./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 aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/config/TaipanMemDerefMemtrack.xml -i ../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V --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-aef121e [2021-11-23 03:14:19,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:14:19,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:14:19,638 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:14:19,639 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:14:19,640 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:14:19,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:14:19,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:14:19,647 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:14:19,649 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:14:19,650 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:14:19,652 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:14:19,653 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:14:19,656 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:14:19,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:14:19,662 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:14:19,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:14:19,674 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:14:19,677 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:14:19,680 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:14:19,686 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:14:19,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:14:19,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:14:19,694 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:14:19,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:14:19,704 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:14:19,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:14:19,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:14:19,708 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:14:19,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:14:19,711 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:14:19,712 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:14:19,714 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:14:19,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:14:19,718 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:14:19,718 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:14:19,719 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:14:19,719 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:14:19,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:14:19,720 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:14:19,721 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:14:19,722 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/config/svcomp-DerefFreeMemtrack-32bit-Taipan_Default.epf [2021-11-23 03:14:19,776 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:14:19,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:14:19,779 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:14:19,780 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:14:19,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:14:19,782 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:14:19,782 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:14:19,782 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:14:19,782 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:14:19,783 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:14:19,784 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:14:19,784 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:14:19,784 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:14:19,785 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:14:19,785 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:14:19,785 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:14:19,785 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:14:19,786 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:14:19,786 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 03:14:19,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 03:14:19,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:14:19,787 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:14:19,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-23 03:14:19,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:14:19,788 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:14:19,788 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:14:19,788 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-11-23 03:14:19,789 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-11-23 03:14:19,789 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-11-23 03:14:19,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:14:19,790 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 03:14:19,790 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:14:19,790 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:14:19,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:14:19,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:14:19,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:14:19,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:14:19,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:14:19,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:14:19,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:14:19,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:14:19,794 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:14:19,794 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_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e47f94c757882803b8e19e21a897c3f5ab1653c3391e3b246153a1c416bdab7c [2021-11-23 03:14:20,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:14:20,196 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:14:20,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:14:20,200 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:14:20,201 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:14:20,203 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2021-11-23 03:14:20,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/data/bc28f07e5/8029c824a63e40a3bbcb23514ec5aea1/FLAG9d7f62650 [2021-11-23 03:14:21,058 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:14:21,059 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/sv-benchmarks/c/heap-manipulation/merge_sort-2.i [2021-11-23 03:14:21,089 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/data/bc28f07e5/8029c824a63e40a3bbcb23514ec5aea1/FLAG9d7f62650 [2021-11-23 03:14:21,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/data/bc28f07e5/8029c824a63e40a3bbcb23514ec5aea1 [2021-11-23 03:14:21,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:14:21,288 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:14:21,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:14:21,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:14:21,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:14:21,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:21,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f5a7ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21, skipping insertion in model container [2021-11-23 03:14:21,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:21,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:14:21,370 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:14:21,746 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_815209f0-aa4d-472f-8027-7403ec002558/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2021-11-23 03:14:21,785 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:14:21,796 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:14:21,842 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_815209f0-aa4d-472f-8027-7403ec002558/sv-benchmarks/c/heap-manipulation/merge_sort-2.i[22632,22645] [2021-11-23 03:14:21,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:14:21,907 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:14:21,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21 WrapperNode [2021-11-23 03:14:21,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:14:21,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:14:21,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:14:21,914 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:14:21,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:21,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,011 INFO L137 Inliner]: procedures = 125, calls = 83, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 294 [2021-11-23 03:14:22,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:14:22,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:14:22,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:14:22,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:14:22,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,050 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:14:22,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:14:22,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:14:22,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:14:22,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (1/1) ... [2021-11-23 03:14:22,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:14:22,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:22,144 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:14:22,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:14:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:14:22,200 INFO L130 BoogieDeclarations]: Found specification of procedure merge_single_node [2021-11-23 03:14:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure merge_single_node [2021-11-23 03:14:22,201 INFO L130 BoogieDeclarations]: Found specification of procedure fail [2021-11-23 03:14:22,201 INFO L138 BoogieDeclarations]: Found implementation of procedure fail [2021-11-23 03:14:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:14:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:14:22,202 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:14:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:14:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:14:22,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:14:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:14:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:14:22,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:14:22,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:14:22,348 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:14:22,350 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:14:23,290 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:14:23,412 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:14:23,412 INFO L301 CfgBuilder]: Removed 33 assume(true) statements. [2021-11-23 03:14:23,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:23 BoogieIcfgContainer [2021-11-23 03:14:23,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:14:23,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:14:23,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:14:23,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:14:23,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:14:21" (1/3) ... [2021-11-23 03:14:23,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4509633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:23, skipping insertion in model container [2021-11-23 03:14:23,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:14:21" (2/3) ... [2021-11-23 03:14:23,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4509633 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:14:23, skipping insertion in model container [2021-11-23 03:14:23,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:14:23" (3/3) ... [2021-11-23 03:14:23,429 INFO L111 eAbstractionObserver]: Analyzing ICFG merge_sort-2.i [2021-11-23 03:14:23,436 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:14:23,436 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 105 error locations. [2021-11-23 03:14:23,546 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:14:23,561 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 [2021-11-23 03:14:23,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2021-11-23 03:14:23,599 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) [2021-11-23 03:14:23,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:14:23,622 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:23,623 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:14:23,623 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)] === [2021-11-23 03:14:23,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:23,630 INFO L85 PathProgramCache]: Analyzing trace with hash 18345167, now seen corresponding path program 1 times [2021-11-23 03:14:23,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:23,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047873895] [2021-11-23 03:14:23,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:23,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:23,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:23,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:23,862 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047873895] [2021-11-23 03:14:23,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047873895] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:23,863 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:23,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:23,866 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134787627] [2021-11-23 03:14:23,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:23,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:23,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:23,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:23,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:23,923 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) [2021-11-23 03:14:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:24,492 INFO L93 Difference]: Finished difference Result 396 states and 447 transitions. [2021-11-23 03:14:24,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:24,495 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 [2021-11-23 03:14:24,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:24,528 INFO L225 Difference]: With dead ends: 396 [2021-11-23 03:14:24,528 INFO L226 Difference]: Without dead ends: 394 [2021-11-23 03:14:24,530 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 [2021-11-23 03:14:24,537 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 [2021-11-23 03:14:24,539 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] [2021-11-23 03:14:24,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-23 03:14:24,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 226. [2021-11-23 03:14:24,633 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) [2021-11-23 03:14:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 251 transitions. [2021-11-23 03:14:24,637 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 251 transitions. Word has length 4 [2021-11-23 03:14:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:24,638 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 251 transitions. [2021-11-23 03:14:24,638 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) [2021-11-23 03:14:24,638 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 251 transitions. [2021-11-23 03:14:24,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-23 03:14:24,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:24,639 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-23 03:14:24,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:14:24,640 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)] === [2021-11-23 03:14:24,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:24,641 INFO L85 PathProgramCache]: Analyzing trace with hash 18345168, now seen corresponding path program 1 times [2021-11-23 03:14:24,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:24,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088369491] [2021-11-23 03:14:24,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:24,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:24,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:24,698 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:24,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088369491] [2021-11-23 03:14:24,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088369491] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:24,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:24,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:24,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50182680] [2021-11-23 03:14:24,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:24,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:24,702 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:24,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:24,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:24,704 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) [2021-11-23 03:14:25,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:25,044 INFO L93 Difference]: Finished difference Result 360 states and 405 transitions. [2021-11-23 03:14:25,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:25,045 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 [2021-11-23 03:14:25,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:25,048 INFO L225 Difference]: With dead ends: 360 [2021-11-23 03:14:25,049 INFO L226 Difference]: Without dead ends: 360 [2021-11-23 03:14:25,049 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 [2021-11-23 03:14:25,051 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 148 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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 [2021-11-23 03:14:25,052 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] [2021-11-23 03:14:25,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-23 03:14:25,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 224. [2021-11-23 03:14:25,072 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) [2021-11-23 03:14:25,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 249 transitions. [2021-11-23 03:14:25,074 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 249 transitions. Word has length 4 [2021-11-23 03:14:25,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:25,075 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 249 transitions. [2021-11-23 03:14:25,075 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) [2021-11-23 03:14:25,075 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 249 transitions. [2021-11-23 03:14:25,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-11-23 03:14:25,076 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:25,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-11-23 03:14:25,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:14:25,076 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)] === [2021-11-23 03:14:25,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:25,077 INFO L85 PathProgramCache]: Analyzing trace with hash 568154688, now seen corresponding path program 1 times [2021-11-23 03:14:25,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:25,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879979929] [2021-11-23 03:14:25,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:25,078 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:25,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:25,109 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:25,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879979929] [2021-11-23 03:14:25,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879979929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:25,111 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:25,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-23 03:14:25,112 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099343109] [2021-11-23 03:14:25,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:25,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:25,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:25,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:25,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:25,115 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) [2021-11-23 03:14:25,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:25,396 INFO L93 Difference]: Finished difference Result 349 states and 393 transitions. [2021-11-23 03:14:25,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:25,397 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 [2021-11-23 03:14:25,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:25,400 INFO L225 Difference]: With dead ends: 349 [2021-11-23 03:14:25,400 INFO L226 Difference]: Without dead ends: 348 [2021-11-23 03:14:25,400 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 [2021-11-23 03:14:25,402 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 [2021-11-23 03:14:25,403 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] [2021-11-23 03:14:25,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2021-11-23 03:14:25,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 227. [2021-11-23 03:14:25,440 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) [2021-11-23 03:14:25,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 253 transitions. [2021-11-23 03:14:25,445 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 253 transitions. Word has length 5 [2021-11-23 03:14:25,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:25,446 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 253 transitions. [2021-11-23 03:14:25,446 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) [2021-11-23 03:14:25,447 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 253 transitions. [2021-11-23 03:14:25,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 03:14:25,447 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:25,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 03:14:25,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 03:14:25,448 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)] === [2021-11-23 03:14:25,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:25,450 INFO L85 PathProgramCache]: Analyzing trace with hash 450363646, now seen corresponding path program 1 times [2021-11-23 03:14:25,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:25,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384876188] [2021-11-23 03:14:25,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:25,453 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:25,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:25,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:25,548 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:25,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384876188] [2021-11-23 03:14:25,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384876188] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:25,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:25,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:25,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340114393] [2021-11-23 03:14:25,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:25,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:25,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:25,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:25,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:25,552 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) [2021-11-23 03:14:25,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:25,836 INFO L93 Difference]: Finished difference Result 360 states and 404 transitions. [2021-11-23 03:14:25,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:25,837 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 [2021-11-23 03:14:25,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:25,839 INFO L225 Difference]: With dead ends: 360 [2021-11-23 03:14:25,840 INFO L226 Difference]: Without dead ends: 360 [2021-11-23 03:14:25,840 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 [2021-11-23 03:14:25,842 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:25,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 466 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:14:25,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-11-23 03:14:25,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 225. [2021-11-23 03:14:25,854 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) [2021-11-23 03:14:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 251 transitions. [2021-11-23 03:14:25,857 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 251 transitions. Word has length 6 [2021-11-23 03:14:25,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:25,857 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 251 transitions. [2021-11-23 03:14:25,858 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) [2021-11-23 03:14:25,858 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 251 transitions. [2021-11-23 03:14:25,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-23 03:14:25,867 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:25,867 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-23 03:14:25,867 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 03:14:25,868 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)] === [2021-11-23 03:14:25,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:25,869 INFO L85 PathProgramCache]: Analyzing trace with hash 450363645, now seen corresponding path program 1 times [2021-11-23 03:14:25,869 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:25,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635396448] [2021-11-23 03:14:25,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:25,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:25,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:25,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:25,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:25,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635396448] [2021-11-23 03:14:25,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635396448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:25,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:25,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:25,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42059713] [2021-11-23 03:14:25,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:25,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:25,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:25,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:25,921 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) [2021-11-23 03:14:26,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:26,240 INFO L93 Difference]: Finished difference Result 390 states and 440 transitions. [2021-11-23 03:14:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:26,241 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 [2021-11-23 03:14:26,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:26,245 INFO L225 Difference]: With dead ends: 390 [2021-11-23 03:14:26,245 INFO L226 Difference]: Without dead ends: 390 [2021-11-23 03:14:26,246 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 [2021-11-23 03:14:26,248 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 [2021-11-23 03:14:26,248 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] [2021-11-23 03:14:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2021-11-23 03:14:26,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 223. [2021-11-23 03:14:26,260 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) [2021-11-23 03:14:26,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 249 transitions. [2021-11-23 03:14:26,262 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 249 transitions. Word has length 6 [2021-11-23 03:14:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:26,262 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 249 transitions. [2021-11-23 03:14:26,262 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) [2021-11-23 03:14:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 249 transitions. [2021-11-23 03:14:26,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 03:14:26,263 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:26,263 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:26,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 03:14:26,264 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)] === [2021-11-23 03:14:26,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:26,265 INFO L85 PathProgramCache]: Analyzing trace with hash 535440203, now seen corresponding path program 1 times [2021-11-23 03:14:26,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:26,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926406364] [2021-11-23 03:14:26,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:26,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:26,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:26,298 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:26,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926406364] [2021-11-23 03:14:26,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926406364] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:26,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:26,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:14:26,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698533172] [2021-11-23 