] [2021-11-21 01:17:10,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:17:10,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-21 01:17:10,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:10,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-21 01:17:10,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:17:10,938 INFO L87 Difference]: Start difference. First operand 271 states and 311 transitions. Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 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) [2021-11-21 01:17:11,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:11,357 INFO L93 Difference]: Finished difference Result 365 states and 404 transitions. [2021-11-21 01:17:11,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:17:11,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 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 33 [2021-11-21 01:17:11,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:11,360 INFO L225 Difference]: With dead ends: 365 [2021-11-21 01:17:11,361 INFO L226 Difference]: Without dead ends: 365 [2021-11-21 01:17:11,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:17:11,361 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 312 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:11,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 426 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:17:11,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-21 01:17:11,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 271. [2021-11-21 01:17:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 175 states have (on average 1.68) internal successors, (294), 268 states have internal predecessors, (294), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2021-11-21 01:17:11,373 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 33 [2021-11-21 01:17:11,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:11,373 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2021-11-21 01:17:11,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.25) internal successors, (33), 5 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) [2021-11-21 01:17:11,373 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2021-11-21 01:17:11,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:17:11,374 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:11,374 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:11,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-21 01:17:11,375 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:11,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:11,376 INFO L85 PathProgramCache]: Analyzing trace with hash -100268176, now seen corresponding path program 2 times [2021-11-21 01:17:11,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:11,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960121774] [2021-11-21 01:17:11,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:11,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:11,670 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:11,670 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960121774] [2021-11-21 01:17:11,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960121774] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:17:11,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399557557] [2021-11-21 01:17:11,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-21 01:17:11,671 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:11,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:11,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:17:11,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:17:11,796 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-21 01:17:11,796 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-21 01:17:11,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-21 01:17:11,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:11,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:11,842 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:17:11,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2021-11-21 01:17:11,896 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-21 01:17:11,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:17:11,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-21 01:17:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:11,980 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 27 [2021-11-21 01:17:12,317 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:17:12,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 19 [2021-11-21 01:17:12,342 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:12,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:17:12,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-21 01:17:12,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:12,765 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:12,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399557557] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:17:12,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2087168751] [2021-11-21 01:17:12,768 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-21 01:17:12,768 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:17:12,769 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:17:12,769 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:17:12,769 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:17:12,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:12,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:12,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:12,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:12,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:13,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:13,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:13,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:13,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:17:13,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:13,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:17:13,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:17:13,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:17:13,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:17:13,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:17:13,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:17:13,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:13,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:17:13,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,005 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:17:14,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:17:14,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,052 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:17:14,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 195 treesize of output 200 [2021-11-21 01:17:14,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,073 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:17:14,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 191 treesize of output 177 [2021-11-21 01:17:14,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,404 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:14,421 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-21 01:17:14,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 285 treesize of output 237 [2021-11-21 01:17:14,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:14,450 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:17:14,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 266 treesize of output 263 [2021-11-21 01:17:14,562 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:17:14,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 265 treesize of output 277 [2021-11-21 01:17:14,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,580 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:14,602 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-21 01:17:14,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 264 treesize of output 257 [2021-11-21 01:17:14,945 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:17:14,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 217 [2021-11-21 01:17:14,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:14,965 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:14,972 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:17:14,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 229 [2021-11-21 01:17:15,036 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:17:15,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 231 treesize of output 239 [2021-11-21 01:17:15,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,332 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,333 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,364 INFO L354 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2021-11-21 01:17:15,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 514 treesize of output 517 [2021-11-21 01:17:15,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,388 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,389 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,420 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-21 01:17:15,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 525 treesize of output 487 [2021-11-21 01:17:15,438 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:15,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:15,489 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-21 01:17:15,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 650 treesize of output 617 [2021-11-21 01:17:17,546 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-21 01:17:17,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 601 treesize of output 622 [2021-11-21 01:17:19,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:19,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:20,022 INFO L354 Elim1Store]: treesize reduction 228, result has 14.0 percent of original size [2021-11-21 01:17:20,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 18 case distinctions, treesize of input 796 treesize of output 539 [2021-11-21 01:17:20,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:20,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:20,225 INFO L354 Elim1Store]: treesize reduction 332, result has 15.9 percent of original size [2021-11-21 01:17:20,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 case distinctions, treesize of input 809 treesize of output 782 [2021-11-21 01:17:20,336 INFO L354 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2021-11-21 01:17:20,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 822 treesize of output 755 [2021-11-21 01:17:22,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,091 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:22,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,386 INFO L354 Elim1Store]: treesize reduction 326, result has 9.7 percent of original size [2021-11-21 01:17:22,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 25 case distinctions, treesize of input 873 treesize of output 600 [2021-11-21 01:17:22,665 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-21 01:17:22,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 854 treesize of output 872 [2021-11-21 01:17:22,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,697 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:22,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,864 INFO L354 Elim1Store]: treesize reduction 426, result has 8.8 percent of original size [2021-11-21 01:17:22,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 case distinctions, treesize of input 863 treesize of output 810 [2021-11-21 01:17:22,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:22,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:22,981 INFO L354 Elim1Store]: treesize reduction 166, result has 22.8 percent of original size [2021-11-21 01:17:22,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 844 treesize of output 802 [2021-11-21 01:17:25,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:25,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:25,978 INFO L354 Elim1Store]: treesize reduction 288, result has 13.3 percent of original size [2021-11-21 01:17:25,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 25 case distinctions, treesize of input 894 treesize of output 616 [2021-11-21 01:17:26,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:26,004 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:26,070 INFO L354 Elim1Store]: treesize reduction 196, result has 11.3 percent of original size [2021-11-21 01:17:26,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 907 treesize of output 837 [2021-11-21 01:17:26,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:26,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:26,279 INFO L354 Elim1Store]: treesize reduction 408, result has 14.6 percent of original size [2021-11-21 01:17:26,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 25 case distinctions, treesize of input 892 treesize of output 868 [2021-11-21 01:17:27,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:17:27,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:17:27,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-21 01:17:28,109 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:17:28,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:28,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2021-11-21 01:17:28,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:28,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:17:28,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:28,323 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-21 01:17:28,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-21 01:17:28,387 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:17:28,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:17:28,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:17:28,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:28,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2021-11-21 01:17:28,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:28,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-21 01:17:28,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:17:28,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:17:28,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:17:28,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:17:28,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:17:28,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 37 [2021-11-21 01:17:37,976 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:17:37,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 231 treesize of output 251 [2021-11-21 01:17:39,352 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:17:39,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:39,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:39,655 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:17:39,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 159 treesize of output 168 [2021-11-21 01:17:39,683 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:17:39,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 163 [2021-11-21 01:17:40,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:40,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:40,670 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:17:40,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 214 treesize of output 235 [2021-11-21 01:17:40,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:40,724 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:17:40,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 227 treesize of output 222 [2021-11-21 01:17:40,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:40,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:40,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 221 [2021-11-21 01:17:42,137 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:17:42,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:17:42,412 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:17:44,901 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:17:44,902 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:17:44,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 12] total 26 [2021-11-21 01:17:44,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963639304] [2021-11-21 01:17:44,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:17:44,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-21 01:17:44,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:17:44,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-21 01:17:44,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1825, Unknown=0, NotChecked=0, Total=2070 [2021-11-21 01:17:44,905 INFO L87 Difference]: Start difference. First operand 271 states and 308 transitions. Second operand has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:46,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:17:46,851 INFO L93 Difference]: Finished difference Result 568 states and 646 transitions. [2021-11-21 01:17:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-21 01:17:46,852 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 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 34 [2021-11-21 01:17:46,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:17:46,855 INFO L225 Difference]: With dead ends: 568 [2021-11-21 01:17:46,855 INFO L226 Difference]: Without dead ends: 568 [2021-11-21 01:17:46,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 68 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=529, Invalid=3011, Unknown=0, NotChecked=0, Total=3540 [2021-11-21 01:17:46,857 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1900 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1902 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 2314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:17:46,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 1902 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:17:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-11-21 01:17:46,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 272. [2021-11-21 01:17:46,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 176 states have (on average 1.6818181818181819) internal successors, (296), 269 states have internal predecessors, (296), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:17:46,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2021-11-21 01:17:46,868 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 34 [2021-11-21 01:17:46,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:17:46,868 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2021-11-21 01:17:46,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.3076923076923075) internal successors, (86), 27 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:17:46,869 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2021-11-21 01:17:46,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:17:46,870 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:17:46,870 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:17:46,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:17:47,085 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-11-21 01:17:47,085 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:17:47,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:17:47,086 INFO L85 PathProgramCache]: Analyzing trace with hash -100268175, now seen corresponding path program 1 times [2021-11-21 01:17:47,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:17:47,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982139283] [2021-11-21 01:17:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:47,086 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:17:47,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:47,532 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:47,532 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:17:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982139283] [2021-11-21 01:17:47,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982139283] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:17:47,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162639666] [2021-11-21 01:17:47,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:17:47,533 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:17:47,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:17:47,537 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:17:47,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:17:47,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:17:47,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-21 01:17:47,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:17:47,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:47,779 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:17:47,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:47,792 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 14 treesize of output 16 [2021-11-21 01:17:47,888 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-21 01:17:47,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-21 01:17:47,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 24 [2021-11-21 01:17:47,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 21 [2021-11-21 01:17:48,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:48,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 48 treesize of output 39 [2021-11-21 01:17:48,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:17:48,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2021-11-21 01:17:48,808 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:17:48,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 34 [2021-11-21 01:17:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:48,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:17:49,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 71 [2021-11-21 01:17:49,975 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:17:49,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162639666] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:17:49,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1610999613] [2021-11-21 01:17:49,979 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-21 01:17:49,979 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:17:49,980 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:17:49,980 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:17:49,980 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:17:50,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:50,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:50,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:17:50,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:50,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,262 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:50,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:17:50,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:17:50,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:17:50,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:17:50,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:17:50,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:17:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:17:50,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:50,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:17:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:17:51,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,260 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:17:51,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:17:51,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,276 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:17:51,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 195 treesize of output 181 [2021-11-21 01:17:51,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,326 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:17:51,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 180 treesize of output 185 [2021-11-21 01:17:51,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,548 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:51,568 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-21 01:17:51,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 289 treesize of output 241 [2021-11-21 01:17:51,673 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:17:51,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 270 treesize of output 282 [2021-11-21 01:17:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:51,695 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:17:51,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 262 treesize of output 259 [2021-11-21 01:17:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:51,707 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:51,721 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-21 01:17:51,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 261 treesize of output 254 [2021-11-21 01:17:51,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,000 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:17:52,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 254 treesize of output 221 [2021-11-21 01:17:52,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,052 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:17:52,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 258 [2021-11-21 01:17:52,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,073 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:17:52,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 229 [2021-11-21 01:17:52,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,315 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,371 INFO L354 Elim1Store]: treesize reduction 174, result has 8.9 percent of original size [2021-11-21 01:17:52,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 518 treesize of output 480 [2021-11-21 01:17:52,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,436 INFO L354 Elim1Store]: treesize reduction 286, result has 9.2 percent of original size [2021-11-21 01:17:52,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 643 treesize of output 646 [2021-11-21 01:17:52,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,467 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,468 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:52,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:52,514 INFO L354 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2021-11-21 01:17:52,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 744 treesize of output 711 [2021-11-21 01:17:54,152 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-21 01:17:54,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 688 treesize of output 717 [2021-11-21 01:17:56,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:56,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:56,474 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:56,607 INFO L354 Elim1Store]: treesize reduction 398, result has 12.7 percent of original size [2021-11-21 01:17:56,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 19 case distinctions, treesize of input 896 treesize of output 567 [2021-11-21 01:17:56,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:56,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:56,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:56,778 INFO L354 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2021-11-21 01:17:56,778 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 19 case distinctions, treesize of input 915 treesize of output 785 [2021-11-21 01:17:56,841 INFO L354 Elim1Store]: treesize reduction 160, result has 13.5 percent of original size [2021-11-21 01:17:56,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 934 treesize of output 861 [2021-11-21 01:17:58,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,263 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:58,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,265 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:58,418 INFO L354 Elim1Store]: treesize reduction 494, result has 9.0 percent of original size [2021-11-21 01:17:58,420 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 966 treesize of output 621 [2021-11-21 01:17:58,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,441 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:58,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,444 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:58,588 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-21 01:17:58,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 947 treesize of output 807 [2021-11-21 01:17:58,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,608 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:17:58,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:17:58,671 INFO L354 Elim1Store]: treesize reduction 184, result has 24.9 percent of original size [2021-11-21 01:17:58,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 928 treesize of output 886 [2021-11-21 01:17:58,982 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-21 01:17:58,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 930 treesize of output 956 [2021-11-21 01:18:01,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:01,959 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:02,139 INFO L354 Elim1Store]: treesize reduction 484, result has 11.8 percent of original size [2021-11-21 01:18:02,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 27 case distinctions, treesize of input 1000 treesize of output 644 [2021-11-21 01:18:02,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:02,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:02,317 INFO L354 Elim1Store]: treesize reduction 454, result has 12.2 percent of original size [2021-11-21 01:18:02,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 1019 treesize of output 886 [2021-11-21 01:18:02,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:02,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:02,393 INFO L354 Elim1Store]: treesize reduction 208, result has 10.7 percent of original size [2021-11-21 01:18:02,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 1038 treesize of output 962 [2021-11-21 01:18:03,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:18:03,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:03,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:18:03,561 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:18:03,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:03,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2021-11-21 01:18:03,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:18:03,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:03,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:18:03,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:03,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:18:03,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:18:03,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:03,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 26 [2021-11-21 01:18:03,793 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-21 01:18:03,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-21 01:18:03,883 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:18:03,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:18:03,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:18:03,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-21 01:18:04,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:04,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:18:04,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:18:04,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:11,543 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:18:11,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 234 treesize of output 254 [2021-11-21 01:18:13,042 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:18:13,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:13,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:13,296 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:18:13,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 171 treesize of output 174 [2021-11-21 01:18:13,314 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:18:13,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 174 treesize of output 169 [2021-11-21 01:18:13,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:14,008 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:18:14,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 226 treesize of output 215 [2021-11-21 01:18:14,080 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:18:14,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 212 treesize of output 233 [2021-11-21 01:18:14,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:14,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:14,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 225 treesize of output 227 [2021-11-21 01:18:15,466 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:18:15,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:18:15,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:15,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:15,756 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:18:18,324 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:18:18,324 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:18:18,324 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 30 [2021-11-21 01:18:18,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207240418] [2021-11-21 01:18:18,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:18:18,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-21 01:18:18,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:18:18,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-21 01:18:18,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=2105, Unknown=0, NotChecked=0, Total=2352 [2021-11-21 01:18:18,327 INFO L87 Difference]: Start difference. First operand 272 states and 310 transitions. Second operand has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:23,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:23,545 INFO L93 Difference]: Finished difference Result 927 states and 1034 transitions. [2021-11-21 01:18:23,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-11-21 01:18:23,546 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-21 01:18:23,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:23,550 INFO L225 Difference]: With dead ends: 927 [2021-11-21 01:18:23,550 INFO L226 Difference]: Without dead ends: 927 [2021-11-21 01:18:23,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 69 SyntacticMatches, 5 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2091 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1086, Invalid=5886, Unknown=0, NotChecked=0, Total=6972 [2021-11-21 01:18:23,554 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 4867 mSDsluCounter, 2177 mSDsCounter, 0 mSdLazyCounter, 3261 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4869 SdHoareTripleChecker+Valid, 2238 SdHoareTripleChecker+Invalid, 4388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 3261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 887 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:23,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4869 Valid, 2238 Invalid, 4388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [240 Valid, 3261 Invalid, 0 Unknown, 887 Unchecked, 2.5s Time] [2021-11-21 01:18:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 927 states. [2021-11-21 01:18:23,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 927 to 288. [2021-11-21 01:18:23,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 195 states have (on average 1.6205128205128205) internal successors, (316), 285 states have internal predecessors, (316), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:18:23,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2021-11-21 01:18:23,568 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 34 [2021-11-21 01:18:23,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:23,568 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2021-11-21 01:18:23,569 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 3.2) internal successors, (96), 31 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:23,569 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2021-11-21 01:18:23,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:18:23,569 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:23,570 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1] [2021-11-21 01:18:23,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:18:23,801 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-21 01:18:23,801 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:18:23,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:23,801 INFO L85 PathProgramCache]: Analyzing trace with hash -767870067, now seen corresponding path program 1 times [2021-11-21 01:18:23,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:18:23,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227378304] [2021-11-21 01:18:23,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:23,802 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:18:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:23,980 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:18:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227378304] [2021-11-21 01:18:23,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227378304] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:18:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418397930] [2021-11-21 01:18:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:23,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:18:23,981 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:23,982 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:18:24,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:18:24,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:24,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-21 01:18:24,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:24,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:24,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:24,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-21 01:18:24,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-21 01:18:24,395 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:24,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:24,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418397930] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:18:24,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1426808359] [2021-11-21 01:18:24,592 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 01:18:24,592 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:18:24,593 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:18:24,593 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:18:24,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:18:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:24,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:24,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:24,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:24,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:24,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:24,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:24,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:24,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:18:25,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:25,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:18:25,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:25,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:18:25,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:18:25,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:18:25,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:18:25,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,738 