03:14:26,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:26,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:14:26,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:26,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:14:26,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:14:26,301 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) [2021-11-23 03:14:26,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:26,390 INFO L93 Difference]: Finished difference Result 229 states and 253 transitions. [2021-11-23 03:14:26,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:14:26,392 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 [2021-11-23 03:14:26,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:26,394 INFO L225 Difference]: With dead ends: 229 [2021-11-23 03:14:26,395 INFO L226 Difference]: Without dead ends: 228 [2021-11-23 03:14:26,395 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 [2021-11-23 03:14:26,396 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 [2021-11-23 03:14:26,397 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] [2021-11-23 03:14:26,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2021-11-23 03:14:26,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 222. [2021-11-23 03:14:26,404 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) [2021-11-23 03:14:26,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 247 transitions. [2021-11-23 03:14:26,406 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 247 transitions. Word has length 7 [2021-11-23 03:14:26,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:26,407 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 247 transitions. [2021-11-23 03:14:26,407 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) [2021-11-23 03:14:26,407 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 247 transitions. [2021-11-23 03:14:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 03:14:26,408 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:26,408 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:26,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 03:14:26,408 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)] === [2021-11-23 03:14:26,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:26,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1154009547, now seen corresponding path program 1 times [2021-11-23 03:14:26,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:26,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32853118] [2021-11-23 03:14:26,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:26,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:26,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:26,469 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:26,469 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:26,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32853118] [2021-11-23 03:14:26,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32853118] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:26,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:26,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:14:26,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401994548] [2021-11-23 03:14:26,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:26,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:14:26,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:26,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:14:26,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:14:26,472 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) [2021-11-23 03:14:26,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:26,669 INFO L93 Difference]: Finished difference Result 353 states and 393 transitions. [2021-11-23 03:14:26,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:14:26,670 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 [2021-11-23 03:14:26,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:26,673 INFO L225 Difference]: With dead ends: 353 [2021-11-23 03:14:26,673 INFO L226 Difference]: Without dead ends: 353 [2021-11-23 03:14:26,673 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 [2021-11-23 03:14:26,675 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:26,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [537 Valid, 380 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:14:26,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2021-11-23 03:14:26,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 222. [2021-11-23 03:14:26,684 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) [2021-11-23 03:14:26,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 246 transitions. [2021-11-23 03:14:26,686 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 246 transitions. Word has length 11 [2021-11-23 03:14:26,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:26,686 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 246 transitions. [2021-11-23 03:14:26,686 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) [2021-11-23 03:14:26,686 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 246 transitions. [2021-11-23 03:14:26,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:14:26,687 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:26,687 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:26,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 03:14:26,688 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)] === [2021-11-23 03:14:26,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:26,688 INFO L85 PathProgramCache]: Analyzing trace with hash -901980672, now seen corresponding path program 1 times [2021-11-23 03:14:26,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:26,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140044518] [2021-11-23 03:14:26,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:26,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:26,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:26,762 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:26,763 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:26,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140044518] [2021-11-23 03:14:26,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140044518] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:26,763 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:26,763 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:14:26,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825090540] [2021-11-23 03:14:26,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:26,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:14:26,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:26,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:14:26,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:14:26,765 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) [2021-11-23 03:14:27,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:27,083 INFO L93 Difference]: Finished difference Result 627 states and 702 transitions. [2021-11-23 03:14:27,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:14:27,084 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 [2021-11-23 03:14:27,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:27,089 INFO L225 Difference]: With dead ends: 627 [2021-11-23 03:14:27,089 INFO L226 Difference]: Without dead ends: 627 [2021-11-23 03:14:27,090 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 [2021-11-23 03:14:27,091 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 [2021-11-23 03:14:27,091 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] [2021-11-23 03:14:27,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-11-23 03:14:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 247. [2021-11-23 03:14:27,104 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) [2021-11-23 03:14:27,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 295 transitions. [2021-11-23 03:14:27,106 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 295 transitions. Word has length 13 [2021-11-23 03:14:27,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:27,106 INFO L470 AbstractCegarLoop]: Abstraction has 247 states and 295 transitions. [2021-11-23 03:14:27,107 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) [2021-11-23 03:14:27,107 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 295 transitions. [2021-11-23 03:14:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:14:27,108 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:27,108 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:27,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 03:14:27,108 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)] === [2021-11-23 03:14:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash -901991921, now seen corresponding path program 1 times [2021-11-23 03:14:27,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:27,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249529258] [2021-11-23 03:14:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:27,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:27,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:27,166 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:27,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:27,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249529258] [2021-11-23 03:14:27,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249529258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:27,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:27,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:14:27,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992748508] [2021-11-23 03:14:27,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:27,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:14:27,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:27,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:14:27,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:14:27,169 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) [2021-11-23 03:14:27,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:27,673 INFO L93 Difference]: Finished difference Result 403 states and 470 transitions. [2021-11-23 03:14:27,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:14:27,674 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 [2021-11-23 03:14:27,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:27,677 INFO L225 Difference]: With dead ends: 403 [2021-11-23 03:14:27,678 INFO L226 Difference]: Without dead ends: 403 [2021-11-23 03:14:27,678 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 [2021-11-23 03:14:27,679 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 [2021-11-23 03:14:27,679 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] [2021-11-23 03:14:27,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2021-11-23 03:14:27,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 238. [2021-11-23 03:14:27,688 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) [2021-11-23 03:14:27,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 283 transitions. [2021-11-23 03:14:27,691 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 283 transitions. Word has length 13 [2021-11-23 03:14:27,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:27,691 INFO L470 AbstractCegarLoop]: Abstraction has 238 states and 283 transitions. [2021-11-23 03:14:27,691 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) [2021-11-23 03:14:27,692 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 283 transitions. [2021-11-23 03:14:27,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:14:27,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:27,692 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:27,693 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 03:14:27,693 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)] === [2021-11-23 03:14:27,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:27,693 INFO L85 PathProgramCache]: Analyzing trace with hash -901991920, now seen corresponding path program 1 times [2021-11-23 03:14:27,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:27,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442782303] [2021-11-23 03:14:27,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:27,694 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:27,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:27,773 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:27,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442782303] [2021-11-23 03:14:27,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442782303] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:27,774 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:27,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:14:27,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846626374] [2021-11-23 03:14:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:27,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:14:27,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:27,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:14:27,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:14:27,776 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) [2021-11-23 03:14:28,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:28,346 INFO L93 Difference]: Finished difference Result 534 states and 596 transitions. [2021-11-23 03:14:28,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:14:28,347 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 [2021-11-23 03:14:28,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:28,351 INFO L225 Difference]: With dead ends: 534 [2021-11-23 03:14:28,351 INFO L226 Difference]: Without dead ends: 534 [2021-11-23 03:14:28,352 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 [2021-11-23 03:14:28,353 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 [2021-11-23 03:14:28,353 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] [2021-11-23 03:14:28,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2021-11-23 03:14:28,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 258. [2021-11-23 03:14:28,365 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) [2021-11-23 03:14:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 307 transitions. [2021-11-23 03:14:28,367 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 307 transitions. Word has length 13 [2021-11-23 03:14:28,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:28,367 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 307 transitions. [2021-11-23 03:14:28,367 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) [2021-11-23 03:14:28,368 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 307 transitions. [2021-11-23 03:14:28,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:14:28,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:28,369 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:28,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-23 03:14:28,369 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)] === [2021-11-23 03:14:28,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:28,370 INFO L85 PathProgramCache]: Analyzing trace with hash -256693872, now seen corresponding path program 1 times [2021-11-23 03:14:28,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:28,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629648454] [2021-11-23 03:14:28,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:28,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:28,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:28,454 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:14:28,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:28,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629648454] [2021-11-23 03:14:28,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629648454] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:28,455 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:28,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:14:28,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267313115] [2021-11-23 03:14:28,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:28,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:14:28,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:28,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:14:28,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:14:28,457 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) [2021-11-23 03:14:28,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:28,731 INFO L93 Difference]: Finished difference Result 332 states and 387 transitions. [2021-11-23 03:14:28,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:14:28,732 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 [2021-11-23 03:14:28,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:28,734 INFO L225 Difference]: With dead ends: 332 [2021-11-23 03:14:28,734 INFO L226 Difference]: Without dead ends: 332 [2021-11-23 03:14:28,735 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 [2021-11-23 03:14:28,735 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:28,736 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 662 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:14:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-11-23 03:14:28,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 257. [2021-11-23 03:14:28,744 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) [2021-11-23 03:14:28,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 304 transitions. [2021-11-23 03:14:28,746 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 304 transitions. Word has length 20 [2021-11-23 03:14:28,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:28,747 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 304 transitions. [2021-11-23 03:14:28,747 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) [2021-11-23 03:14:28,747 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 304 transitions. [2021-11-23 03:14:28,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-23 03:14:28,748 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:28,748 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:14:28,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-23 03:14:28,749 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)] === [2021-11-23 03:14:28,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:28,749 INFO L85 PathProgramCache]: Analyzing trace with hash -937110950, now seen corresponding path program 1 times [2021-11-23 03:14:28,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:28,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424794422] [2021-11-23 03:14:28,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:28,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:28,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:28,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:14:28,835 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:28,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424794422] [2021-11-23 03:14:28,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424794422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:28,836 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:28,836 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-23 03:14:28,836 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723977740] [2021-11-23 03:14:28,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:28,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:14:28,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:28,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:14:28,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:14:28,838 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) [2021-11-23 03:14:29,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:29,078 INFO L93 Difference]: Finished difference Result 256 states and 301 transitions. [2021-11-23 03:14:29,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:14:29,079 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 [2021-11-23 03:14:29,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:29,081 INFO L225 Difference]: With dead ends: 256 [2021-11-23 03:14:29,081 INFO L226 Difference]: Without dead ends: 256 [2021-11-23 03:14:29,082 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 [2021-11-23 03:14:29,082 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 [2021-11-23 03:14:29,083 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] [2021-11-23 03:14:29,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-23 03:14:29,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-23 03:14:29,091 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) [2021-11-23 03:14:29,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 301 transitions. [2021-11-23 03:14:29,094 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 301 transitions. Word has length 20 [2021-11-23 03:14:29,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:29,094 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 301 transitions. [2021-11-23 03:14:29,095 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) [2021-11-23 03:14:29,095 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 301 transitions. [2021-11-23 03:14:29,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:14:29,096 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:29,096 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] [2021-11-23 03:14:29,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-11-23 03:14:29,097 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)] === [2021-11-23 03:14:29,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:29,098 INFO L85 PathProgramCache]: Analyzing trace with hash 1946598122, now seen corresponding path program 1 times [2021-11-23 03:14:29,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:29,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066141492] [2021-11-23 03:14:29,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:29,099 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:29,260 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:29,260 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:29,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066141492] [2021-11-23 03:14:29,260 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066141492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:29,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:29,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:14:29,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735607858] [2021-11-23 03:14:29,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:29,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:14:29,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:29,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:14:29,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:14:29,264 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) [2021-11-23 03:14:29,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:29,763 INFO L93 Difference]: Finished difference Result 538 states and 595 transitions. [2021-11-23 03:14:29,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:14:29,763 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 [2021-11-23 03:14:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:29,767 INFO L225 Difference]: With dead ends: 538 [2021-11-23 03:14:29,767 INFO L226 Difference]: Without dead ends: 538 [2021-11-23 03:14:29,768 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 [2021-11-23 03:14:29,769 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 [2021-11-23 03:14:29,769 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] [2021-11-23 03:14:29,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-23 03:14:29,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 256. [2021-11-23 03:14:29,779 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) [2021-11-23 03:14:29,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 300 transitions. [2021-11-23 03:14:29,781 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 300 transitions. Word has length 23 [2021-11-23 03:14:29,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:29,781 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 300 transitions. [2021-11-23 03:14:29,782 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) [2021-11-23 03:14:29,782 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 300 transitions. [2021-11-23 03:14:29,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 03:14:29,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:29,783 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] [2021-11-23 03:14:29,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-23 03:14:29,783 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)] === [2021-11-23 03:14:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:29,784 INFO L85 PathProgramCache]: Analyzing trace with hash -479719491, now seen corresponding path program 1 times [2021-11-23 03:14:29,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:29,784 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312913636] [2021-11-23 03:14:29,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:29,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:29,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:29,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:29,861 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:29,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312913636] [2021-11-23 03:14:29,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312913636] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:29,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:29,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:14:29,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736712321] [2021-11-23 03:14:29,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:29,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:14:29,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:29,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:14:29,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:14:29,863 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) [2021-11-23 03:14:30,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:30,347 INFO L93 Difference]: Finished difference Result 537 states and 593 transitions. [2021-11-23 03:14:30,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:14:30,348 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 [2021-11-23 03:14:30,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:30,352 INFO L225 Difference]: With dead ends: 537 [2021-11-23 03:14:30,352 INFO L226 Difference]: Without dead ends: 537 [2021-11-23 03:14:30,353 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 [2021-11-23 03:14:30,354 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 [2021-11-23 03:14:30,354 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] [2021-11-23 03:14:30,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2021-11-23 03:14:30,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 256. [2021-11-23 03:14:30,364 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) [2021-11-23 03:14:30,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 299 transitions. [2021-11-23 03:14:30,366 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 299 transitions. Word has length 23 [2021-11-23 03:14:30,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:30,367 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 299 transitions. [2021-11-23 03:14:30,367 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) [2021-11-23 03:14:30,367 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 299 transitions. [2021-11-23 03:14:30,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:14:30,368 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:30,369 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] [2021-11-23 03:14:30,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-11-23 03:14:30,369 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)] === [2021-11-23 03:14:30,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:30,370 INFO L85 PathProgramCache]: Analyzing trace with hash 214784498, now seen corresponding path program 1 times [2021-11-23 03:14:30,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:30,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119920475] [2021-11-23 03:14:30,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:30,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:30,490 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:30,491 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:30,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119920475] [2021-11-23 03:14:30,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119920475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:30,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:30,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:14:30,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639604063] [2021-11-23 03:14:30,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:30,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:14:30,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:30,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:14:30,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:14:30,494 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) [2021-11-23 03:14:31,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:31,287 INFO L93 Difference]: Finished difference Result 590 states and 661 transitions. [2021-11-23 03:14:31,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:14:31,287 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 [2021-11-23 03:14:31,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:31,292 INFO L225 Difference]: With dead ends: 590 [2021-11-23 03:14:31,292 