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:18:25,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:18:25,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,751 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:18:25,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 195 treesize of output 181 [2021-11-21 01:18:25,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,781 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:18:25,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 180 treesize of output 185 [2021-11-21 01:18:25,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:25,983 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,000 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-21 01:18:26,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 285 treesize of output 237 [2021-11-21 01:18:26,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,021 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,043 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:18:26,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 266 treesize of output 263 [2021-11-21 01:18:26,138 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:18:26,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 265 treesize of output 277 [2021-11-21 01:18:26,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,166 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-21 01:18:26,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 264 treesize of output 257 [2021-11-21 01:18:26,487 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:18:26,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 217 [2021-11-21 01:18:26,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,516 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,523 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:18:26,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 229 [2021-11-21 01:18:26,588 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:18:26,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 231 treesize of output 239 [2021-11-21 01:18:26,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,797 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,822 INFO L354 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2021-11-21 01:18:26,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 514 treesize of output 517 [2021-11-21 01:18:26,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,835 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,869 INFO L354 Elim1Store]: treesize reduction 62, result has 31.9 percent of original size [2021-11-21 01:18:26,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 525 treesize of output 492 [2021-11-21 01:18:26,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:26,883 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,884 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:26,906 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-21 01:18:26,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 509 treesize of output 471 [2021-11-21 01:18:29,036 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-21 01:18:29,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 594 treesize of output 617 [2021-11-21 01:18:31,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:31,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:31,524 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:31,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:31,617 INFO L354 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2021-11-21 01:18:31,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 18 case distinctions, treesize of input 796 treesize of output 539 [2021-11-21 01:18:31,688 INFO L354 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2021-11-21 01:18:31,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 809 treesize of output 742 [2021-11-21 01:18:31,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:31,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:31,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:31,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:31,795 INFO L354 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2021-11-21 01:18:31,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 case distinctions, treesize of input 794 treesize of output 767 [2021-11-21 01:18:33,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:33,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:33,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:33,823 INFO L354 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2021-11-21 01:18:33,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 1087 treesize of output 750 [2021-11-21 01:18:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,842 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:33,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:33,896 INFO L354 Elim1Store]: treesize reduction 166, result has 22.8 percent of original size [2021-11-21 01:18:33,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 1068 treesize of output 990 [2021-11-21 01:18:34,133 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-21 01:18:34,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 1070 treesize of output 1078 [2021-11-21 01:18:34,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:34,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:34,153 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:34,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:34,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:34,248 INFO L354 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2021-11-21 01:18:34,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 1079 treesize of output 994 [2021-11-21 01:18:37,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:37,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:37,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:37,800 INFO L354 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2021-11-21 01:18:37,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 894 treesize of output 616 [2021-11-21 01:18:37,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:37,821 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:37,866 INFO L354 Elim1Store]: treesize reduction 196, result has 11.3 percent of original size [2021-11-21 01:18:37,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 907 treesize of output 837 [2021-11-21 01:18:37,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:37,880 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:37,881 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:38,001 INFO L354 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2021-11-21 01:18:38,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 892 treesize of output 868 [2021-11-21 01:18:39,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:39,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:18:39,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:18:40,042 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:18:40,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:40,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2021-11-21 01:18:40,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:40,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:18:40,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:18:40,243 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:18:40,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:18:40,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:40,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 24 [2021-11-21 01:18:40,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 27 [2021-11-21 01:18:40,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:40,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2021-11-21 01:18:40,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:18:40,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:40,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:40,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:18:40,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:40,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-21 01:18:40,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:18:40,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:18:40,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:18:42,956 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:18:42,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 234 treesize of output 254 [2021-11-21 01:18:44,131 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:18:44,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:44,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:44,443 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:18:44,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 165 treesize of output 168 [2021-11-21 01:18:44,464 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:18:44,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 163 [2021-11-21 01:18:45,146 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:18:45,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 220 treesize of output 241 [2021-11-21 01:18:45,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:45,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:45,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 235 [2021-11-21 01:18:45,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:45,195 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:18:45,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 232 treesize of output 221 [2021-11-21 01:18:46,416 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:18:46,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:18:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:46,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:46,750 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:18:48,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1426808359] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:48,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:18:48,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [7, 5, 4] total 24 [2021-11-21 01:18:48,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974390022] [2021-11-21 01:18:48,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:48,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-21 01:18:48,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:18:48,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-21 01:18:48,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=484, Unknown=0, NotChecked=0, Total=600 [2021-11-21 01:18:48,341 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 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) [2021-11-21 01:18:50,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:50,489 INFO L93 Difference]: Finished difference Result 418 states and 467 transitions. [2021-11-21 01:18:50,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-21 01:18:50,490 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 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 34 [2021-11-21 01:18:50,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:50,492 INFO L225 Difference]: With dead ends: 418 [2021-11-21 01:18:50,492 INFO L226 Difference]: Without dead ends: 418 [2021-11-21 01:18:50,493 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=146, Invalid=666, Unknown=0, NotChecked=0, Total=812 [2021-11-21 01:18:50,493 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 427 mSDsluCounter, 651 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:50,494 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [429 Valid, 757 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:18:50,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-21 01:18:50,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 292. [2021-11-21 01:18:50,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 199 states have (on average 1.6080402010050252) internal successors, (320), 289 states have internal predecessors, (320), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:18:50,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 334 transitions. [2021-11-21 01:18:50,505 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 334 transitions. Word has length 34 [2021-11-21 01:18:50,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:50,505 INFO L470 AbstractCegarLoop]: Abstraction has 292 states and 334 transitions. [2021-11-21 01:18:50,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.9411764705882353) internal successors, (33), 16 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) [2021-11-21 01:18:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 334 transitions. [2021-11-21 01:18:50,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-21 01:18:50,506 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:50,507 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:50,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:18:50,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:18:50,725 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:18:50,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:50,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1583015888, now seen corresponding path program 1 times [2021-11-21 01:18:50,726 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:18:50,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929988657] [2021-11-21 01:18:50,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:50,726 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:18:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:50,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:50,899 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:18:50,899 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929988657] [2021-11-21 01:18:50,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929988657] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:18:50,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719789805] [2021-11-21 01:18:50,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:50,900 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:18:50,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:50,901 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:18:50,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:18:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:50,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-21 01:18:50,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:51,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-21 01:18:51,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-21 01:18:51,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:18:51,299 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:18:51,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719789805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:18:51,299 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:18:51,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 14 [2021-11-21 01:18:51,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089484062] [2021-11-21 01:18:51,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:18:51,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:18:51,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:18:51,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:18:51,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:18:51,300 INFO L87 Difference]: Start difference. First operand 292 states and 334 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:51,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:18:51,737 INFO L93 Difference]: Finished difference Result 411 states and 459 transitions. [2021-11-21 01:18:51,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:18:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 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 36 [2021-11-21 01:18:51,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:18:51,739 INFO L225 Difference]: With dead ends: 411 [2021-11-21 01:18:51,739 INFO L226 Difference]: Without dead ends: 411 [2021-11-21 01:18:51,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2021-11-21 01:18:51,740 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 735 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 737 SdHoareTripleChecker+Valid, 1115 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:18:51,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [737 Valid, 1115 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:18:51,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2021-11-21 01:18:51,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 297. [2021-11-21 01:18:51,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 204 states have (on average 1.5931372549019607) internal successors, (325), 294 states have internal predecessors, (325), 12 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:18:51,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 339 transitions. [2021-11-21 01:18:51,748 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 339 transitions. Word has length 36 [2021-11-21 01:18:51,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:18:51,748 INFO L470 AbstractCegarLoop]: Abstraction has 297 states and 339 transitions. [2021-11-21 01:18:51,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:18:51,749 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 339 transitions. [2021-11-21 01:18:51,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-21 01:18:51,749 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:18:51,749 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:18:51,777 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-21 01:18:51,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:18:51,953 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:18:51,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:18:51,954 INFO L85 PathProgramCache]: Analyzing trace with hash -268978756, now seen corresponding path program 1 times [2021-11-21 01:18:51,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:18:51,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426664218] [2021-11-21 01:18:51,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:51,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:18:51,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:52,055 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-21 01:18:52,056 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:18:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426664218] [2021-11-21 01:18:52,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426664218] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:18:52,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1567309576] [2021-11-21 01:18:52,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:18:52,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:18:52,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:18:52,058 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:18:52,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:18:52,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:18:52,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-21 01:18:52,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:18:52,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 28 [2021-11-21 01:18:52,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2021-11-21 01:18:52,344 