INFO L226 Difference]: Without dead ends: 590 [2021-11-23 03:14:31,292 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 [2021-11-23 03:14:31,293 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 [2021-11-23 03:14:31,294 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] [2021-11-23 03:14:31,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-11-23 03:14:31,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 257. [2021-11-23 03:14:31,304 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) [2021-11-23 03:14:31,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 301 transitions. [2021-11-23 03:14:31,307 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 301 transitions. Word has length 24 [2021-11-23 03:14:31,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:31,307 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 301 transitions. [2021-11-23 03:14:31,307 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) [2021-11-23 03:14:31,307 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 301 transitions. [2021-11-23 03:14:31,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:14:31,309 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:31,309 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] [2021-11-23 03:14:31,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-11-23 03:14:31,309 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)] === [2021-11-23 03:14:31,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:31,310 INFO L85 PathProgramCache]: Analyzing trace with hash 214784499, now seen corresponding path program 1 times [2021-11-23 03:14:31,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:31,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067700891] [2021-11-23 03:14:31,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:31,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:31,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:31,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:31,458 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:31,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067700891] [2021-11-23 03:14:31,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067700891] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:31,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:31,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:14:31,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006478645] [2021-11-23 03:14:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:31,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:14:31,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:14:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:14:31,461 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) [2021-11-23 03:14:32,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:32,288 INFO L93 Difference]: Finished difference Result 595 states and 659 transitions. [2021-11-23 03:14:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:14:32,289 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 [2021-11-23 03:14:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:32,293 INFO L225 Difference]: With dead ends: 595 [2021-11-23 03:14:32,294 INFO L226 Difference]: Without dead ends: 595 [2021-11-23 03:14:32,294 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 [2021-11-23 03:14:32,295 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1061 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2021-11-23 03:14:32,295 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] [2021-11-23 03:14:32,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2021-11-23 03:14:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 257. [2021-11-23 03:14:32,306 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) [2021-11-23 03:14:32,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 300 transitions. [2021-11-23 03:14:32,309 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 300 transitions. Word has length 24 [2021-11-23 03:14:32,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:32,309 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 300 transitions. [2021-11-23 03:14:32,310 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) [2021-11-23 03:14:32,310 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 300 transitions. [2021-11-23 03:14:32,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:14:32,315 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:32,315 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] [2021-11-23 03:14:32,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-11-23 03:14:32,316 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)] === [2021-11-23 03:14:32,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:32,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692204, now seen corresponding path program 1 times [2021-11-23 03:14:32,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:32,317 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670203669] [2021-11-23 03:14:32,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:32,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:32,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:32,450 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:32,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670203669] [2021-11-23 03:14:32,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670203669] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:32,450 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:32,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-23 03:14:32,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160158576] [2021-11-23 03:14:32,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:32,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:14:32,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:14:32,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:14:32,453 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) [2021-11-23 03:14:33,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:33,272 INFO L93 Difference]: Finished difference Result 588 states and 659 transitions. [2021-11-23 03:14:33,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:14:33,273 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 [2021-11-23 03:14:33,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:33,277 INFO L225 Difference]: With dead ends: 588 [2021-11-23 03:14:33,277 INFO L226 Difference]: Without dead ends: 588 [2021-11-23 03:14:33,277 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 [2021-11-23 03:14:33,278 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 978 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:33,279 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 717 Invalid, 777 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:14:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2021-11-23 03:14:33,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 257. [2021-11-23 03:14:33,290 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) [2021-11-23 03:14:33,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 299 transitions. [2021-11-23 03:14:33,292 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 299 transitions. Word has length 24 [2021-11-23 03:14:33,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:33,293 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 299 transitions. [2021-11-23 03:14:33,293 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) [2021-11-23 03:14:33,293 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 299 transitions. [2021-11-23 03:14:33,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 03:14:33,294 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:33,294 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] [2021-11-23 03:14:33,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-11-23 03:14:33,295 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)] === [2021-11-23 03:14:33,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:33,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1986692203, now seen corresponding path program 1 times [2021-11-23 03:14:33,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:33,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424337892] [2021-11-23 03:14:33,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:33,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:33,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:33,429 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:33,430 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:33,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424337892] [2021-11-23 03:14:33,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424337892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:33,431 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:33,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:14:33,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7113259] [2021-11-23 03:14:33,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:33,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:14:33,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:33,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:14:33,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:14:33,433 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) [2021-11-23 03:14:34,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:34,239 INFO L93 Difference]: Finished difference Result 593 states and 657 transitions. [2021-11-23 03:14:34,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:14:34,240 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 [2021-11-23 03:14:34,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:34,244 INFO L225 Difference]: With dead ends: 593 [2021-11-23 03:14:34,244 INFO L226 Difference]: Without dead ends: 593 [2021-11-23 03:14:34,244 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 [2021-11-23 03:14:34,245 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 1053 mSDsluCounter, 542 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:34,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1053 Valid, 670 Invalid, 635 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:14:34,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-11-23 03:14:34,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 257. [2021-11-23 03:14:34,256 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) [2021-11-23 03:14:34,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 257 states and 298 transitions. [2021-11-23 03:14:34,258 INFO L78 Accepts]: Start accepts. Automaton has 257 states and 298 transitions. Word has length 24 [2021-11-23 03:14:34,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:34,258 INFO L470 AbstractCegarLoop]: Abstraction has 257 states and 298 transitions. [2021-11-23 03:14:34,259 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) [2021-11-23 03:14:34,259 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 298 transitions. [2021-11-23 03:14:34,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:14:34,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:34,260 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] [2021-11-23 03:14:34,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-11-23 03:14:34,261 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)] === [2021-11-23 03:14:34,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:34,261 INFO L85 PathProgramCache]: Analyzing trace with hash -856061257, now seen corresponding path program 1 times [2021-11-23 03:14:34,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:34,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962111833] [2021-11-23 03:14:34,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:34,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:34,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:34,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:34,449 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:34,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962111833] [2021-11-23 03:14:34,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962111833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:34,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:34,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:14:34,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356754032] [2021-11-23 03:14:34,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:34,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:14:34,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:34,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:14:34,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:14:34,451 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) [2021-11-23 03:14:35,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:35,571 INFO L93 Difference]: Finished difference Result 532 states and 587 transitions. [2021-11-23 03:14:35,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:14:35,571 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 [2021-11-23 03:14:35,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:35,575 INFO L225 Difference]: With dead ends: 532 [2021-11-23 03:14:35,575 INFO L226 Difference]: Without dead ends: 532 [2021-11-23 03:14:35,576 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 [2021-11-23 03:14:35,576 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1082 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:14:35,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1082 Valid, 1103 Invalid, 690 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:14:35,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2021-11-23 03:14:35,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 258. [2021-11-23 03:14:35,590 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) [2021-11-23 03:14:35,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 299 transitions. [2021-11-23 03:14:35,592 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 299 transitions. Word has length 27 [2021-11-23 03:14:35,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:35,593 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 299 transitions. [2021-11-23 03:14:35,594 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) [2021-11-23 03:14:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 299 transitions. [2021-11-23 03:14:35,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-23 03:14:35,596 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:35,596 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] [2021-11-23 03:14:35,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-11-23 03:14:35,597 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)] === [2021-11-23 03:14:35,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:35,597 INFO L85 PathProgramCache]: Analyzing trace with hash -897960630, now seen corresponding path program 1 times [2021-11-23 03:14:35,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:35,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729823865] [2021-11-23 03:14:35,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:35,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:35,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:35,827 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:35,828 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:35,828 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729823865] [2021-11-23 03:14:35,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729823865] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:14:35,828 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:14:35,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:14:35,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360294164] [2021-11-23 03:14:35,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:14:35,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:14:35,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:14:35,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:14:35,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:14:35,830 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) [2021-11-23 03:14:37,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:14:37,025 INFO L93 Difference]: Finished difference Result 531 states and 585 transitions. [2021-11-23 03:14:37,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-23 03:14:37,026 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 [2021-11-23 03:14:37,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:14:37,030 INFO L225 Difference]: With dead ends: 531 [2021-11-23 03:14:37,030 INFO L226 Difference]: Without dead ends: 531 [2021-11-23 03:14:37,030 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 [2021-11-23 03:14:37,031 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 1078 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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 [2021-11-23 03:14:37,031 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] [2021-11-23 03:14:37,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2021-11-23 03:14:37,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 258. [2021-11-23 03:14:37,044 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) [2021-11-23 03:14:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 298 transitions. [2021-11-23 03:14:37,046 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 298 transitions. Word has length 27 [2021-11-23 03:14:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:14:37,047 INFO L470 AbstractCegarLoop]: Abstraction has 258 states and 298 transitions. [2021-11-23 03:14:37,047 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) [2021-11-23 03:14:37,047 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 298 transitions. [2021-11-23 03:14:37,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-23 03:14:37,048 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:14:37,048 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] [2021-11-23 03:14:37,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-11-23 03:14:37,049 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)] === [2021-11-23 03:14:37,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:14:37,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2067233019, now seen corresponding path program 1 times [2021-11-23 03:14:37,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:14:37,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277489793] [2021-11-23 03:14:37,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:37,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:14:37,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:37,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:37,276 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:14:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277489793] [2021-11-23 03:14:37,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277489793] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:14:37,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674641839] [2021-11-23 03:14:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:14:37,277 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:14:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:14:37,285 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:14:37,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:14:37,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:14:37,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 26 conjunts are in the unsatisfiable core [2021-11-23 03:14:37,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:14:37,538 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 [2021-11-23 03:14:37,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:14:37,693 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 [2021-11-23 03:14:37,699 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 [2021-11-23 03:14:37,739 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:37,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:14:38,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:14:38,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674641839] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:14:38,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1931771072] [2021-11-23 03:14:38,073 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 03:14:38,074 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:14:38,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:14:38,086 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:14:38,086 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:14:38,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,213 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 [2021-11-23 03:14:38,253 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 [2021-11-23 03:14:38,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,265 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 [2021-11-23 03:14:38,281 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 [2021-11-23 03:14:38,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,333 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 [2021-11-23 03:14:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,349 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 [2021-11-23 03:14:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,368 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 [2021-11-23 03:14:38,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,389 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 [2021-11-23 03:14:38,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,429 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 [2021-11-23 03:14:38,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,451 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 [2021-11-23 03:14:38,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,472 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 [2021-11-23 03:14:38,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,523 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 [2021-11-23 03:14:38,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,543 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 [2021-11-23 03:14:38,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,565 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 [2021-11-23 03:14:38,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,655 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 38 treesize of output 47 [2021-11-23 03:14:38,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,764 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:14:38,765 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 [2021-11-23 03:14:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,792 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:14:38,793 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 [2021-11-23 03:14:38,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,841 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:14:38,842 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 [2021-11-23 03:14:38,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:38,976 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:38,998 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-23 03:14:38,999 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 [2021-11-23 03:14:39,124 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:14:39,125 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 [2021-11-23 03:14:39,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,173 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-23 03:14:39,174 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 [2021-11-23 03:14:39,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,195 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,214 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:14:39,215 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 [2021-11-23 03:14:39,325 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:14:39,325 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 [2021-11-23 03:14:39,395 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:14:39,396 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 [2021-11-23 03:14:39,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,423 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,429 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:14:39,432 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 [2021-11-23 03:14:39,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,616 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,617 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,618 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,654 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-23 03:14:39,655 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 521 treesize of output 483 [2021-11-23 03:14:39,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,688 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,724 INFO L354 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2021-11-23 03:14:39,725 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 646 treesize of output 649 [2021-11-23 03:14:39,762 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,765 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:39,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:39,811 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-23 03:14:39,812 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 657 treesize of output 624 [2021-11-23 03:14:40,583 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-23 03:14:40,584 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 1252 treesize of output 1233 [2021-11-23 03:14:41,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:41,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:41,992 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:41,994 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:42,096 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:14:42,097 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 2177 treesize of output 1332 [2021-11-23 03:14:42,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:42,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:42,149 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:42,151 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:42,271 INFO L354 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2021-11-23 03:14:42,272 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 6 new quantified variables, introduced 18 case distinctions, treesize of input 2162 treesize of output 2020 [2021-11-23 03:14:42,342 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-23 03:14:42,343 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 2147 treesize of output 2002 [2021-11-23 03:14:43,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:43,552 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:43,553 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:43,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:43,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:43,627 INFO L354 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2021-11-23 03:14:43,628 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 23 case distinctions, treesize of input 3370 treesize of output 2023 [2021-11-23 03:14:43,903 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-23 03:14:43,904 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 3351 treesize of output 3229 [2021-11-23 03:14:43,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:43,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:43,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:43,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:43,985 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:44,050 INFO L354 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2021-11-23 03:14:44,051 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 7 new quantified variables, introduced 23 case distinctions, treesize of input 3343 treesize of output 3081 [2021-11-23 03:14:44,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,110 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:44,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:44,163 INFO L354 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2021-11-23 03:14:44,164 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 3324 treesize of output 3132 [2021-11-23 03:14:48,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,145 INFO L354 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2021-11-23 03:14:49,146 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 25 case distinctions, treesize of input 8579 treesize of output 5073 [2021-11-23 03:14:49,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,228 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,359 INFO L354 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2021-11-23 03:14:49,360 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 7 new quantified variables, introduced 25 case distinctions, treesize of input 8550 treesize of output 7887 [2021-11-23 03:14:49,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:49,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:14:49,479 INFO L354 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2021-11-23 03:14:49,480 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 10 case distinctions, treesize of input 8479 treesize of output 7919 [2021-11-23 03:14:53,042 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 [2021-11-23 03:14:53,048 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 [2021-11-23 03:14:53,054 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 [2021-11-23 03:14:53,083 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:14:53,083 