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:18:52,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:18:52,508 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-21 01:18:52,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1567309576] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:18:52,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1000174400] [2021-11-21 01:18:52,512 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-21 01:18:52,512 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:18:52,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:18:52,513 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:18:52,513 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:18:52,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:52,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:52,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:18:52,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:52,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:18:52,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:52,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:52,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:18:52,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:52,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:52,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:18:53,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:18:53,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:18:53,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:18:53,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:18:53,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:18:53,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,706 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:18:53,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:18:53,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,733 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:18:53,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 195 treesize of output 181 [2021-11-21 01:18:53,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:53,778 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:18:53,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 180 treesize of output 185 [2021-11-21 01:18:54,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,100 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-21 01:18:54,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 289 treesize of output 241 [2021-11-21 01:18:54,189 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:18:54,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 270 treesize of output 282 [2021-11-21 01:18:54,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,203 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,217 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:18:54,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 262 treesize of output 259 [2021-11-21 01:18:54,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,244 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-21 01:18:54,245 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 261 treesize of output 254 [2021-11-21 01:18:54,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,550 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:18:54,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 254 treesize of output 221 [2021-11-21 01:18:54,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,567 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,573 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:18:54,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 250 treesize of output 233 [2021-11-21 01:18:54,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,640 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:18:54,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 235 treesize of output 243 [2021-11-21 01:18:54,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,894 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,957 INFO L354 Elim1Store]: treesize reduction 174, result has 8.9 percent of original size [2021-11-21 01:18:54,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 518 treesize of output 480 [2021-11-21 01:18:54,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:54,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:54,978 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:55,029 INFO L354 Elim1Store]: treesize reduction 286, result has 9.2 percent of original size [2021-11-21 01:18:55,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 643 treesize of output 646 [2021-11-21 01:18:55,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:55,041 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:55,042 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:18:55,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:55,079 INFO L354 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2021-11-21 01:18:55,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 744 treesize of output 711 [2021-11-21 01:18:56,872 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-21 01:18:56,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 695 treesize of output 722 [2021-11-21 01:18:59,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:59,488 INFO L354 Elim1Store]: treesize reduction 410, result has 12.4 percent of original size [2021-11-21 01:18:59,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 9 new quantified variables, introduced 19 case distinctions, treesize of input 896 treesize of output 567 [2021-11-21 01:18:59,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:59,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:18:59,676 INFO L354 Elim1Store]: treesize reduction 382, result has 12.8 percent of original size [2021-11-21 01:18:59,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 10 new quantified variables, introduced 19 case distinctions, treesize of input 915 treesize of output 785 [2021-11-21 01:18:59,730 INFO L354 Elim1Store]: treesize reduction 160, result has 13.5 percent of original size [2021-11-21 01:18:59,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 934 treesize of output 861 [2021-11-21 01:19:01,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,498 INFO L354 Elim1Store]: treesize reduction 552, result has 9.2 percent of original size [2021-11-21 01:19:01,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 26 case distinctions, treesize of input 1200 treesize of output 785 [2021-11-21 01:19:01,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,664 INFO L354 Elim1Store]: treesize reduction 522, result has 9.4 percent of original size [2021-11-21 01:19:01,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 new quantified variables, introduced 26 case distinctions, treesize of input 1181 treesize of output 1003 [2021-11-21 01:19:01,889 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-21 01:19:01,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 1162 treesize of output 1174 [2021-11-21 01:19:01,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,929 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:01,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:01,991 INFO L354 Elim1Store]: treesize reduction 184, result has 24.9 percent of original size [2021-11-21 01:19:01,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 1184 treesize of output 1106 [2021-11-21 01:19:05,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:05,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:05,239 INFO L354 Elim1Store]: treesize reduction 500, result has 11.5 percent of original size [2021-11-21 01:19:05,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 26 case distinctions, treesize of input 1000 treesize of output 644 [2021-11-21 01:19:05,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:05,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:05,441 INFO L354 Elim1Store]: treesize reduction 470, result has 11.8 percent of original size [2021-11-21 01:19:05,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 new quantified variables, introduced 26 case distinctions, treesize of input 1019 treesize of output 886 [2021-11-21 01:19:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:05,458 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:05,510 INFO L354 Elim1Store]: treesize reduction 208, result has 10.7 percent of original size [2021-11-21 01:19:05,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 1038 treesize of output 962 [2021-11-21 01:19:06,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:06,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:06,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-21 01:19:07,048 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:19:07,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:07,084 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:19:07,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:07,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:07,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:07,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:07,243 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-21 01:19:07,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 26 treesize of output 33 [2021-11-21 01:19:07,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:07,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:19:07,310 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:19:07,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:19:07,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:07,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 23 [2021-11-21 01:19:07,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:19:07,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:19:07,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:19:07,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:19:07,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:07,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-21 01:19:07,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:15,226 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:19:15,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 225 treesize of output 245 [2021-11-21 01:19:16,595 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:19:16,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:16,851 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:19:16,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 162 treesize of output 171 [2021-11-21 01:19:16,882 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:19:16,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 166 [2021-11-21 01:19:17,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:17,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-21 01:19:17,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,621 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:19:17,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 217 treesize of output 212 [2021-11-21 01:19:17,693 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:19:17,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 209 treesize of output 230 [2021-11-21 01:19:17,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:17,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 229 treesize of output 231 [2021-11-21 01:19:19,316 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:19:19,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:19:19,571 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2021-11-21 01:19:19,584 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:19:21,331 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:19:21,331 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:19:21,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2021-11-21 01:19:21,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380224318] [2021-11-21 01:19:21,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:19:21,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-21 01:19:21,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:21,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-21 01:19:21,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=829, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:19:21,333 INFO L87 Difference]: Start difference. First operand 297 states and 339 transitions. Second operand has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:21,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:21,695 INFO L93 Difference]: Finished difference Result 295 states and 333 transitions. [2021-11-21 01:19:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:19:21,695 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 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 38 [2021-11-21 01:19:21,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:21,697 INFO L225 Difference]: With dead ends: 295 [2021-11-21 01:19:21,697 INFO L226 Difference]: Without dead ends: 295 [2021-11-21 01:19:21,697 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 384 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=207, Invalid=1053, Unknown=0, NotChecked=0, Total=1260 [2021-11-21 01:19:21,698 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 589 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 510 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 589 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:21,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [589 Valid, 504 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 510 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:19:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2021-11-21 01:19:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2021-11-21 01:19:21,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 204 states have (on average 1.5735294117647058) internal successors, (321), 292 states have internal predecessors, (321), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 333 transitions. [2021-11-21 01:19:21,705 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 333 transitions. Word has length 38 [2021-11-21 01:19:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:21,705 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 333 transitions. [2021-11-21 01:19:21,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.416666666666667) internal successors, (65), 12 states have internal predecessors, (65), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:21,705 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 333 transitions. [2021-11-21 01:19:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-21 01:19:21,706 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:21,706 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:21,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:19:21,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-21 01:19:21,919 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:19:21,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:21,920 INFO L85 PathProgramCache]: Analyzing trace with hash 866023571, now seen corresponding path program 1 times [2021-11-21 01:19:21,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:21,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542864368] [2021-11-21 01:19:21,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:21,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:22,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:22,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:22,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542864368] [2021-11-21 01:19:22,005 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542864368] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:22,005 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:22,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-21 01:19:22,007 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336872899] [2021-11-21 01:19:22,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:22,009 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:19:22,009 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:22,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:19:22,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:19:22,010 INFO L87 Difference]: Start difference. First operand 295 states and 333 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:22,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:22,375 INFO L93 Difference]: Finished difference Result 361 states and 394 transitions. [2021-11-21 01:19:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:19:22,375 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 39 [2021-11-21 01:19:22,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:22,377 INFO L225 Difference]: With dead ends: 361 [2021-11-21 01:19:22,377 INFO L226 Difference]: Without dead ends: 361 [2021-11-21 01:19:22,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:19:22,378 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 724 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 726 SdHoareTripleChecker+Valid, 861 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:22,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [726 Valid, 861 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:19:22,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2021-11-21 01:19:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 295. [2021-11-21 01:19:22,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 204 states have (on average 1.5686274509803921) internal successors, (320), 292 states have internal predecessors, (320), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 332 transitions. [2021-11-21 01:19:22,387 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 332 transitions. Word has length 39 [2021-11-21 01:19:22,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:22,388 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 332 transitions. [2021-11-21 01:19:22,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:22,388 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 332 transitions. [2021-11-21 01:19:22,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 01:19:22,389 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:22,389 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:22,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-21 01:19:22,390 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:19:22,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:22,390 INFO L85 PathProgramCache]: Analyzing trace with hash -975101704, now seen corresponding path program 1 times [2021-11-21 01:19:22,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:22,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786125269] [2021-11-21 01:19:22,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:22,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:22,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:19:22,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:22,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786125269] [2021-11-21 01:19:22,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786125269] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:22,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:22,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-21 01:19:22,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20262038] [2021-11-21 01:19:22,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:22,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-21 01:19:22,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:22,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-21 01:19:22,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:19:22,469 INFO L87 Difference]: Start difference. First operand 295 states and 332 transitions. Second operand has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:22,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:22,849 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2021-11-21 01:19:22,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:19:22,849 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 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 41 [2021-11-21 01:19:22,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:22,851 INFO L225 Difference]: With dead ends: 330 [2021-11-21 01:19:22,851 INFO L226 Difference]: Without dead ends: 330 [2021-11-21 01:19:22,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-11-21 01:19:22,852 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 140 mSDsluCounter, 665 mSDsCounter, 0 mSdLazyCounter, 484 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 484 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:22,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 787 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-21 01:19:22,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-21 01:19:22,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2021-11-21 01:19:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 211 states have (on average 1.5355450236966826) internal successors, (324), 297 states have internal predecessors, (324), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:22,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 336 transitions. [2021-11-21 01:19:22,858 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 336 transitions. Word has length 41 [2021-11-21 01:19:22,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:22,858 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 336 transitions. [2021-11-21 01:19:22,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.666666666666667) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:19:22,859 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 336 transitions. [2021-11-21 01:19:22,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 01:19:22,859 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:22,859 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:22,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-11-21 01:19:22,859 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:19:22,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:22,860 INFO L85 PathProgramCache]: Analyzing trace with hash -975101703, now seen corresponding path program 1 times [2021-11-21 01:19:22,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:22,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473959420] [2021-11-21 01:19:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:22,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:22,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:22,986 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:22,986 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:22,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473959420] [2021-11-21 01:19:22,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473959420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:19:22,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:19:22,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 01:19:22,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467334979] [2021-11-21 01:19:22,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:19:22,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:19:22,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:19:22,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:19:22,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:19:22,989 INFO L87 Difference]: Start difference. First operand 300 states and 336 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) [2021-11-21 01:19:23,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:19:23,607 INFO L93 Difference]: Finished difference Result 380 states and 415 transitions. [2021-11-21 01:19:23,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-21 01:19:23,607 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 41 [2021-11-21 01:19:23,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:19:23,609 INFO L225 Difference]: With dead ends: 380 [2021-11-21 01:19:23,609 INFO L226 Difference]: Without dead ends: 380 [2021-11-21 01:19:23,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2021-11-21 01:19:23,610 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 872 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 874 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:19:23,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [874 Valid, 1000 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:19:23,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-21 01:19:23,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 303. [2021-11-21 01:19:23,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.52803738317757) internal successors, (327), 300 states have internal predecessors, (327), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:19:23,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 339 transitions. [2021-11-21 01:19:23,622 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 339 transitions. Word has length 41 [2021-11-21 01:19:23,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:19:23,623 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 339 transitions. [2021-11-21 01:19:23,623 INFO L471 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) [2021-11-21 01:19:23,623 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 339 transitions. [2021-11-21 01:19:23,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:19:23,624 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:19:23,624 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:19:23,624 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-21 01:19:23,625 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:19:23,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:19:23,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1768846581, now seen corresponding path program 1 times [2021-11-21 01:19:23,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:19:23,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49182812] [2021-11-21 01:19:23,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:23,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:19:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:24,037 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:24,038 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:19:24,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49182812] [2021-11-21 01:19:24,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49182812] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:19:24,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1267974531] [2021-11-21 01:19:24,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:19:24,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:19:24,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:19:24,066 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:19:24,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:19:24,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:19:24,163 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-21 01:19:24,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:19:24,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:24,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:19:24,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2021-11-21 01:19:24,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:24,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:24,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-21 01:19:24,284 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:19:24,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-21 01:19:24,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:24,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 19 [2021-11-21 01:19:24,345 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-21 01:19:24,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2021-11-21 01:19:24,418 INFO L354 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2021-11-21 01:19:24,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 49 [2021-11-21 01:19:24,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:24,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:24,516 INFO L354 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2021-11-21 01:19:24,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 63 [2021-11-21 01:19:25,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2021-11-21 01:19:25,642 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-11-21 01:19:25,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 61 [2021-11-21 01:19:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:19:25,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:19:30,005 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (v_DerPreprocessor_1 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) (+ |c_ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_1)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) is different from false [2021-11-21 01:19:32,038 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (|ULTIMATE.start_main_~node~1#1.offset| Int) (v_DerPreprocessor_1 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |ULTIMATE.start_main_~node~1#1.offset| 0) (+ |ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_1)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) is different from false [2021-11-21 01:19:41,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 20 [2021-11-21 01:19:41,299 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-21 01:19:41,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1267974531] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:19:41,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1223909533] [2021-11-21 01:19:41,303 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-21 01:19:41,303 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:19:41,303 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:19:41,304 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:19:41,304 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:19:41,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:41,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:41,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:41,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:41,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:19:41,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:41,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:41,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:41,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:19:41,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:19:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:19:41,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:19:41,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:41,985 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:19:42,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:19:42,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:19:42,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,514 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:19:42,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:19:42,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,547 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:19:42,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 195 treesize of output 200 [2021-11-21 01:19:42,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,562 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:19:42,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 191 treesize of output 177 [2021-11-21 01:19:42,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,768 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:42,785 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-21 01:19:42,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 6 case distinctions, treesize of input 285 treesize of output 237 [2021-11-21 01:19:42,890 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:19:42,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 266 treesize of output 278 [2021-11-21 01:19:42,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,901 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:42,915 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-21 01:19:42,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 6 case distinctions, treesize of input 258 treesize of output 251 [2021-11-21 01:19:42,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:42,927 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:42,939 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:19:42,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 239 treesize of output 236 [2021-11-21 01:19:43,191 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:19:43,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 217 [2021-11-21 01:19:43,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,212 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:19:43,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 229 [2021-11-21 01:19:43,258 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:19:43,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 231 treesize of output 239 [2021-11-21 01:19:43,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,569 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,570 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,605 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-21 01:19:43,606 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 514 treesize of output 476 [2021-11-21 01:19:43,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,628 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,676 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-21 01:19:43,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 639 treesize of output 606 [2021-11-21 01:19:43,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,689 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:43,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,692 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:43,717 INFO L354 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2021-11-21 01:19:43,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 11 case distinctions, treesize of input 623 treesize of output 626 [2021-11-21 01:19:45,395 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-21 01:19:45,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 594 treesize of output 617 [2021-11-21 01:19:48,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:48,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:48,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:48,071 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:48,163 INFO L354 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2021-11-21 01:19:48,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 18 case distinctions, treesize of input 796 treesize of output 539 [2021-11-21 01:19:48,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:48,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:48,188 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:48,189 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:48,334 INFO L354 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2021-11-21 01:19:48,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 18 case distinctions, treesize of input 809 treesize of output 782 [2021-11-21 01:19:48,420 INFO L354 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2021-11-21 01:19:48,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 822 treesize of output 755 [2021-11-21 01:19:49,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:49,671 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:49,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:49,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:49,674 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:49,756 INFO L354 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2021-11-21 01:19:49,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 866 treesize of output 593 [2021-11-21 01:19:49,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:49,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:49,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:49,879 INFO L354 Elim1Store]: treesize reduction 166, result has 22.8 percent of original size [2021-11-21 01:19:49,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 847 treesize of output 805 [2021-11-21 01:19:50,085 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-21 01:19:50,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 849 treesize of output 869 [2021-11-21 01:19:50,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:50,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:50,102 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:50,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:50,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:50,195 INFO L354 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2021-11-21 01:19:50,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 858 treesize of output 805 [2021-11-21 01:19:53,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:53,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:53,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:53,932 INFO L354 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2021-11-21 01:19:53,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 26 case distinctions, treesize of input 894 treesize of output 616 [2021-11-21 01:19:53,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:53,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:53,948 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:54,081 INFO L354 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2021-11-21 01:19:54,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 26 case distinctions, treesize of input 907 treesize of output 883 [2021-11-21 01:19:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:54,097 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:19:54,145 INFO L354 Elim1Store]: treesize reduction 196, result has 11.3 percent of original size [2021-11-21 01:19:54,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 920 treesize of output 850 [2021-11-21 01:19:55,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-21 01:19:55,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:19:55,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:55,461 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:19:55,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:19:55,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2021-11-21 01:19:55,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:19:55,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:19:55,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:19:55,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:55,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 45 treesize of output 26 [2021-11-21 01:19:55,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:19:55,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:19:55,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:19:55,764 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:19:55,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:19:55,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2021-11-21 01:19:55,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-21 01:19:55,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:19:55,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:19:56,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 40 [2021-11-21 01:19:56,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:19:56,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:06,972 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:20:06,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 240 treesize of output 260 [2021-11-21 