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 [2021-11-23 03:14:53,123 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:14:53,124 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 [2021-11-23 03:14:53,143 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 [2021-11-23 03:14:53,151 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 [2021-11-23 03:14:53,158 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 [2021-11-23 03:14:53,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:53,193 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 [2021-11-23 03:14:53,225 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-23 03:14:53,225 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 [2021-11-23 03:14:53,240 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 [2021-11-23 03:14:53,281 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:14:53,281 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 [2021-11-23 03:14:53,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:53,300 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 34 treesize of output 21 [2021-11-23 03:14:53,329 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 [2021-11-23 03:14:53,342 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 [2021-11-23 03:14:53,357 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 26 treesize of output 28 [2021-11-23 03:14:53,373 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 [2021-11-23 03:14:53,385 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 [2021-11-23 03:14:53,392 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 [2021-11-23 03:14:58,097 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:14:58,097 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 219 treesize of output 239 [2021-11-23 03:14:58,319 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:14:58,319 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 [2021-11-23 03:14:58,379 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:14:58,379 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 167 treesize of output 176 [2021-11-23 03:14:58,401 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:14:58,401 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 176 treesize of output 171 [2021-11-23 03:14:58,483 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 [2021-11-23 03:14:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:58,523 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 [2021-11-23 03:14:58,652 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:14:58,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 312 treesize of output 329 [2021-11-23 03:14:58,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:58,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:58,678 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 321 treesize of output 315 [2021-11-23 03:14:58,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:14:58,728 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:14:58,729 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 320 treesize of output 315 [2021-11-23 03:14:59,385 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:14:59,386 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 [2021-11-23 03:14:59,427 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:14:59,428 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 1 [2021-11-23 03:14:59,468 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:14:59,469 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 1 [2021-11-23 03:14:59,530 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:15:01,604 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '14633#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2021-11-23 03:15:01,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:15:01,604 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:15:01,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 14 [2021-11-23 03:15:01,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366870790] [2021-11-23 03:15:01,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:15:01,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-23 03:15:01,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:01,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-23 03:15:01,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=932, Unknown=0, NotChecked=0, Total=1056 [2021-11-23 03:15:01,609 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) [2021-11-23 03:15:02,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:02,213 INFO L93 Difference]: Finished difference Result 430 states and 487 transitions. [2021-11-23 03:15:02,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:15:02,214 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 [2021-11-23 03:15:02,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:02,217 INFO L225 Difference]: With dead ends: 430 [2021-11-23 03:15:02,217 INFO L226 Difference]: Without dead ends: 430 [2021-11-23 03:15:02,218 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 57 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=138, Invalid=1052, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 03:15:02,219 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 261 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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 [2021-11-23 03:15:02,220 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] [2021-11-23 03:15:02,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2021-11-23 03:15:02,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 269. [2021-11-23 03:15:02,229 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) [2021-11-23 03:15:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 310 transitions. [2021-11-23 03:15:02,231 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 310 transitions. Word has length 28 [2021-11-23 03:15:02,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:02,231 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 310 transitions. [2021-11-23 03:15:02,231 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) [2021-11-23 03:15:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 310 transitions. [2021-11-23 03:15:02,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:15:02,233 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:02,233 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] [2021-11-23 03:15:02,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:15:02,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-11-23 03:15:02,457 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)] === [2021-11-23 03:15:02,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:02,457 INFO L85 PathProgramCache]: Analyzing trace with hash -260397027, now seen corresponding path program 1 times [2021-11-23 03:15:02,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:02,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633119739] [2021-11-23 03:15:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:02,458 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:02,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:02,552 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:02,552 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:02,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633119739] [2021-11-23 03:15:02,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633119739] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:02,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:02,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:15:02,553 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643198386] [2021-11-23 03:15:02,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:02,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:15:02,554 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:02,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:15:02,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:15:02,556 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) [2021-11-23 03:15:02,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:02,941 INFO L93 Difference]: Finished difference Result 441 states and 486 transitions. [2021-11-23 03:15:02,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:15:02,942 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 [2021-11-23 03:15:02,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:02,945 INFO L225 Difference]: With dead ends: 441 [2021-11-23 03:15:02,945 INFO L226 Difference]: Without dead ends: 441 [2021-11-23 03:15:02,945 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 [2021-11-23 03:15:02,946 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:15:02,947 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [428 Valid, 478 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 413 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:15:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2021-11-23 03:15:02,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 274. [2021-11-23 03:15:02,955 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) [2021-11-23 03:15:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 320 transitions. [2021-11-23 03:15:02,957 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 320 transitions. Word has length 31 [2021-11-23 03:15:02,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:02,957 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 320 transitions. [2021-11-23 03:15:02,958 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) [2021-11-23 03:15:02,958 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 320 transitions. [2021-11-23 03:15:02,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:15:02,958 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:02,959 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] [2021-11-23 03:15:02,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-11-23 03:15:02,959 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)] === [2021-11-23 03:15:02,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:02,960 INFO L85 PathProgramCache]: Analyzing trace with hash -260397028, now seen corresponding path program 1 times [2021-11-23 03:15:02,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:02,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673667716] [2021-11-23 03:15:02,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:02,961 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:02,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:02,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:15:02,992 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:02,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673667716] [2021-11-23 03:15:02,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673667716] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:02,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:02,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:15:02,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707100175] [2021-11-23 03:15:02,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:02,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:15:02,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:02,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:15:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:15:02,995 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) [2021-11-23 03:15:03,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:03,313 INFO L93 Difference]: Finished difference Result 372 states and 430 transitions. [2021-11-23 03:15:03,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:15:03,314 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 [2021-11-23 03:15:03,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:03,316 INFO L225 Difference]: With dead ends: 372 [2021-11-23 03:15:03,316 INFO L226 Difference]: Without dead ends: 372 [2021-11-23 03:15:03,317 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 [2021-11-23 03:15:03,317 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 [2021-11-23 03:15:03,318 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] [2021-11-23 03:15:03,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-23 03:15:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 274. [2021-11-23 03:15:03,325 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) [2021-11-23 03:15:03,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 319 transitions. [2021-11-23 03:15:03,327 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 319 transitions. Word has length 31 [2021-11-23 03:15:03,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:03,328 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 319 transitions. [2021-11-23 03:15:03,328 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) [2021-11-23 03:15:03,328 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 319 transitions. [2021-11-23 03:15:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 03:15:03,329 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:03,329 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] [2021-11-23 03:15:03,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-11-23 03:15:03,329 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)] === [2021-11-23 03:15:03,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1131391516, now seen corresponding path program 1 times [2021-11-23 03:15:03,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:03,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409606962] [2021-11-23 03:15:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:03,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:03,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:03,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409606962] [2021-11-23 03:15:03,380 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409606962] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:03,380 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:03,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:15:03,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501880114] [2021-11-23 03:15:03,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:03,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:15:03,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:15:03,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:15:03,382 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) [2021-11-23 03:15:03,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:03,601 INFO L93 Difference]: Finished difference Result 371 states and 412 transitions. [2021-11-23 03:15:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:15:03,602 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 [2021-11-23 03:15:03,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:03,604 INFO L225 Difference]: With dead ends: 371 [2021-11-23 03:15:03,604 INFO L226 Difference]: Without dead ends: 371 [2021-11-23 03:15:03,605 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 [2021-11-23 03:15:03,605 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 710 mSDsluCounter, 567 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 [2021-11-23 03:15:03,606 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] [2021-11-23 03:15:03,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2021-11-23 03:15:03,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 274. [2021-11-23 03:15:03,613 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) [2021-11-23 03:15:03,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 318 transitions. [2021-11-23 03:15:03,615 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 318 transitions. Word has length 33 [2021-11-23 03:15:03,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:03,616 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 318 transitions. [2021-11-23 03:15:03,616 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) [2021-11-23 03:15:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 318 transitions. [2021-11-23 03:15:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-23 03:15:03,617 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:03,617 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] [2021-11-23 03:15:03,617 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-11-23 03:15:03,617 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)] === [2021-11-23 03:15:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:03,618 INFO L85 PathProgramCache]: Analyzing trace with hash 517949580, now seen corresponding path program 1 times [2021-11-23 03:15:03,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:03,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600559887] [2021-11-23 03:15:03,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:03,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:03,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:03,667 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:03,667 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:03,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600559887] [2021-11-23 03:15:03,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600559887] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:03,668 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:03,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:15:03,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144668623] [2021-11-23 03:15:03,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:03,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:15:03,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:03,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:15:03,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-23 03:15:03,670 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) [2021-11-23 03:15:03,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:03,922 INFO L93 Difference]: Finished difference Result 480 states and 533 transitions. [2021-11-23 03:15:03,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:15:03,923 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 [2021-11-23 03:15:03,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:03,926 INFO L225 Difference]: With dead ends: 480 [2021-11-23 03:15:03,926 INFO L226 Difference]: Without dead ends: 480 [2021-11-23 03:15:03,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-11-23 03:15:03,927 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 [2021-11-23 03:15:03,928 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] [2021-11-23 03:15:03,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-11-23 03:15:03,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 274. [2021-11-23 03:15:03,935 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) [2021-11-23 03:15:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 317 transitions. [2021-11-23 03:15:03,937 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 317 transitions. Word has length 32 [2021-11-23 03:15:03,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:03,937 INFO L470 AbstractCegarLoop]: Abstraction has 274 states and 317 transitions. [2021-11-23 03:15:03,938 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) [2021-11-23 03:15:03,938 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 317 transitions. [2021-11-23 03:15:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 03:15:03,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:03,939 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] [2021-11-23 03:15:03,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-11-23 03:15:03,939 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)] === [2021-11-23 03:15:03,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:03,940 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392727, now seen corresponding path program 1 times [2021-11-23 03:15:03,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:03,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403149384] [2021-11-23 03:15:03,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:03,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:03,973 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:15:03,973 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:03,973 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403149384] [2021-11-23 03:15:03,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403149384] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:03,973 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:03,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:15:03,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255364018] [2021-11-23 03:15:03,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:03,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:15:03,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:03,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:15:03,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:15:03,975 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) [2021-11-23 03:15:04,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:04,187 INFO L93 Difference]: Finished difference Result 323 states and 370 transitions. [2021-11-23 03:15:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:15:04,189 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 [2021-11-23 03:15:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:04,191 INFO L225 Difference]: With dead ends: 323 [2021-11-23 03:15:04,192 INFO L226 Difference]: Without dead ends: 323 [2021-11-23 03:15:04,192 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 [2021-11-23 03:15:04,193 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, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:15:04,193 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 295 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 261 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:15:04,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-23 03:15:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 271. [2021-11-23 03:15:04,201 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) [2021-11-23 03:15:04,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2021-11-23 03:15:04,203 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 33 [2021-11-23 03:15:04,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:04,203 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2021-11-23 03:15:04,203 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) [2021-11-23 03:15:04,204 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2021-11-23 03:15:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-23 03:15:04,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:04,204 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] [2021-11-23 03:15:04,205 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-11-23 03:15:04,205 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)] === [2021-11-23 03:15:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:04,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1131392726, now seen corresponding path program 1 times [2021-11-23 03:15:04,206 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:04,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500689318] [2021-11-23 03:15:04,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:04,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:04,266 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:04,267 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:04,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1500689318] [2021-11-23 03:15:04,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1500689318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:15:04,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:15:04,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:15:04,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894938585] [2021-11-23 03:15:04,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:15:04,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-23 03:15:04,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:04,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-23 03:15:04,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:15:04,270 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) [2021-11-23 03:15:04,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:04,633 INFO L93 Difference]: Finished difference Result 365 states and 404 transitions. [2021-11-23 03:15:04,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:15:04,634 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 [2021-11-23 03:15:04,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:04,636 INFO L225 Difference]: With dead ends: 365 [2021-11-23 03:15:04,636 INFO L226 Difference]: Without dead ends: 365 [2021-11-23 03:15:04,636 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 [2021-11-23 03:15:04,637 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, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:15:04,637 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 426 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:15:04,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-23 03:15:04,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 271. [2021-11-23 03:15:04,642 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) [2021-11-23 03:15:04,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 308 transitions. [2021-11-23 03:15:04,644 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 308 transitions. Word has length 33 [2021-11-23 03:15:04,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:04,645 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 308 transitions. [2021-11-23 03:15:04,645 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) [2021-11-23 03:15:04,645 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 308 transitions. [2021-11-23 03:15:04,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:15:04,645 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:04,646 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] [2021-11-23 03:15:04,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-11-23 03:15:04,646 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)] === [2021-11-23 03:15:04,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:04,646 INFO L85 PathProgramCache]: Analyzing trace with hash -100268176, now seen corresponding path program 2 times [2021-11-23 03:15:04,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:04,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224320637] [2021-11-23 03:15:04,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:04,647 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:04,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:04,900 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:04,900 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:04,900 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224320637] [2021-11-23 03:15:04,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224320637] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:15:04,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760305426] [2021-11-23 03:15:04,901 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:15:04,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:15:04,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:15:04,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:15:04,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:15:05,049 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-23 03:15:05,049 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:15:05,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 33 conjunts are in the unsatisfiable core [2021-11-23 03:15:05,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:15:05,073 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 [2021-11-23 03:15:05,106 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 03:15:05,107 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 [2021-11-23 03:15:05,159 INFO L354 Elim1Store]: treesize reduction 36, result has 23.4 percent of original size [2021-11-23 03:15:05,160 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 [2021-11-23 03:15:05,203 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 [2021-11-23 03:15:05,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:05,249 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 [2021-11-23 03:15:05,576 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:15:05,576 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 [2021-11-23 03:15:05,593 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:05,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:15:05,882 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 [2021-11-23 03:15:05,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:05,973 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:05,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760305426] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:15:05,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [735169648] [2021-11-23 03:15:05,977 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 03:15:05,977 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:15:05,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:15:05,978 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:15:05,978 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:15:06,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,017 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 [2021-11-23 03:15:06,035 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 [2021-11-23 03:15:06,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,044 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 [2021-11-23 03:15:06,053 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 [2021-11-23 03:15:06,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,079 