01:20:08,570 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:20:08,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:08,895 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:20:08,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 168 treesize of output 171 [2021-11-21 01:20:08,916 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:20:08,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 171 treesize of output 166 [2021-11-21 01:20:09,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:09,720 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:20:09,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 223 treesize of output 244 [2021-11-21 01:20:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:09,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:09,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 243 treesize of output 245 [2021-11-21 01:20:09,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:09,787 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:20:09,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 242 treesize of output 231 [2021-11-21 01:20:11,077 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:20:11,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:20:11,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:11,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:11,478 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 43 for LOIs [2021-11-21 01:20:11,794 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:20:15,267 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:20:15,267 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:20:15,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 33 [2021-11-21 01:20:15,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485102717] [2021-11-21 01:20:15,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:20:15,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-21 01:20:15,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:20:15,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-21 01:20:15,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=2642, Unknown=3, NotChecked=210, Total=3080 [2021-11-21 01:20:15,270 INFO L87 Difference]: Start difference. First operand 303 states and 339 transitions. Second operand has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:20:17,375 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|))) (and (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (or (< |c_ULTIMATE.start_main_~item~0#1.offset| 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|) (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0)))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~data~0#1.base|) 1) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~item~0#1.base|) 1))) is different from false [2021-11-21 01:20:19,380 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (|ULTIMATE.start_main_~node~1#1.offset| Int) (v_DerPreprocessor_1 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |ULTIMATE.start_main_~node~1#1.offset| 0) (+ |ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_1)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= |c_ULTIMATE.start_main_~data~0#1.base| |c_ULTIMATE.start_main_~node~1#1.base|)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |c_ULTIMATE.start_main_~node~1#1.offset| 0)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0))) is different from false [2021-11-21 01:20:21,383 WARN L838 $PredicateComparison]: unable to prove that (and (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |c_ULTIMATE.start_main_~node~1#1.offset|) 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (v_DerPreprocessor_1 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) (+ |c_ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_1)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) (not (= |c_ULTIMATE.start_main_~data~0#1.base| |c_ULTIMATE.start_main_~node~1#1.base|)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0))) is different from false [2021-11-21 01:20:23,580 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 4 |c_ULTIMATE.start_main_~data~0#1.offset|)) (.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse0 (select .cse1 |c_ULTIMATE.start_main_~data~0#1.offset|)) (.cse2 (select .cse1 .cse4)) (.cse3 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|))) (and (or (= |c_ULTIMATE.start_main_~data~0#1.base| .cse0) (exists ((|ULTIMATE.start_main_~node~1#1.offset| Int)) (= (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|)) |ULTIMATE.start_main_~node~1#1.offset|) 0))) (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (or (< |c_ULTIMATE.start_main_~item~0#1.offset| 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|) (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0)))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select .cse1 0) 0)) (not (= .cse0 0)) (not (= .cse2 .cse0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~data~0#1.base|) 1) (not (= (select (select |c_#memory_$Pointer$.base| .cse2) 0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse3 (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (= 0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~data~0#1.base|) .cse4)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~item~0#1.base|) 1)))) is different from false [2021-11-21 01:20:24,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:20:24,113 INFO L93 Difference]: Finished difference Result 310 states and 345 transitions. [2021-11-21 01:20:24,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-21 01:20:24,113 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 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 44 [2021-11-21 01:20:24,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:20:24,116 INFO L225 Difference]: With dead ends: 310 [2021-11-21 01:20:24,116 INFO L226 Difference]: Without dead ends: 310 [2021-11-21 01:20:24,118 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 88 SyntacticMatches, 6 SemanticMatches, 66 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 1047 ImplicationChecksByTransitivity, 20.7s TimeCoverageRelationStatistics Valid=338, Invalid=3461, Unknown=7, NotChecked=750, Total=4556 [2021-11-21 01:20:24,119 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 39 mSDsluCounter, 3264 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3321 SdHoareTripleChecker+Invalid, 1158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 751 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:20:24,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 3321 Invalid, 1158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 404 Invalid, 0 Unknown, 751 Unchecked, 0.4s Time] [2021-11-21 01:20:24,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-21 01:20:24,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 303. [2021-11-21 01:20:24,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5233644859813085) internal successors, (326), 300 states have internal predecessors, (326), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:20:24,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 338 transitions. [2021-11-21 01:20:24,127 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 338 transitions. Word has length 44 [2021-11-21 01:20:24,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:20:24,128 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 338 transitions. [2021-11-21 01:20:24,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:20:24,128 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 338 transitions. [2021-11-21 01:20:24,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:20:24,129 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:20:24,130 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:20:24,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:20:24,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-11-21 01:20:24,357 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:20:24,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:20:24,358 INFO L85 PathProgramCache]: Analyzing trace with hash 99803102, now seen corresponding path program 1 times [2021-11-21 01:20:24,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:20:24,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618602124] [2021-11-21 01:20:24,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:20:24,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:20:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:20:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:20:24,758 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:20:24,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618602124] [2021-11-21 01:20:24,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618602124] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:20:24,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734037713] [2021-11-21 01:20:24,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:20:24,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:20:24,760 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:20:24,761 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:20:24,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:20:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:20:24,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-21 01:20:24,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:20:24,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:24,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:20:24,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2021-11-21 01:20:24,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:24,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:24,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 17 treesize of output 21 [2021-11-21 01:20:24,993 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:20:24,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-21 01:20:25,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:25,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 20 treesize of output 19 [2021-11-21 01:20:25,070 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-21 01:20:25,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2021-11-21 01:20:25,173 INFO L354 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2021-11-21 01:20:25,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 new quantified variables, introduced 3 case distinctions, treesize of input 35 treesize of output 49 [2021-11-21 01:20:25,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:25,277 INFO L354 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2021-11-21 01:20:25,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 57 treesize of output 63 [2021-11-21 01:20:25,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:26,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 65 [2021-11-21 01:20:26,552 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-11-21 01:20:26,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 63 treesize of output 61 [2021-11-21 01:20:26,597 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:20:26,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:20:30,588 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (v_DerPreprocessor_2 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) (+ |c_ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_2)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) is different from false [2021-11-21 01:20:32,597 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (|ULTIMATE.start_main_~node~1#1.offset| Int) (v_DerPreprocessor_2 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |ULTIMATE.start_main_~node~1#1.offset| 0) (+ |ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_2)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) is different from false [2021-11-21 01:20:37,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 20 [2021-11-21 01:20:37,113 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-21 01:20:37,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734037713] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:20:37,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [400291328] [2021-11-21 01:20:37,116 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-21 01:20:37,116 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:20:37,117 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:20:37,117 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:20:37,117 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:20:37,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:37,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:37,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:37,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:37,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:37,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:37,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:20:37,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:37,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:20:37,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,626 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:20:37,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:20:37,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:20:37,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:20:37,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:37,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:20:38,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:20:38,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,411 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-21 01:20:38,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 199 treesize of output 167 [2021-11-21 01:20:38,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,443 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:20:38,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 2 case distinctions, treesize of input 195 treesize of output 181 [2021-11-21 01:20:38,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,479 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-21 01:20:38,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 180 treesize of output 185 [2021-11-21 01:20:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,642 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:38,660 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-21 01:20:38,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 289 treesize of output 241 [2021-11-21 01:20:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,675 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:38,691 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-21 01:20:38,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 270 treesize of output 263 [2021-11-21 01:20:38,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:38,705 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:38,720 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-21 01:20:38,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 251 treesize of output 248 [2021-11-21 01:20:38,806 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:20:38,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 250 treesize of output 262 [2021-11-21 01:20:39,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,174 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-21 01:20:39,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 254 treesize of output 221 [2021-11-21 01:20:39,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,229 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-21 01:20:39,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 250 treesize of output 258 [2021-11-21 01:20:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,245 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,251 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-21 01:20:39,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 229 [2021-11-21 01:20:39,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,562 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,617 INFO L354 Elim1Store]: treesize reduction 190, result has 8.2 percent of original size [2021-11-21 01:20:39,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 518 treesize of output 521 [2021-11-21 01:20:39,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,631 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,632 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,676 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-21 01:20:39,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 619 treesize of output 586 [2021-11-21 01:20:39,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:39,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,700 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:39,752 INFO L354 Elim1Store]: treesize reduction 258, result has 10.1 percent of original size [2021-11-21 01:20:39,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 603 treesize of output 499 [2021-11-21 01:20:41,555 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-21 01:20:41,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 688 treesize of output 717 [2021-11-21 01:20:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:44,785 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:45,055 INFO L354 Elim1Store]: treesize reduction 398, result has 12.7 percent of original size [2021-11-21 01:20:45,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 new quantified variables, introduced 19 case distinctions, treesize of input 896 treesize of output 567 [2021-11-21 01:20:45,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:45,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:45,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:45,198 INFO L354 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2021-11-21 01:20:45,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 19 case distinctions, treesize of input 915 treesize of output 785 [2021-11-21 01:20:45,253 INFO L354 Elim1Store]: treesize reduction 160, result has 13.5 percent of original size [2021-11-21 01:20:45,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 934 treesize of output 861 [2021-11-21 01:20:46,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,808 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:46,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:46,810 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:47,135 INFO L354 Elim1Store]: treesize reduction 494, result has 9.0 percent of original size [2021-11-21 01:20:47,136 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 25 case distinctions, treesize of input 966 treesize of output 621 [2021-11-21 01:20:47,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:47,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:47,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:47,156 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:47,300 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-21 01:20:47,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 947 treesize of output 807 [2021-11-21 01:20:47,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:47,320 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:47,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:47,389 INFO L354 Elim1Store]: treesize reduction 184, result has 24.9 percent of original size [2021-11-21 01:20:47,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 928 treesize of output 886 [2021-11-21 01:20:47,599 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-21 01:20:47,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 930 treesize of output 956 [2021-11-21 01:20:50,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:50,610 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:50,797 INFO L354 Elim1Store]: treesize reduction 484, result has 11.8 percent of original size [2021-11-21 01:20:50,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 27 case distinctions, treesize of input 1000 treesize of output 644 [2021-11-21 01:20:50,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:50,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:50,989 INFO L354 Elim1Store]: treesize reduction 454, result has 12.2 percent of original size [2021-11-21 01:20:50,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 1019 treesize of output 886 [2021-11-21 01:20:51,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:51,009 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:20:51,063 INFO L354 Elim1Store]: treesize reduction 208, result has 10.7 percent of original size [2021-11-21 01:20:51,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 11 case distinctions, treesize of input 1038 treesize of output 962 [2021-11-21 01:20:52,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:53,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:53,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:20:53,116 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-21 01:20:53,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:53,187 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:20:53,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:20:53,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:20:53,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:20:53,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:20:53,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:53,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2021-11-21 01:20:53,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:53,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 41 treesize of output 24 [2021-11-21 01:20:53,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:20:53,409 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-21 01:20:53,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 31 [2021-11-21 01:20:53,493 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:20:53,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:20:53,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 31 [2021-11-21 01:20:53,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:20:53,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:20:53,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:20:53,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:20:53,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:20:53,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:21:03,106 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:21:03,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 234 treesize of output 254 [2021-11-21 01:21:04,498 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:21:04,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:04,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:21:04,956 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:21:04,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 165 treesize of output 168 [2021-11-21 01:21:04,981 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:21:04,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 163 [2021-11-21 01:21:05,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:05,742 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:21:05,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 220 treesize of output 209 [2021-11-21 01:21:05,811 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:21:05,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 206 treesize of output 227 [2021-11-21 01:21:05,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:05,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:05,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 219 treesize of output 221 [2021-11-21 01:21:06,843 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:21:06,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:21:07,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:07,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:07,206 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 32 for LOIs [2021-11-21 01:21:07,250 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:21:09,544 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:21:09,544 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:21:09,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 33 [2021-11-21 01:21:09,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992700394] [2021-11-21 01:21:09,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-21 01:21:09,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-21 01:21:09,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:21:09,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-21 01:21:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=2258, Unknown=3, NotChecked=194, Total=2652 [2021-11-21 01:21:09,547 INFO L87 Difference]: Start difference. First operand 303 states and 338 transitions. Second operand has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:11,760 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|))) (let ((.cse0 (store .cse1 (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|))) (and (not (= (select .cse0 |c_ULTIMATE.start_main_~item~0#1.offset|) 0)) (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (or (< |c_ULTIMATE.start_main_~item~0#1.offset| 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|) (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0)))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~data~0#1.base|) 1) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| .cse0) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~item~0#1.base|) 1)))) is different from false [2021-11-21 01:21:13,763 WARN L838 $PredicateComparison]: unable to prove that (and (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (|ULTIMATE.start_main_~node~1#1.offset| Int) (v_DerPreprocessor_2 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |ULTIMATE.start_main_~node~1#1.offset| 0) (+ |ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_2)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) (not (= |c_ULTIMATE.start_main_~data~0#1.base| |c_ULTIMATE.start_main_~node~1#1.base|)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |c_ULTIMATE.start_main_~node~1#1.offset| 0)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0))) is different from false [2021-11-21 01:21:15,766 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((|ULTIMATE.start_main_~item~0#1.base| Int) (v_DerPreprocessor_2 Int)) (not (= (select (select (let ((.cse0 (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) (+ |c_ULTIMATE.start_main_~node~1#1.offset| 4) v_DerPreprocessor_2)))) (store .cse0 |ULTIMATE.start_main_~item~0#1.base| (store (store (select .cse0 |ULTIMATE.start_main_~item~0#1.base|) 0 |c_ULTIMATE.start_main_~node~1#1.base|) 4 |c_ULTIMATE.start_main_~data~0#1.base|))) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~node~1#1.base|) |c_ULTIMATE.start_main_~node~1#1.offset|) 0) (not (= |c_ULTIMATE.start_main_~data~0#1.base| |c_ULTIMATE.start_main_~node~1#1.base|)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0))) is different from false [2021-11-21 01:21:18,042 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base|)) (.cse4 (+ 4 |c_ULTIMATE.start_main_~data~0#1.offset|)) (.cse2 (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~data~0#1.offset|)) (.cse3 (select .cse2 .cse4)) (.cse1 (store .cse5 (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|))) (and (or (= |c_ULTIMATE.start_main_~data~0#1.base| .cse0) (exists ((|ULTIMATE.start_main_~node~1#1.offset| Int)) (= (select (select |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|)) |ULTIMATE.start_main_~node~1#1.offset|) 0))) (not (= (select .cse1 |c_ULTIMATE.start_main_~item~0#1.offset|) 0)) (= |c_ULTIMATE.start_main_~item~0#1.offset| 0) (or (< |c_ULTIMATE.start_main_~item~0#1.offset| 0) (forall ((|ULTIMATE.start_main_~item~0#1.base| Int)) (not (= (select (select (store |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base| (store (store (select |c_#memory_$Pointer$.base| |ULTIMATE.start_main_~item~0#1.base|) |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|) (+ 4 |c_ULTIMATE.start_main_~item~0#1.offset|) |c_ULTIMATE.start_main_~data~0#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) |c_ULTIMATE.start_main_~data~0#1.offset|) 0)))) (= 0 |c_ULTIMATE.start_main_~data~0#1.offset|) (= |c_ULTIMATE.start_main_~node~1#1.offset| 0) (not (= (select .cse2 0) 0)) (not (= .cse0 0)) (not (= .cse3 .cse0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~data~0#1.base|) 1) (not (= (select (select |c_#memory_$Pointer$.base| .cse3) 0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| .cse1) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (not (= |c_ULTIMATE.start_main_~node~1#1.base| 0)) (= 0 (select (select |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_main_~data~0#1.base|) .cse4)) (not (= (select (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_main_~item~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~item~0#1.offset| |c_ULTIMATE.start_main_~node~1#1.base|)) |c_ULTIMATE.start_main_~data~0#1.base|) 0) 0)) (= (select |c_#valid| |c_ULTIMATE.start_main_~item~0#1.base|) 1)))) is different from false [2021-11-21 01:21:18,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:21:18,679 INFO L93 Difference]: Finished difference Result 355 states and 394 transitions. [2021-11-21 01:21:18,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-21 01:21:18,680 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 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 44 [2021-11-21 01:21:18,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:21:18,681 INFO L225 Difference]: With dead ends: 355 [2021-11-21 01:21:18,681 INFO L226 Difference]: Without dead ends: 355 [2021-11-21 01:21:18,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 92 SyntacticMatches, 4 SemanticMatches, 63 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 871 ImplicationChecksByTransitivity, 19.5s TimeCoverageRelationStatistics Valid=320, Invalid=3119, Unknown=7, NotChecked=714, Total=4160 [2021-11-21 01:21:18,684 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 89 mSDsluCounter, 3171 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 3268 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 920 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:21:18,684 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 3268 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 565 Invalid, 0 Unknown, 920 Unchecked, 0.5s Time] [2021-11-21 01:21:18,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-11-21 01:21:18,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 303. [2021-11-21 01:21:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5186915887850467) internal successors, (325), 300 states have internal predecessors, (325), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:21:18,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 337 transitions. [2021-11-21 01:21:18,708 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 337 transitions. Word has length 44 [2021-11-21 01:21:18,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:21:18,709 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 337 transitions. [2021-11-21 01:21:18,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.272727272727273) internal successors, (108), 33 states have internal predecessors, (108), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:18,709 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 337 transitions. [2021-11-21 01:21:18,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-21 01:21:18,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:21:18,710 INFO L514 BasicCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:21:18,742 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:21:18,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:21:18,924 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:21:18,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:21:18,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1904378488, now seen corresponding path program 1 times [2021-11-21 01:21:18,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:21:18,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196718751] [2021-11-21 01:21:18,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:18,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:21:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:19,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:21:19,072 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:21:19,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196718751] [2021-11-21 01:21:19,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196718751] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:21:19,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:21:19,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-21 01:21:19,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768508906] [2021-11-21 01:21:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:21:19,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:21:19,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:21:19,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:21:19,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-21 01:21:19,075 INFO L87 Difference]: Start difference. First operand 303 states and 337 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:21:19,634 INFO L93 Difference]: Finished difference Result 323 states and 357 transitions. [2021-11-21 01:21:19,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:21:19,635 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 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 44 [2021-11-21 01:21:19,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:21:19,637 INFO L225 Difference]: With dead ends: 323 [2021-11-21 01:21:19,637 INFO L226 Difference]: Without dead ends: 323 [2021-11-21 01:21:19,638 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-11-21 01:21:19,638 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 135 mSDsluCounter, 1133 mSDsCounter, 0 mSdLazyCounter, 503 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1214 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:21:19,638 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1214 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 503 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:21:19,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-21 01:21:19,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 302. [2021-11-21 01:21:19,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 213 states have (on average 1.516431924882629) internal successors, (323), 299 states have internal predecessors, (323), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:21:19,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 335 transitions. [2021-11-21 01:21:19,647 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 335 transitions. Word has length 44 [2021-11-21 01:21:19,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:21:19,647 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 335 transitions. [2021-11-21 01:21:19,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 9 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:21:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 335 transitions. [2021-11-21 01:21:19,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:21:19,648 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:21:19,649 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:21:19,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-11-21 01:21:19,649 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:21:19,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:21:19,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115697, now seen corresponding path program 1 times [2021-11-21 01:21:19,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:21:19,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526315407] [2021-11-21 01:21:19,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:19,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:21:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:21:20,150 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:21:20,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526315407] [2021-11-21 01:21:20,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526315407] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:21:20,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1169011085] [2021-11-21 01:21:20,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:21:20,150 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:21:20,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:21:20,151 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:21:20,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:21:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:21:20,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-21 01:21:20,219 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:21:20,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:20,257 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:21:20,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:20,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 17 [2021-11-21 01:21:20,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:20,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 31 treesize of output 26 [2021-11-21 01:21:20,398 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-21 01:21:20,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 26 treesize of output 41 [2021-11-21 01:21:20,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 37 treesize of output 28 [2021-11-21 01:21:20,537 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-21 01:21:20,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 73 treesize of output 52 [2021-11-21 01:21:20,571 INFO L354 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2021-11-21 01:21:20,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 54 treesize of output 76 [2021-11-21 01:21:20,670 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-21 01:21:20,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 65 treesize of output 55 [2021-11-21 01:21:20,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:20,788 INFO L354 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2021-11-21 01:21:20,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 4 case distinctions, treesize of input 92 treesize of output 72 [2021-11-21 01:21:20,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:21:21,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 133 treesize of output 125 [2021-11-21 01:21:22,275 INFO L354 Elim1Store]: treesize reduction 41, result has 8.9 percent of original size [2021-11-21 01:21:22,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 123 treesize of output 57 [2021-11-21 01:21:22,356 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:21:22,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:21:33,460 WARN L227 SmtUtils]: Spent 6.21s on a formula simplification that was a NOOP. DAG size: 1836 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-21 01:21:33,515 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-21 01:21:33,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1567322391] [2021-11-21 01:21:33,517 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-21 01:21:33,518 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:21:33,518 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:21:33,518 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:21:33,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:21:33,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:33,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:21:33,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:21:33,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:33,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:33,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 