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 [2021-11-23 03:15:06,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,090 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 [2021-11-23 03:15:06,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,099 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 [2021-11-23 03:15:06,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,108 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 [2021-11-23 03:15:06,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,129 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 [2021-11-23 03:15:06,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,140 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 [2021-11-23 03:15:06,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,153 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 [2021-11-23 03:15:06,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,179 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 [2021-11-23 03:15:06,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,192 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 [2021-11-23 03:15:06,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,205 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 [2021-11-23 03:15:06,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,257 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 38 treesize of output 47 [2021-11-23 03:15:06,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,329 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:15:06,330 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 [2021-11-23 03:15:06,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,370 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:15:06,371 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 [2021-11-23 03:15:06,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,386 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:15:06,386 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 [2021-11-23 03:15:06,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,446 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,470 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-23 03:15:06,471 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 [2021-11-23 03:15:06,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,500 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,516 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:15:06,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-23 03:15:06,614 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:15:06,615 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 [2021-11-23 03:15:06,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,629 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,646 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-23 03:15:06,646 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 257 treesize of output 250 [2021-11-23 03:15:06,748 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:15:06,749 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 [2021-11-23 03:15:06,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,770 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,779 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:15:06,779 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 [2021-11-23 03:15:06,838 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:15:06,838 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 [2021-11-23 03:15:06,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,936 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,938 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,965 INFO L354 Elim1Store]: treesize reduction 77, result has 8.3 percent of original size [2021-11-23 03:15:06,966 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 [2021-11-23 03:15:06,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:06,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,987 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:06,988 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:07,014 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-23 03:15:07,014 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 [2021-11-23 03:15:07,028 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:07,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:07,030 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:07,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:07,065 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-23 03:15:07,066 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 7 case distinctions, treesize of input 650 treesize of output 617 [2021-11-23 03:15:07,586 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-23 03:15:07,586 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 1238 treesize of output 1223 [2021-11-23 03:15:08,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:08,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:08,717 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:08,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:08,839 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:15:08,839 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 2884 treesize of output 1743 [2021-11-23 03:15:08,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:08,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:08,877 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:08,878 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:08,945 INFO L354 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2021-11-23 03:15:08,945 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 6 new quantified variables, introduced 18 case distinctions, treesize of input 2855 treesize of output 2643 [2021-11-23 03:15:08,995 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-23 03:15:08,995 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 2826 treesize of output 2605 [2021-11-23 03:15:10,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,234 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,235 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,237 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,325 INFO L354 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2021-11-23 03:15:10,326 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 23 case distinctions, treesize of input 6104 treesize of output 3639 [2021-11-23 03:15:10,666 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-23 03:15:10,666 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 6085 treesize of output 5811 [2021-11-23 03:15:10,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,730 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,787 INFO L354 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2021-11-23 03:15:10,788 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 6046 treesize of output 5578 [2021-11-23 03:15:10,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,850 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:10,852 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:10,913 INFO L354 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2021-11-23 03:15:10,914 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 7 new quantified variables, introduced 23 case distinctions, treesize of input 5964 treesize of output 5450 [2021-11-23 03:15:20,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:20,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:20,710 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:20,711 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:20,926 INFO L354 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2021-11-23 03:15:20,927 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 25 case distinctions, treesize of input 21367 treesize of output 12509 [2021-11-23 03:15:21,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:21,116 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:21,142 INFO L354 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2021-11-23 03:15:21,142 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 10 case distinctions, treesize of input 21310 treesize of output 19818 [2021-11-23 03:15:21,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:21,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:21,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:21,400 INFO L354 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2021-11-23 03:15:21,401 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 7 new quantified variables, introduced 25 case distinctions, treesize of input 21295 treesize of output 19490 [2021-11-23 03:15:29,261 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 [2021-11-23 03:15:29,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:15:29,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:15:29,313 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:15:29,314 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 [2021-11-23 03:15:29,323 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 [2021-11-23 03:15:29,343 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 [2021-11-23 03:15:29,353 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 [2021-11-23 03:15:29,363 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 [2021-11-23 03:15:29,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:29,384 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 [2021-11-23 03:15:29,419 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-23 03:15:29,419 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 [2021-11-23 03:15:29,459 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:15:29,459 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 [2021-11-23 03:15:29,479 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 [2021-11-23 03:15:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:29,489 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 [2021-11-23 03:15:29,512 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 [2021-11-23 03:15:29,524 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 [2021-11-23 03:15:29,532 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 [2021-11-23 03:15:29,550 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 [2021-11-23 03:15:29,556 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 [2021-11-23 03:15:29,561 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 [2021-11-23 03:15:33,081 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:15:33,081 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 [2021-11-23 03:15:34,049 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:15:34,050 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 [2021-11-23 03:15:34,094 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:15:34,094 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 1 [2021-11-23 03:15:34,119 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:15:34,184 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:15:34,220 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:15:34,220 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 1 [2021-11-23 03:15:34,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:34,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:15:34,284 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:15:34,531 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:15:34,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 663 treesize of output 610 [2021-11-23 03:15:34,569 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:15:34,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 631 treesize of output 622 [2021-11-23 03:15:34,851 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 [2021-11-23 03:15:34,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:34,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:34,939 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 719 treesize of output 681 [2021-11-23 03:15:35,027 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:15:35,028 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 718 treesize of output 725 [2021-11-23 03:15:35,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:35,084 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:15:35,084 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 717 treesize of output 694 [2021-11-23 03:15:36,679 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:15:36,680 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 [2021-11-23 03:15:36,954 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:15:36,954 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 1 [2021-11-23 03:15:36,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:36,983 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:15:37,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:37,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:37,210 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:15:37,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:15:37,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:37,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:37,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:15:37,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:37,513 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 [2021-11-23 03:15:37,557 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:15:40,203 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19633#(and (<= 0 |#NULL.base|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2021-11-23 03:15:40,203 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:15:40,204 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:15:40,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10, 12] total 26 [2021-11-23 03:15:40,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270523936] [2021-11-23 03:15:40,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:15:40,204 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-23 03:15:40,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:15:40,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-23 03:15:40,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=1751, Unknown=0, NotChecked=0, Total=1980 [2021-11-23 03:15:40,207 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) [2021-11-23 03:15:41,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:15:41,994 INFO L93 Difference]: Finished difference Result 568 states and 646 transitions. [2021-11-23 03:15:41,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-23 03:15:41,995 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 [2021-11-23 03:15:41,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:15:41,998 INFO L225 Difference]: With dead ends: 568 [2021-11-23 03:15:41,999 INFO L226 Difference]: Without dead ends: 568 [2021-11-23 03:15:42,001 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 66 SyntacticMatches, 6 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 959 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=513, Invalid=2909, Unknown=0, NotChecked=0, Total=3422 [2021-11-23 03:15:42,002 INFO L933 BasicCegarLoop]: 204 mSDtfsCounter, 1900 mSDsluCounter, 1746 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:15:42,002 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1902 Valid, 1902 Invalid, 2314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-23 03:15:42,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2021-11-23 03:15:42,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 272. [2021-11-23 03:15:42,011 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) [2021-11-23 03:15:42,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 310 transitions. [2021-11-23 03:15:42,012 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 310 transitions. Word has length 34 [2021-11-23 03:15:42,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:15:42,013 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 310 transitions. [2021-11-23 03:15:42,013 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) [2021-11-23 03:15:42,013 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 310 transitions. [2021-11-23 03:15:42,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:15:42,014 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:15:42,014 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] [2021-11-23 03:15:42,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:15:42,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:15:42,240 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)] === [2021-11-23 03:15:42,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:15:42,241 INFO L85 PathProgramCache]: Analyzing trace with hash -100268175, now seen corresponding path program 1 times [2021-11-23 03:15:42,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:15:42,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117695917] [2021-11-23 03:15:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:42,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:15:42,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:42,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:42,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:15:42,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117695917] [2021-11-23 03:15:42,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117695917] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:15:42,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450771350] [2021-11-23 03:15:42,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:15:42,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:15:42,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:15:42,641 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:15:42,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:15:42,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:15:42,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 44 conjunts are in the unsatisfiable core [2021-11-23 03:15:42,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:15:42,740 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 [2021-11-23 03:15:42,822 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:15:42,822 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 [2021-11-23 03:15:42,833 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 [2021-11-23 03:15:42,912 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-23 03:15:42,912 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 [2021-11-23 03:15:42,920 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 [2021-11-23 03:15:42,968 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 [2021-11-23 03:15:43,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:43,028 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 [2021-11-23 03:15:43,043 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 [2021-11-23 03:15:43,591 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 [2021-11-23 03:15:43,595 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:15:43,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 34 [2021-11-23 03:15:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:43,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:15:44,256 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 [2021-11-23 03:15:44,655 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:15:44,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450771350] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:15:44,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [878409876] [2021-11-23 03:15:44,660 INFO L159 IcfgInterpreter]: Started Sifa with 26 locations of interest [2021-11-23 03:15:44,660 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:15:44,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:15:44,661 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:15:44,661 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:15:44,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,708 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 [2021-11-23 03:15:44,736 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 [2021-11-23 03:15:44,743 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 [2021-11-23 03:15:44,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-23 03:15:44,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,783 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 [2021-11-23 03:15:44,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,795 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 [2021-11-23 03:15:44,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,805 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 [2021-11-23 03:15:44,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,816 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 [2021-11-23 03:15:44,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,843 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 [2021-11-23 03:15:44,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,858 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 [2021-11-23 03:15:44,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,870 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 [2021-11-23 03:15:44,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,906 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 [2021-11-23 03:15:44,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,921 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 [2021-11-23 03:15:44,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,936 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 [2021-11-23 03:15:44,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:44,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,001 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 38 treesize of output 47 [2021-11-23 03:15:45,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,072 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:15:45,072 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 [2021-11-23 03:15:45,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,093 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:15:45,093 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 [2021-11-23 03:15:45,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,128 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:15:45,128 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 [2021-11-23 03:15:45,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,180 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,209 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-23 03:15:45,210 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 296 treesize of output 248 [2021-11-23 03:15:45,317 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:15:45,318 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 277 treesize of output 287 [2021-11-23 03:15:45,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,343 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:15:45,343 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 269 treesize of output 266 [2021-11-23 03:15:45,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,354 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,368 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-23 03:15:45,369 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 268 treesize of output 261 [2021-11-23 03:15:45,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,454 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:15:45,454 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 [2021-11-23 03:15:45,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,500 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:15:45,500 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 [2021-11-23 03:15:45,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,537 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,541 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:15:45,541 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 [2021-11-23 03:15:45,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,611 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,612 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,657 INFO L354 Elim1Store]: treesize reduction 174, result has 8.9 percent of original size [2021-11-23 03:15:45,658 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 525 treesize of output 487 [2021-11-23 03:15:45,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,673 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,720 INFO L354 Elim1Store]: treesize reduction 286, result has 9.2 percent of original size [2021-11-23 03:15:45,721 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 656 treesize of output 659 [2021-11-23 03:15:45,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,745 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:45,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:45,786 INFO L354 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2021-11-23 03:15:45,787 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 763 treesize of output 730 [2021-11-23 03:15:46,148 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-23 03:15:46,149 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 1458 treesize of output 1427 [2021-11-23 03:15:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:47,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:47,125 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:47,269 INFO L354 Elim1Store]: treesize reduction 336, result has 13.8 percent of original size [2021-11-23 03:15:47,270 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 3342 treesize of output 1865 [2021-11-23 03:15:47,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:47,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:47,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:47,468 INFO L354 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2021-11-23 03:15:47,468 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 3301 treesize of output 2704 [2021-11-23 03:15:47,532 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-23 03:15:47,533 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 3260 treesize of output 3021 [2021-11-23 03:15:48,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:48,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,607 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:48,738 INFO L354 Elim1Store]: treesize reduction 398, result has 8.7 percent of original size [2021-11-23 03:15:48,738 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 6303 treesize of output 3464 [2021-11-23 03:15:48,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,789 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:48,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,846 INFO L354 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2021-11-23 03:15:48,847 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 6284 treesize of output 5828 [2021-11-23 03:15:48,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,895 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:48,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:48,897 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:49,000 INFO L354 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2021-11-23 03:15:49,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 10 new quantified variables, introduced 24 case distinctions, treesize of input 6166 treesize of output 5049 [2021-11-23 03:15:49,274 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-23 03:15:49,274 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 6147 treesize of output 5841 [2021-11-23 03:15:56,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:56,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:56,648 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:56,956 INFO L354 Elim1Store]: treesize reduction 414, result has 12.8 percent of original size [2021-11-23 03:15:56,957 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 21019 treesize of output 11355 [2021-11-23 03:15:57,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:57,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:57,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:57,269 INFO L354 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2021-11-23 03:15:57,269 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 20778 treesize of output 17036 [2021-11-23 03:15:57,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:15:57,433 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:15:57,468 INFO L354 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2021-11-23 03:15:57,469 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 10 case distinctions, treesize of input 20737 treesize of output 19359 [2021-11-23 03:16:03,241 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 [2021-11-23 03:16:03,247 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 [2021-11-23 03:16:03,253 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 [2021-11-23 03:16:03,285 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:03,285 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 [2021-11-23 03:16:03,292 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 [2021-11-23 03:16:03,309 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 30 treesize of output 23 [2021-11-23 03:16:03,317 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 [2021-11-23 03:16:03,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:16:03,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:03,343 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 [2021-11-23 03:16:03,347 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 [2021-11-23 03:16:03,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:03,355 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 [2021-11-23 03:16:03,379 