36 treesize of output 38 [2021-11-21 01:21:33,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:21:33,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:33,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 38 [2021-11-21 01:21:34,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:21:34,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:21:34,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 38 [2021-11-21 01:21:34,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:21:34,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 42 [2021-11-21 01:21:34,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,710 INFO L354 Elim1Store]: treesize reduction 86, result has 18.1 percent of original size [2021-11-21 01:21:34,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 219 treesize of output 187 [2021-11-21 01:21:34,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,738 INFO L354 Elim1Store]: treesize reduction 103, result has 14.2 percent of original size [2021-11-21 01:21:34,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 215 treesize of output 195 [2021-11-21 01:21:34,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,772 INFO L354 Elim1Store]: treesize reduction 86, result has 18.1 percent of original size [2021-11-21 01:21:34,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 200 treesize of output 192 [2021-11-21 01:21:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:34,979 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:35,011 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 01:21:35,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 309 treesize of output 261 [2021-11-21 01:21:35,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,032 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:35,076 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 01:21:35,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 290 treesize of output 270 [2021-11-21 01:21:35,194 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-21 01:21:35,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 271 treesize of output 283 [2021-11-21 01:21:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,224 INFO L354 Elim1Store]: treesize reduction 103, result has 14.2 percent of original size [2021-11-21 01:21:35,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 270 treesize of output 261 [2021-11-21 01:21:35,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,549 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:21:35,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 274 treesize of output 241 [2021-11-21 01:21:35,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,606 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:21:35,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 8 case distinctions, treesize of input 270 treesize of output 265 [2021-11-21 01:21:35,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,639 INFO L354 Elim1Store]: treesize reduction 127, result has 11.8 percent of original size [2021-11-21 01:21:35,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 case distinctions, treesize of input 266 treesize of output 243 [2021-11-21 01:21:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:35,983 INFO L354 Elim1Store]: treesize reduction 224, result has 15.8 percent of original size [2021-11-21 01:21:35,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 538 treesize of output 514 [2021-11-21 01:21:35,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:35,996 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:35,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:36,059 INFO L354 Elim1Store]: treesize reduction 200, result has 25.1 percent of original size [2021-11-21 01:21:36,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 7 case distinctions, treesize of input 720 treesize of output 689 [2021-11-21 01:21:36,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:36,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:36,073 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:36,160 INFO L354 Elim1Store]: treesize reduction 332, result has 16.6 percent of original size [2021-11-21 01:21:36,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 706 treesize of output 682 [2021-11-21 01:21:39,099 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-21 01:21:39,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 756 treesize of output 785 [2021-11-21 01:21:43,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:43,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:43,015 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:43,159 INFO L354 Elim1Store]: treesize reduction 420, result has 12.9 percent of original size [2021-11-21 01:21:43,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 10 new quantified variables, introduced 19 case distinctions, treesize of input 964 treesize of output 618 [2021-11-21 01:21:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:43,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:43,172 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:43,307 INFO L354 Elim1Store]: treesize reduction 392, result has 13.3 percent of original size [2021-11-21 01:21:43,307 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 11 new quantified variables, introduced 19 case distinctions, treesize of input 1003 treesize of output 800 [2021-11-21 01:21:43,401 INFO L354 Elim1Store]: treesize reduction 358, result has 23.2 percent of original size [2021-11-21 01:21:43,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 8 case distinctions, treesize of input 1042 treesize of output 993 [2021-11-21 01:21:46,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:46,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:46,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:46,037 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:46,508 INFO L354 Elim1Store]: treesize reduction 540, result has 10.9 percent of original size [2021-11-21 01:21:46,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 26 case distinctions, treesize of input 1034 treesize of output 678 [2021-11-21 01:21:46,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:46,525 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:46,526 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:46,697 INFO L354 Elim1Store]: treesize reduction 510, result has 11.1 percent of original size [2021-11-21 01:21:46,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 26 case distinctions, treesize of input 1060 treesize of output 847 [2021-11-21 01:21:46,901 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-21 01:21:46,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 27 case distinctions, treesize of input 1086 treesize of output 1112 [2021-11-21 01:21:46,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:46,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:47,009 INFO L354 Elim1Store]: treesize reduction 340, result has 22.6 percent of original size [2021-11-21 01:21:47,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 1108 treesize of output 1068 [2021-11-21 01:21:52,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:52,777 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:53,175 INFO L354 Elim1Store]: treesize reduction 510, result has 11.9 percent of original size [2021-11-21 01:21:53,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 11 new quantified variables, introduced 27 case distinctions, treesize of input 1068 treesize of output 695 [2021-11-21 01:21:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:53,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:21:53,400 INFO L354 Elim1Store]: treesize reduction 480, result has 12.2 percent of original size [2021-11-21 01:21:53,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 12 new quantified variables, introduced 27 case distinctions, treesize of input 1107 treesize of output 901 [2021-11-21 01:21:53,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:53,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:53,533 INFO L354 Elim1Store]: treesize reduction 430, result has 20.1 percent of original size [2021-11-21 01:21:53,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 5 new quantified variables, introduced 12 case distinctions, treesize of input 1146 treesize of output 1094 [2021-11-21 01:21:57,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:21:57,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:21:57,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:21:57,947 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:21:57,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:21:57,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 14 treesize of output 16 [2021-11-21 01:21:58,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 30 treesize of output 23 [2021-11-21 01:21:58,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:21:58,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:21:58,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 18 [2021-11-21 01:21:58,187 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:21:58,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:21:58,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:58,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 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 [2021-11-21 01:21:58,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 29 [2021-11-21 01:21:58,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:58,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 26 [2021-11-21 01:21:58,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 33 [2021-11-21 01:21:58,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2021-11-21 01:21:58,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:21:58,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 18 [2021-11-21 01:21:58,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:21:58,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:21:58,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 16 [2021-11-21 01:22:09,013 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-21 01:22:09,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 234 treesize of output 254 [2021-11-21 01:22:10,306 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:22:10,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:10,609 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-21 01:22:10,609 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 165 treesize of output 168 [2021-11-21 01:22:10,628 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-21 01:22:10,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 168 treesize of output 163 [2021-11-21 01:22:11,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:22:11,520 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-21 01:22:11,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 9 case distinctions, treesize of input 220 treesize of output 241 [2021-11-21 01:22:11,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:11,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 233 treesize of output 235 [2021-11-21 01:22:11,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:11,565 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-21 01:22:11,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 232 treesize of output 221 [2021-11-21 01:22:13,148 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:22:13,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 22 treesize of output 33 [2021-11-21 01:22:13,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:13,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:13,795 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:22:17,111 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-21 01:22:17,112 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:22:17,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-11-21 01:22:17,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282816198] [2021-11-21 01:22:17,112 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-21 01:22:17,112 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-21 01:22:17,112 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:22:17,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-21 01:22:17,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=343, Invalid=4077, Unknown=2, NotChecked=0, Total=4422 [2021-11-21 01:22:17,114 INFO L87 Difference]: Start difference. First operand 302 states and 335 transitions. Second operand has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:22:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:22:19,589 INFO L93 Difference]: Finished difference Result 526 states and 579 transitions. [2021-11-21 01:22:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-21 01:22:19,590 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-11-21 01:22:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:22:19,592 INFO L225 Difference]: With dead ends: 526 [2021-11-21 01:22:19,592 INFO L226 Difference]: Without dead ends: 526 [2021-11-21 01:22:19,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1952 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=705, Invalid=6265, Unknown=2, NotChecked=0, Total=6972 [2021-11-21 01:22:19,594 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 2089 mSDsluCounter, 1506 mSDsCounter, 0 mSdLazyCounter, 1699 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2091 SdHoareTripleChecker+Valid, 1626 SdHoareTripleChecker+Invalid, 1806 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:22:19,595 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2091 Valid, 1626 Invalid, 1806 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1699 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-11-21 01:22:19,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-11-21 01:22:19,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 303. [2021-11-21 01:22:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 214 states have (on average 1.5186915887850467) internal successors, (325), 300 states have internal predecessors, (325), 10 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:22:19,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 337 transitions. [2021-11-21 01:22:19,602 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 337 transitions. Word has length 45 [2021-11-21 01:22:19,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:22:19,602 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 337 transitions. [2021-11-21 01:22:19,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.5) internal successors, (45), 19 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:22:19,603 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 337 transitions. [2021-11-21 01:22:19,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:22:19,603 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:22:19,604 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:22:19,641 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 01:22:19,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-11-21 01:22:19,817 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-21 01:22:19,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:22:19,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115698, now seen corresponding path program 1 times [2021-11-21 01:22:19,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:22:19,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769004642] [2021-11-21 01:22:19,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:19,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:22:19,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:20,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:22:20,731 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:22:20,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769004642] [2021-11-21 01:22:20,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769004642] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-21 01:22:20,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000794919] [2021-11-21 01:22:20,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:22:20,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:22:20,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:22:20,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:22:20,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2e723f6f-8621-404c-9a25-035516b5815f/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 01:22:20,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:22:20,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-21 01:22:20,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:22:20,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:20,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:20,931 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-21 01:22:20,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 19 [2021-11-21 01:22:20,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-11-21 01:22:20,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:22:21,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:21,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:21,159 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-11-21 01:22:21,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 21 treesize of output 26 [2021-11-21 01:22:21,190 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:22:21,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:21,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-21 01:22:21,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 0 case distinctions, treesize of input 28 treesize of output 30 [2021-11-21 01:22:21,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 43 treesize of output 33 [2021-11-21 01:22:21,424 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-21 01:22:21,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2021-11-21 01:22:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 39 [2021-11-21 01:22:21,446 INFO L354 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2021-11-21 01:22:21,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 33 treesize of output 41 [2021-11-21 01:22:21,539 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-21 01:22:21,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 75 treesize of output 77 [2021-11-21 01:22:21,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,550 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-11-21 01:22:21,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 3 case distinctions, treesize of input 84 treesize of output 89 [2021-11-21 01:22:21,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,650 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-21 01:22:21,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 4 new quantified variables, introduced 3 case distinctions, treesize of input 113 treesize of output 105 [2021-11-21 01:22:21,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:22:21,654 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:22:21,663 INFO L354 Elim1Store]: treesize reduction 79, result has 14.1 percent of original size [2021-11-21 01:22:21,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 7 case distinctions, treesize of input 136 treesize of output 144 [2021-11-21 01:22:23,321 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-21 01:22:23,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 10 case distinctions, treesize of input 153 treesize of output 94 [2021-11-21 01:22:23,337 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-21 01:22:23,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 79 treesize of output 57 [2021-11-21 01:22:23,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:22:23,413 INFO L328 TraceCheckSpWp]: Computing backward predicates...