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-23 03:16:03,379 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 [2021-11-23 03:16:03,413 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:03,413 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 [2021-11-23 03:16:03,429 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 [2021-11-23 03:16:03,437 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 [2021-11-23 03:16:03,444 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 [2021-11-23 03:16:03,461 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 [2021-11-23 03:16:03,466 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 [2021-11-23 03:16:03,471 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 [2021-11-23 03:16:06,785 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:16:06,785 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 [2021-11-23 03:16:07,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:07,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:16:07,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:07,195 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:16:07,249 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:07,249 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 [2021-11-23 03:16:07,375 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 [2021-11-23 03:16:07,397 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:16:07,397 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 472 treesize of output 443 [2021-11-23 03:16:07,425 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:16:07,425 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 452 treesize of output 443 [2021-11-23 03:16:07,765 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:16:07,765 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 554 treesize of output 561 [2021-11-23 03:16:07,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:07,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:07,781 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 560 treesize of output 538 [2021-11-23 03:16:07,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:07,825 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:16:07,825 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 559 treesize of output 536 [2021-11-23 03:16:09,606 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:09,666 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:09,666 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 [2021-11-23 03:16:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:09,720 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:16:09,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:16:09,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:09,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:09,806 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:09,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-23 03:16:09,854 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:09,929 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:09,956 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:10,017 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:10,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:16:10,211 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:10,212 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 [2021-11-23 03:16:10,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:10,280 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:16:10,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:16:10,381 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:10,381 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 [2021-11-23 03:16:10,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:10,559 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 [2021-11-23 03:16:10,611 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:16:13,448 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '20750#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (< (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (< (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2021-11-23 03:16:13,449 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:16:13,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:16:13,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 30 [2021-11-23 03:16:13,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511378648] [2021-11-23 03:16:13,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:16:13,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-11-23 03:16:13,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:13,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-11-23 03:16:13,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=2104, Unknown=0, NotChecked=0, Total=2352 [2021-11-23 03:16:13,452 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) [2021-11-23 03:16:18,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:18,604 INFO L93 Difference]: Finished difference Result 847 states and 951 transitions. [2021-11-23 03:16:18,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-11-23 03:16:18,605 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 [2021-11-23 03:16:18,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:18,610 INFO L225 Difference]: With dead ends: 847 [2021-11-23 03:16:18,611 INFO L226 Difference]: Without dead ends: 847 [2021-11-23 03:16:18,614 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 68 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2070 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=1043, Invalid=5763, Unknown=0, NotChecked=0, Total=6806 [2021-11-23 03:16:18,615 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 4133 mSDsluCounter, 1917 mSDsCounter, 0 mSdLazyCounter, 2544 mSolverCounterSat, 180 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4135 SdHoareTripleChecker+Valid, 1986 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 180 IncrementalHoareTripleChecker+Valid, 2544 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 765 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:18,615 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4135 Valid, 1986 Invalid, 3489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [180 Valid, 2544 Invalid, 0 Unknown, 765 Unchecked, 2.3s Time] [2021-11-23 03:16:18,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 847 states. [2021-11-23 03:16:18,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 847 to 288. [2021-11-23 03:16:18,626 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) [2021-11-23 03:16:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 330 transitions. [2021-11-23 03:16:18,628 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 330 transitions. Word has length 34 [2021-11-23 03:16:18,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:18,628 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 330 transitions. [2021-11-23 03:16:18,629 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) [2021-11-23 03:16:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 330 transitions. [2021-11-23 03:16:18,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 03:16:18,629 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:18,630 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] [2021-11-23 03:16:18,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:16:18,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-11-23 03:16:18,852 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)] === [2021-11-23 03:16:18,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:18,853 INFO L85 PathProgramCache]: Analyzing trace with hash -767870067, now seen corresponding path program 1 times [2021-11-23 03:16:18,853 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:18,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020958487] [2021-11-23 03:16:18,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:18,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:19,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:19,024 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:19,024 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020958487] [2021-11-23 03:16:19,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020958487] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:16:19,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756402443] [2021-11-23 03:16:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:19,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:19,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:16:19,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:16:19,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:16:19,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:19,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 03:16:19,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:16:19,162 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 [2021-11-23 03:16:19,169 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 [2021-11-23 03:16:19,350 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 [2021-11-23 03:16:19,353 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 [2021-11-23 03:16:19,371 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:19,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:16:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:19,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756402443] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:16:19,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1542292965] [2021-11-23 03:16:19,527 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-23 03:16:19,527 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:16:19,527 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:16:19,528 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:16:19,528 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:16:19,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,575 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 [2021-11-23 03:16:19,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,600 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 [2021-11-23 03:16:19,606 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 [2021-11-23 03:16:19,613 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 [2021-11-23 03:16:19,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,640 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 [2021-11-23 03:16:19,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,649 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 [2021-11-23 03:16:19,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,657 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 [2021-11-23 03:16:19,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,692 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 [2021-11-23 03:16:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,718 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 [2021-11-23 03:16:19,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,728 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 [2021-11-23 03:16:19,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:16:19,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,764 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 [2021-11-23 03:16:19,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,776 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 [2021-11-23 03:16:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-23 03:16:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,833 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 38 treesize of output 47 [2021-11-23 03:16:19,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,887 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:16:19,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-23 03:16:19,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,900 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:16:19,900 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 [2021-11-23 03:16:19,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,929 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:16:19,930 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 [2021-11-23 03:16:19,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:19,977 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:19,994 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-23 03:16:19,994 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 [2021-11-23 03:16:20,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,005 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,019 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:16:20,019 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 [2021-11-23 03:16:20,098 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:16:20,098 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 [2021-11-23 03:16:20,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,107 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,120 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-23 03:16:20,121 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 [2021-11-23 03:16:20,230 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:16:20,231 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 [2021-11-23 03:16:20,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,250 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,256 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:16:20,257 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 [2021-11-23 03:16:20,316 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:16:20,317 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 [2021-11-23 03:16:20,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,407 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,408 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,432 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-23 03:16:20,433 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 528 treesize of output 490 [2021-11-23 03:16:20,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,445 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,473 INFO L354 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2021-11-23 03:16:20,474 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 653 treesize of output 656 [2021-11-23 03:16:20,486 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,488 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:20,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:20,525 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-23 03:16:20,526 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 664 treesize of output 631 [2021-11-23 03:16:20,874 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-23 03:16:20,875 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 677 treesize of output 694 [2021-11-23 03:16:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,216 INFO L354 Elim1Store]: treesize reduction 116, result has 22.1 percent of original size [2021-11-23 03:16:21,220 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 807 treesize of output 534 [2021-11-23 03:16:21,262 INFO L354 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2021-11-23 03:16:21,262 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 820 treesize of output 771 [2021-11-23 03:16:21,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,277 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,345 INFO L354 Elim1Store]: treesize reduction 232, result has 21.4 percent of original size [2021-11-23 03:16:21,345 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 6 new quantified variables, introduced 18 case distinctions, treesize of input 805 treesize of output 803 [2021-11-23 03:16:21,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,531 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,595 INFO L354 Elim1Store]: treesize reduction 134, result has 11.3 percent of original size [2021-11-23 03:16:21,596 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 23 case distinctions, treesize of input 912 treesize of output 603 [2021-11-23 03:16:21,841 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-23 03:16:21,842 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 893 treesize of output 911 [2021-11-23 03:16:21,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,861 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,912 INFO L354 Elim1Store]: treesize reduction 82, result has 34.4 percent of original size [2021-11-23 03:16:21,913 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 909 treesize of output 885 [2021-11-23 03:16:21,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,930 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,931 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:21,932 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:21,994 INFO L354 Elim1Store]: treesize reduction 238, result has 8.8 percent of original size [2021-11-23 03:16:21,994 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 7 new quantified variables, introduced 23 case distinctions, treesize of input 911 treesize of output 883 [2021-11-23 03:16:23,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:23,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:23,044 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:23,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:23,325 INFO L354 Elim1Store]: treesize reduction 164, result has 19.6 percent of original size [2021-11-23 03:16:23,326 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 25 case distinctions, treesize of input 3191 treesize of output 1945 [2021-11-23 03:16:23,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:23,358 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:23,381 INFO L354 Elim1Store]: treesize reduction 73, result has 8.8 percent of original size [2021-11-23 03:16:23,382 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 10 case distinctions, treesize of input 3190 treesize of output 2966 [2021-11-23 03:16:23,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:23,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:23,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:23,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:23,512 INFO L354 Elim1Store]: treesize reduction 300, result has 18.9 percent of original size [2021-11-23 03:16:23,512 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 7 new quantified variables, introduced 25 case distinctions, treesize of input 3175 treesize of output 2994 [2021-11-23 03:16:24,549 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 [2021-11-23 03:16:24,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:16:24,558 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 [2021-11-23 03:16:24,584 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:24,584 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 [2021-11-23 03:16:24,590 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 [2021-11-23 03:16:24,602 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 [2021-11-23 03:16:24,608 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 [2021-11-23 03:16:24,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:16:24,651 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:24,651 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 [2021-11-23 03:16:24,657 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 [2021-11-23 03:16:24,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:24,677 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 [2021-11-23 03:16:24,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:24,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 21 [2021-11-23 03:16:24,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:16:24,707 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 [2021-11-23 03:16:24,714 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 26 treesize of output 28 [2021-11-23 03:16:24,724 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 [2021-11-23 03:16:24,763 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 [2021-11-23 03:16:24,768 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 [2021-11-23 03:16:24,773 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 [2021-11-23 03:16:25,215 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:16:25,215 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 219 treesize of output 239 [2021-11-23 03:16:25,466 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:16:25,501 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:25,501 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 [2021-11-23 03:16:25,583 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:16:25,583 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 244 treesize of output 253 [2021-11-23 03:16:25,601 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:16:25,602 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 253 treesize of output 240 [2021-11-23 03:16:25,674 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 [2021-11-23 03:16:25,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:25,718 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 [2021-11-23 03:16:25,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:25,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:25,733 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 393 treesize of output 379 [2021-11-23 03:16:25,812 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:16:25,813 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 392 treesize of output 405 [2021-11-23 03:16:25,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:25,850 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:16:25,851 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 404 treesize of output 399 [2021-11-23 03:16:26,509 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:26,510 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 [2021-11-23 03:16:26,661 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:26,661 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 [2021-11-23 03:16:26,742 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:16:26,743 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 1 [2021-11-23 03:16:26,876 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:16:30,095 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '22187#(and (= (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= |ULTIMATE.start_seq_sort_core_#in~data#1.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (= |ULTIMATE.start_main_~data~0#1.base| |ULTIMATE.start_seq_sort_core_#in~data#1.base|) (<= 0 |#NULL.base|) (or (< |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 0) (< (select |#length| |ULTIMATE.start_seq_sort_core_~next~0#1.base|) (+ |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 4))) (<= |ULTIMATE.start_inspect_before_~shape#1.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (not (= |ULTIMATE.start_seq_sort_core_~data#1.base| 0)) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|) |ULTIMATE.start_seq_sort_core_#t~mem18#1.base|) (<= (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (= (select |#valid| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 1) (= |ULTIMATE.start_seq_sort_core_#in~data#1.offset| |ULTIMATE.start_main_~data~0#1.offset|) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.base| 0) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (= (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (= (select |#valid| |ULTIMATE.start_main_~data~0#1.base|) 1) (= |ULTIMATE.start_seq_sort_core_#t~mem18#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) |ULTIMATE.start_seq_sort_core_~data#1.offset|)) (<= (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 8) (select |#length| |ULTIMATE.start_seq_sort_core_~data#1.base|)) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4)) |ULTIMATE.start_seq_sort_core_~next~0#1.offset|) (or (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| 0)) (not (= |ULTIMATE.start_seq_sort_core_~next~0#1.offset| 0))) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (= |ULTIMATE.start_seq_sort_core_~dst~0#1.offset| 0) (= |ULTIMATE.start_seq_sort_core_~data#1.offset| |ULTIMATE.start_seq_sort_core_#in~data#1.offset|) (<= 0 (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_seq_sort_core_~next~0#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_seq_sort_core_~data#1.base|) (+ |ULTIMATE.start_seq_sort_core_~data#1.offset| 4))) (<= (+ (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 4) (select |#length| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2021-11-23 03:16:30,095 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:16:30,095 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:16:30,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 4] total 9 [2021-11-23 03:16:30,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591959869] [2021-11-23 03:16:30,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:16:30,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:16:30,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:30,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:16:30,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=741, Unknown=0, NotChecked=0, Total=870 [2021-11-23 03:16:30,097 INFO L87 Difference]: Start difference. First operand 288 states and 330 transitions. Second operand has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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) [2021-11-23 03:16:30,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:30,376 INFO L93 Difference]: Finished difference Result 349 states and 395 transitions. [2021-11-23 03:16:30,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 03:16:30,389 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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 [2021-11-23 03:16:30,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:30,391 INFO L225 Difference]: With dead ends: 349 [2021-11-23 03:16:30,391 INFO L226 Difference]: Without dead ends: 349 [2021-11-23 03:16:30,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 76 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=135, Invalid=795, Unknown=0, NotChecked=0, Total=930 [2021-11-23 03:16:30,393 INFO L933 BasicCegarLoop]: 174 mSDtfsCounter, 49 mSDsluCounter, 901 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:30,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 998 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:16:30,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2021-11-23 03:16:30,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 303. [2021-11-23 03:16:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 210 states have (on average 1.5761904761904761) internal successors, (331), 300 states have internal predecessors, (331), 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) [2021-11-23 03:16:30,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 345 transitions. [2021-11-23 03:16:30,403 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 345 transitions. Word has length 34 [2021-11-23 03:16:30,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:30,403 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 345 transitions. [2021-11-23 03:16:30,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.4) internal successors, (64), 9 states have internal predecessors, (64), 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) [2021-11-23 03:16:30,403 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 345 transitions. [2021-11-23 03:16:30,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-23 03:16:30,404 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:30,404 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] [2021-11-23 03:16:30,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:16:30,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:30,628 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)] === [2021-11-23 03:16:30,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:30,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1583015888, now seen corresponding path program 1 times [2021-11-23 03:16:30,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:30,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638370918] [2021-11-23 03:16:30,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:30,629 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:30,782 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:30,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638370918] [2021-11-23 03:16:30,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638370918] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:16:30,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1824123623] [2021-11-23 03:16:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:30,783 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:30,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:16:30,788 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:16:30,808 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:16:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:30,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 36 conjunts are in the unsatisfiable core [2021-11-23 03:16:30,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:16:31,197 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 [2021-11-23 03:16:31,200 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 [2021-11-23 03:16:31,209 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:31,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:16:31,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1824123623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:16:31,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:16:31,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [8] total 14 [2021-11-23 03:16:31,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587432682] [2021-11-23 03:16:31,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:16:31,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:16:31,210 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:31,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:16:31,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:16:31,211 INFO L87 Difference]: Start difference. First operand 303 states and 345 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) [2021-11-23 03:16:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:31,713 INFO L93 Difference]: Finished difference Result 504 states and 563 transitions. [2021-11-23 03:16:31,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 03:16:31,713 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 [2021-11-23 03:16:31,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:31,716 INFO L225 Difference]: With dead ends: 504 [2021-11-23 03:16:31,716 INFO L226 Difference]: Without dead ends: 504 [2021-11-23 03:16:31,716 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 [2021-11-23 03:16:31,717 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 891 mSDsluCounter, 1093 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 893 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:31,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [893 Valid, 1164 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:16:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2021-11-23 03:16:31,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 312. [2021-11-23 03:16:31,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 219 states have (on average 1.5570776255707763) internal successors, (341), 309 states have internal predecessors, (341), 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) [2021-11-23 03:16:31,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 355 transitions. [2021-11-23 03:16:31,727 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 355 transitions. Word has length 36 [2021-11-23 03:16:31,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:31,727 INFO L470 AbstractCegarLoop]: Abstraction has 312 states and 355 transitions. [2021-11-23 03:16:31,727 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) [2021-11-23 03:16:31,727 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 355 transitions. [2021-11-23 03:16:31,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2021-11-23 03:16:31,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:31,728 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] [2021-11-23 03:16:31,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 03:16:31,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:31,945 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)] === [2021-11-23 03:16:31,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:31,945 INFO L85 PathProgramCache]: Analyzing trace with hash -268978756, now seen corresponding path program 1 times [2021-11-23 03:16:31,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:31,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958345529] [2021-11-23 03:16:31,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:31,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:32,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-23 03:16:32,071 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:32,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958345529] [2021-11-23 03:16:32,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958345529] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:16:32,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [98572436] [2021-11-23 03:16:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:32,072 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:32,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:16:32,077 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:16:32,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-23 03:16:32,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:32,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 231 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 03:16:32,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:16:32,292 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 [2021-11-23 03:16:32,294 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 25 treesize of output 13 [2021-11-23 03:16:32,319 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 03:16:32,319 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:16:32,445 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 03:16:32,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [98572436] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:16:32,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [994152095] [2021-11-23 03:16:32,448 INFO L159 IcfgInterpreter]: Started Sifa with 29 locations of interest [2021-11-23 03:16:32,448 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:16:32,449 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:16:32,449 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:16:32,450 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:16:32,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,501 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 [2021-11-23 03:16:32,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:16:32,527 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 [2021-11-23 03:16:32,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,536 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 [2021-11-23 03:16:32,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,561 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 [2021-11-23 03:16:32,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,574 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 [2021-11-23 03:16:32,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:16:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,601 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 [2021-11-23 03:16:32,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,630 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 [2021-11-23 03:16:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,643 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 [2021-11-23 03:16:32,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,658 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 [2021-11-23 03:16:32,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,684 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 [2021-11-23 03:16:32,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,697 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 [2021-11-23 03:16:32,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,708 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 [2021-11-23 03:16:32,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,772 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 38 treesize of output 47 [2021-11-23 03:16:32,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,831 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:16:32,831 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 [2021-11-23 03:16:32,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,862 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:16:32,863 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 [2021-11-23 03:16:32,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,890 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:16:32,890 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 [2021-11-23 03:16:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:32,934 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:32,951 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-23 03:16:32,951 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 [2021-11-23 03:16:33,034 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:16:33,034 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 [2021-11-23 03:16:33,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,045 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,057 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:16:33,058 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 269 treesize of output 266 [2021-11-23 03:16:33,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,068 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,081 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-23 03:16:33,082 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 268 treesize of output 261 [2021-11-23 03:16:33,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,153 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:16:33,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 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 [2021-11-23 03:16:33,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,166 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,171 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:16:33,171 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 [2021-11-23 03:16:33,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,215 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:16:33,216 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 [2021-11-23 03:16:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,299 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,362 INFO L354 Elim1Store]: treesize reduction 174, result has 8.9 percent of original size [2021-11-23 03:16:33,363 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 525 treesize of output 487 [2021-11-23 03:16:33,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,387 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,435 INFO L354 Elim1Store]: treesize reduction 286, result has 9.2 percent of original size [2021-11-23 03:16:33,436 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 650 treesize of output 653 [2021-11-23 03:16:33,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,448 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:33,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:33,482 INFO L354 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2021-11-23 03:16:33,483 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 751 treesize of output 718 [2021-11-23 03:16:33,953 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-23 03:16:33,954 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 1434 treesize of output 1415 [2021-11-23 03:16:35,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:35,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:35,012 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:35,127 INFO L354 Elim1Store]: treesize reduction 398, result has 12.7 percent of original size [2021-11-23 03:16:35,127 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 3486 treesize of output 1989 [2021-11-23 03:16:35,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:35,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:35,159 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:35,270 INFO L354 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2021-11-23 03:16:35,271 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 3445 treesize of output 2731 [2021-11-23 03:16:35,343 INFO L354 Elim1Store]: treesize reduction 160, result has 13.5 percent of original size [2021-11-23 03:16:35,344 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 3404 treesize of output 3075 [2021-11-23 03:16:36,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:36,495 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:36,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:36,497 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:36,707 INFO L354 Elim1Store]: treesize reduction 494, result has 9.0 percent of original size [2021-11-23 03:16:36,707 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 6571 treesize of output 3692 [2021-11-23 03:16:36,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:36,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:36,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:36,788 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:36,926 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-23 03:16:36,926 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 6552 treesize of output 5178 [2021-11-23 03:16:37,199 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-23 03:16:37,199 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 6533 treesize of output 6243 [2021-11-23 03:16:37,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:37,259 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:37,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:37,345 INFO L354 Elim1Store]: treesize reduction 184, result has 24.9 percent of original size [2021-11-23 03:16:37,346 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 6494 treesize of output 5864 [2021-11-23 03:16:41,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:41,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:41,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:42,136 INFO L354 Elim1Store]: treesize reduction 484, result has 11.8 percent of original size [2021-11-23 03:16:42,137 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 12303 treesize of output 6899 [2021-11-23 03:16:42,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:42,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:42,211 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:42,364 INFO L354 Elim1Store]: treesize reduction 454, result has 12.2 percent of original size [2021-11-23 03:16:42,365 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 26 case distinctions, treesize of input 12182 treesize of output 9719 [2021-11-23 03:16:42,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:42,452 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:16:42,495 INFO L354 Elim1Store]: treesize reduction 208, result has 10.7 percent of original size [2021-11-23 03:16:42,496 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 12141 treesize of output 11125 [2021-11-23 03:16:45,999 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 [2021-11-23 03:16:46,005 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 [2021-11-23 03:16:46,010 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 [2021-11-23 03:16:46,035 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:16:46,036 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 [2021-11-23 03:16:46,057 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:46,057 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 [2021-11-23 03:16:46,072 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 [2021-11-23 03:16:46,078 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 [2021-11-23 03:16:46,084 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 [2021-11-23 03:16:46,117 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-23 03:16:46,117 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 [2021-11-23 03:16:46,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:46,126 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 [2021-11-23 03:16:46,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:46,132 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 23 [2021-11-23 03:16:46,157 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:46,158 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 [2021-11-23 03:16:46,166 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 [2021-11-23 03:16:46,182 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 [2021-11-23 03:16:46,188 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 [2021-11-23 03:16:46,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-23 03:16:46,205 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 [2021-11-23 03:16:46,209 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 [2021-11-23 03:16:46,213 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 [2021-11-23 03:16:49,243 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:16:49,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 219 treesize of output 239 [2021-11-23 03:16:49,626 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:16:49,647 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:16:49,695 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:16:49,695 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 [2021-11-23 03:16:49,724 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:16:49,725 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 1 [2021-11-23 03:16:49,786 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 [2021-11-23 03:16:49,805 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:16:49,806 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 366 treesize of output 337 [2021-11-23 03:16:49,833 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:16:49,833 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 346 treesize of output 355 [2021-11-23 03:16:50,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:50,039 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 [2021-11-23 03:16:50,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:50,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:50,052 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 556 treesize of output 530 [2021-11-23 03:16:50,136 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:16:50,136 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 555 treesize of output 562 [2021-11-23 03:16:50,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:50,178 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:16:50,178 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 554 treesize of output 549 [2021-11-23 03:16:50,451 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:16:50,451 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 [2021-11-23 03:16:50,499 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 10 for LOIs [2021-11-23 03:16:50,501 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:16:52,261 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '24043#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2021-11-23 03:16:52,261 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:16:52,261 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:16:52,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 12 [2021-11-23 03:16:52,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647186928] [2021-11-23 03:16:52,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:16:52,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 03:16:52,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:52,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 03:16:52,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=781, Unknown=0, NotChecked=0, Total=930 [2021-11-23 03:16:52,263 INFO L87 Difference]: Start difference. First operand 312 states and 355 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) [2021-11-23 03:16:52,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:52,612 INFO L93 Difference]: Finished difference Result 310 states and 349 transitions. [2021-11-23 03:16:52,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:16:52,612 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 [2021-11-23 03:16:52,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:52,614 INFO L225 Difference]: With dead ends: 310 [2021-11-23 03:16:52,614 INFO L226 Difference]: Without dead ends: 310 [2021-11-23 03:16:52,615 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=193, Invalid=997, Unknown=0, NotChecked=0, Total=1190 [2021-11-23 03:16:52,615 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 700 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 386 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 386 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:52,616 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 390 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 386 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:16:52,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2021-11-23 03:16:52,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2021-11-23 03:16:52,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.538812785388128) internal successors, (337), 307 states have internal predecessors, (337), 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) [2021-11-23 03:16:52,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 349 transitions. [2021-11-23 03:16:52,624 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 349 transitions. Word has length 38 [2021-11-23 03:16:52,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:52,625 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 349 transitions. [2021-11-23 03:16:52,625 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) [2021-11-23 03:16:52,625 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 349 transitions. [2021-11-23 03:16:52,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 03:16:52,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:52,626 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] [2021-11-23 03:16:52,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-23 03:16:52,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2021-11-23 03:16:52,849 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)] === [2021-11-23 03:16:52,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:52,849 INFO L85 PathProgramCache]: Analyzing trace with hash 866023571, now seen corresponding path program 1 times [2021-11-23 03:16:52,849 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:52,849 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177160888] [2021-11-23 03:16:52,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:52,849 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:52,959 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:52,959 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:52,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177160888] [2021-11-23 03:16:52,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177160888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:16:52,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:16:52,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 03:16:52,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437180405] [2021-11-23 03:16:52,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:16:52,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:16:52,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:52,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:16:52,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-11-23 03:16:52,961 INFO L87 Difference]: Start difference. First operand 310 states and 349 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) [2021-11-23 03:16:53,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:53,345 INFO L93 Difference]: Finished difference Result 387 states and 422 transitions. [2021-11-23 03:16:53,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 03:16:53,346 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 [2021-11-23 03:16:53,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:53,347 INFO L225 Difference]: With dead ends: 387 [2021-11-23 03:16:53,348 INFO L226 Difference]: Without dead ends: 387 [2021-11-23 03:16:53,348 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 [2021-11-23 03:16:53,349 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 701 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 908 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:53,349 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [703 Valid, 908 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 03:16:53,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-23 03:16:53,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 310. [2021-11-23 03:16:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 219 states have (on average 1.5342465753424657) internal successors, (336), 307 states have internal predecessors, (336), 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) [2021-11-23 03:16:53,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 348 transitions. [2021-11-23 03:16:53,358 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 348 transitions. Word has length 39 [2021-11-23 03:16:53,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:53,359 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 348 transitions. [2021-11-23 03:16:53,359 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) [2021-11-23 03:16:53,359 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 348 transitions. [2021-11-23 03:16:53,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-23 03:16:53,360 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:53,360 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, 1, 1, 1, 1, 1, 1] [2021-11-23 03:16:53,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-11-23 03:16:53,361 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr37REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:16:53,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:53,361 INFO L85 PathProgramCache]: Analyzing trace with hash -543981640, now seen corresponding path program 2 times [2021-11-23 03:16:53,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:53,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920492882] [2021-11-23 03:16:53,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:53,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:53,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:16:53,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:53,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920492882] [2021-11-23 03:16:53,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920492882] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:16:53,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836154984] [2021-11-23 03:16:53,592 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-23 03:16:53,592 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:53,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:16:53,593 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:16:53,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-23 03:16:53,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-23 03:16:53,658 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-23 03:16:53,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 03:16:53,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:16:53,835 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 [2021-11-23 03:16:53,838 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 [2021-11-23 03:16:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 03:16:53,857 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:16:53,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836154984] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:16:53,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:16:53,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2021-11-23 03:16:53,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175762815] [2021-11-23 03:16:53,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:16:53,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 03:16:53,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:53,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 03:16:53,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-11-23 03:16:53,859 INFO L87 Difference]: Start difference. First operand 310 states and 348 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-11-23 03:16:54,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:54,133 INFO L93 Difference]: Finished difference Result 347 states and 386 transitions. [2021-11-23 03:16:54,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 03:16:54,135 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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 40 [2021-11-23 03:16:54,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:54,136 INFO L225 Difference]: With dead ends: 347 [2021-11-23 03:16:54,136 INFO L226 Difference]: Without dead ends: 347 [2021-11-23 03:16:54,137 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=216, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:16:54,137 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 114 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:54,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 780 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-23 03:16:54,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-11-23 03:16:54,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 295. [2021-11-23 03:16:54,143 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) [2021-11-23 03:16:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 332 transitions. [2021-11-23 03:16:54,144 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 332 transitions. Word has length 40 [2021-11-23 03:16:54,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:54,145 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 332 transitions. [2021-11-23 03:16:54,145 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 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) [2021-11-23 03:16:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 332 transitions. [2021-11-23 03:16:54,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 03:16:54,145 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:54,146 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] [2021-11-23 03:16:54,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-23 03:16:54,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-11-23 03:16:54,368 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:16:54,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:54,368 INFO L85 PathProgramCache]: Analyzing trace with hash -975101704, now seen corresponding path program 1 times [2021-11-23 03:16:54,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:54,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645573361] [2021-11-23 03:16:54,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:54,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:54,435 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:16:54,435 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:54,435 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645573361] [2021-11-23 03:16:54,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645573361] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:16:54,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:16:54,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-23 03:16:54,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850319695] [2021-11-23 03:16:54,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:16:54,437 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-23 03:16:54,437 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:54,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-23 03:16:54,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-23 03:16:54,438 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) [2021-11-23 03:16:54,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:54,869 INFO L93 Difference]: Finished difference Result 330 states and 367 transitions. [2021-11-23 03:16:54,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:16:54,870 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 [2021-11-23 03:16:54,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:54,872 INFO L225 Difference]: With dead ends: 330 [2021-11-23 03:16:54,872 INFO L226 Difference]: Without dead ends: 330 [2021-11-23 03:16:54,873 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 [2021-11-23 03:16:54,873 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, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:54,873 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [140 Valid, 787 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 484 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:16:54,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-23 03:16:54,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 300. [2021-11-23 03:16:54,880 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) [2021-11-23 03:16:54,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 336 transitions. [2021-11-23 03:16:54,882 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 336 transitions. Word has length 41 [2021-11-23 03:16:54,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:54,882 INFO L470 AbstractCegarLoop]: Abstraction has 300 states and 336 transitions. [2021-11-23 03:16:54,882 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) [2021-11-23 03:16:54,883 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 336 transitions. [2021-11-23 03:16:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-23 03:16:54,883 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:54,884 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] [2021-11-23 03:16:54,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-11-23 03:16:54,884 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:16:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:54,885 INFO L85 PathProgramCache]: Analyzing trace with hash -975101703, now seen corresponding path program 1 times [2021-11-23 03:16:54,885 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:54,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585927877] [2021-11-23 03:16:54,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:54,885 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:55,004 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:55,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585927877] [2021-11-23 03:16:55,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585927877] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:16:55,004 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:16:55,004 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:16:55,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806726792] [2021-11-23 03:16:55,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:16:55,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 03:16:55,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:16:55,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 03:16:55,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-11-23 03:16:55,006 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) [2021-11-23 03:16:55,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:16:55,552 INFO L93 Difference]: Finished difference Result 380 states and 415 transitions. [2021-11-23 03:16:55,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-23 03:16:55,553 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 [2021-11-23 03:16:55,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:16:55,554 INFO L225 Difference]: With dead ends: 380 [2021-11-23 03:16:55,554 INFO L226 Difference]: Without dead ends: 380 [2021-11-23 03:16:55,555 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 [2021-11-23 03:16:55,555 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 958 mSDsluCounter, 676 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 03:16:55,555 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 804 Invalid, 555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 03:16:55,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-23 03:16:55,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 303. [2021-11-23 03:16:55,560 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) [2021-11-23 03:16:55,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 339 transitions. [2021-11-23 03:16:55,562 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 339 transitions. Word has length 41 [2021-11-23 03:16:55,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:16:55,562 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 339 transitions. [2021-11-23 03:16:55,562 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) [2021-11-23 03:16:55,562 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 339 transitions. [2021-11-23 03:16:55,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:16:55,563 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:16:55,563 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] [2021-11-23 03:16:55,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-11-23 03:16:55,564 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)] === [2021-11-23 03:16:55,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:16:55,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1768846581, now seen corresponding path program 1 times [2021-11-23 03:16:55,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:16:55,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253001783] [2021-11-23 03:16:55,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:55,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:16:55,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:55,943 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:55,943 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:16:55,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253001783] [2021-11-23 03:16:55,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253001783] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:16:55,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026549798] [2021-11-23 03:16:55,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:16:55,944 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:16:55,944 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:16:55,946 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:16:55,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-23 03:16:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:16:56,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 03:16:56,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:16:56,094 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 [2021-11-23 03:16:56,129 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 [2021-11-23 03:16:56,148 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 [2021-11-23 03:16:56,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:56,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:56,154 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 [2021-11-23 03:16:56,193 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 03:16:56,193 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 [2021-11-23 03:16:56,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:56,220 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 [2021-11-23 03:16:56,297 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 03:16:56,298 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 [2021-11-23 03:16:56,387 INFO L354 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2021-11-23 03:16:56,388 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 [2021-11-23 03:16:56,469 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 [2021-11-23 03:16:56,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:16:56,492 INFO L354 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2021-11-23 03:16:56,492 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 [2021-11-23 03:16:57,080 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 [2021-11-23 03:16:57,541 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-11-23 03:16:57,542 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 [2021-11-23 03:16:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:16:57,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:17:01,624 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 [2021-11-23 03:17:03,635 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 [2021-11-23 03:17:12,676 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 [2021-11-23 03:17:12,683 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 03:17:12,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026549798] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:17:12,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1972634756] [2021-11-23 03:17:12,689 INFO L159 IcfgInterpreter]: Started Sifa with 35 locations of interest [2021-11-23 03:17:12,689 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:17:12,689 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:17:12,689 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:17:12,690 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:17:12,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,738 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 [2021-11-23 03:17:12,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,757 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 30 treesize of output 21 [2021-11-23 03:17:12,765 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 [2021-11-23 03:17:12,772 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 [2021-11-23 03:17:12,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,798 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 [2021-11-23 03:17:12,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,813 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 [2021-11-23 03:17:12,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,826 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 [2021-11-23 03:17:12,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,836 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 [2021-11-23 03:17:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,863 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 [2021-11-23 03:17:12,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,884 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 [2021-11-23 03:17:12,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,896 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 [2021-11-23 03:17:12,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,924 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 [2021-11-23 03:17:12,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,937 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 [2021-11-23 03:17:12,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:12,956 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 [2021-11-23 03:17:13,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,013 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 38 treesize of output 47 [2021-11-23 03:17:13,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,074 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:17:13,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 [2021-11-23 03:17:13,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,125 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:17:13,126 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 [2021-11-23 03:17:13,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,137 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:17:13,137 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 [2021-11-23 03:17:13,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,181 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,197 INFO L354 Elim1Store]: treesize reduction 47, result has 13.0 percent of original size [2021-11-23 03:17:13,197 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 [2021-11-23 03:17:13,293 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:17:13,294 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 [2021-11-23 03:17:13,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,317 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,332 INFO L354 Elim1Store]: treesize reduction 55, result has 11.3 percent of original size [2021-11-23 03:17:13,332 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 [2021-11-23 03:17:13,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,343 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,355 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:17:13,356 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 [2021-11-23 03:17:13,436 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:17:13,436 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 [2021-11-23 03:17:13,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,454 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:17:13,455 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 [2021-11-23 03:17:13,499 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:17:13,499 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 [2021-11-23 03:17:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,576 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,577 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,601 INFO L354 Elim1Store]: treesize reduction 65, result has 9.7 percent of original size [2021-11-23 03:17:13,601 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 528 treesize of output 490 [2021-11-23 03:17:13,622 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,625 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,674 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-23 03:17:13,675 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 653 treesize of output 620 [2021-11-23 03:17:13,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,694 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:13,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,699 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:13,729 INFO L354 Elim1Store]: treesize reduction 131, result has 9.0 percent of original size [2021-11-23 03:17:13,730 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 637 treesize of output 640 [2021-11-23 03:17:14,115 INFO L354 Elim1Store]: treesize reduction 310, result has 16.4 percent of original size [2021-11-23 03:17:14,116 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 1266 treesize of output 1243 [2021-11-23 03:17:14,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:14,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:14,848 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:14,849 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,030 INFO L354 Elim1Store]: treesize reduction 194, result has 16.0 percent of original size [2021-11-23 03:17:15,030 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 1646 treesize of output 1049 [2021-11-23 03:17:15,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,052 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,053 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,151 INFO L354 Elim1Store]: treesize reduction 292, result has 17.7 percent of original size [2021-11-23 03:17:15,151 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 1645 treesize of output 1496 [2021-11-23 03:17:15,231 INFO L354 Elim1Store]: treesize reduction 154, result has 14.0 percent of original size [2021-11-23 03:17:15,231 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 1644 treesize of output 1505 [2021-11-23 03:17:15,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,634 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,637 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,826 INFO L354 Elim1Store]: treesize reduction 246, result has 10.2 percent of original size [2021-11-23 03:17:15,827 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 1779 treesize of output 1126 [2021-11-23 03:17:15,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,866 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:15,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:15,966 INFO L354 Elim1Store]: treesize reduction 166, result has 22.8 percent of original size [2021-11-23 03:17:15,967 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 1760 treesize of output 1646 [2021-11-23 03:17:16,245 INFO L354 Elim1Store]: treesize reduction 424, result has 14.2 percent of original size [2021-11-23 03:17:16,246 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 1762 treesize of output 1712 [2021-11-23 03:17:16,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:16,282 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:16,283 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:16,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:16,285 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:16,407 INFO L354 Elim1Store]: treesize reduction 340, result has 9.1 percent of original size [2021-11-23 03:17:16,408 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 1766 treesize of output 1591 [2021-11-23 03:17:17,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:17,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:17,799 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:17,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:17,934 INFO L354 Elim1Store]: treesize reduction 250, result has 15.0 percent of original size [2021-11-23 03:17:17,935 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 25 case distinctions, treesize of input 3624 treesize of output 2210 [2021-11-23 03:17:17,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:17,980 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:17,981 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:18,106 INFO L354 Elim1Store]: treesize reduction 364, result has 16.1 percent of original size [2021-11-23 03:17:18,108 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 25 case distinctions, treesize of input 3595 treesize of output 3229 [2021-11-23 03:17:18,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:18,147 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:18,199 INFO L354 Elim1Store]: treesize reduction 196, result has 11.3 percent of original size [2021-11-23 03:17:18,200 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 3566 treesize of output 3252 [2021-11-23 03:17:19,488 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 [2021-11-23 03:17:19,493 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 [2021-11-23 03:17:19,499 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 [2021-11-23 03:17:19,529 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:17:19,529 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 [2021-11-23 03:17:19,537 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 [2021-11-23 03:17:19,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:17:19,560 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 [2021-11-23 03:17:19,566 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 [2021-11-23 03:17:19,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:19,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:17:19,592 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 [2021-11-23 03:17:19,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:19,600 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 23 [2021-11-23 03:17:19,639 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:17:19,639 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 [2021-11-23 03:17:19,650 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 [2021-11-23 03:17:19,671 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 [2021-11-23 03:17:19,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:17:19,691 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 [2021-11-23 03:17:19,703 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 [2021-11-23 03:17:19,709 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 [2021-11-23 03:17:19,714 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 [2021-11-23 03:17:23,042 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:17:23,043 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 219 treesize of output 239 [2021-11-23 03:17:23,769 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:17:23,769 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 [2021-11-23 03:17:23,796 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:23,796 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 1 [2021-11-23 03:17:23,832 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:17:23,864 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:23,865 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 1 [2021-11-23 03:17:23,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:23,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:17:23,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:23,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:17:23,994 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:24,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:24,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:17:24,206 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 [2021-11-23 03:17:24,231 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:17:24,231 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 768 treesize of output 707 [2021-11-23 03:17:24,264 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:17:24,265 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 732 treesize of output 723 [2021-11-23 03:17:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:24,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:24,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 1760 treesize of output 1650 [2021-11-23 03:17:24,967 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:17:24,968 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 1759 treesize of output 1720 [2021-11-23 03:17:25,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:25,049 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:17:25,050 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 1712 treesize of output 1677 [2021-11-23 03:17:29,582 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:29,599 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:29,641 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:29,672 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:29,698 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:30,947 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:17:30,947 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 [2021-11-23 03:17:31,136 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:31,165 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:31,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:31,214 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:31,237 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:31,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,485 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,528 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,570 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,632 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,678 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,739 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:31,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:31,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,768 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:17:31,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:17:31,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:17:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:31,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:17:32,502 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:32,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:32,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:32,571 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:32,596 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:17:32,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,730 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:17:32,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,774 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:17:32,774 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:17:32,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,807 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:17:32,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,832 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:17:32,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:32,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:17:33,019 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:17:33,020 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 1 [2021-11-23 03:17:34,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:34,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:17:34,101 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 43 for LOIs [2021-11-23 03:17:34,146 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:17:37,781 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '27838#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| Int) (|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| Int)) (and (or (not (= |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2| 0)) (not (= |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 0))) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 8) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|)) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2|) 0) (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_2| 4)) 0))))' at error location [2021-11-23 03:17:37,781 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:17:37,781 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:17:37,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 33 [2021-11-23 03:17:37,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022008349] [2021-11-23 03:17:37,781 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:17:37,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 03:17:37,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:17:37,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 03:17:37,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=229, Invalid=2638, Unknown=3, NotChecked=210, Total=3080 [2021-11-23 03:17:37,784 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) [2021-11-23 03:17:39,969 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)))) is different from false [2021-11-23 03:17:41,993 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 [2021-11-23 03:17:43,997 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 [2021-11-23 03:17:46,213 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))))) is different from false [2021-11-23 03:17:46,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:17:46,819 INFO L93 Difference]: Finished difference Result 394 states and 436 transitions. [2021-11-23 03:17:46,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 03:17:46,820 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 [2021-11-23 03:17:46,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:17:46,822 INFO L225 Difference]: With dead ends: 394 [2021-11-23 03:17:46,823 INFO L226 Difference]: Without dead ends: 394 [2021-11-23 03:17:46,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 87 SyntacticMatches, 5 SemanticMatches, 66 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=323, Invalid=3476, Unknown=7, NotChecked=750, Total=4556 [2021-11-23 03:17:46,825 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 94 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 719 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 3199 SdHoareTripleChecker+Invalid, 1480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 755 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 03:17:46,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [94 Valid, 3199 Invalid, 1480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 719 Invalid, 0 Unknown, 755 Unchecked, 0.6s Time] [2021-11-23 03:17:46,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2021-11-23 03:17:46,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 303. [2021-11-23 03:17:46,834 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) [2021-11-23 03:17:46,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 338 transitions. [2021-11-23 03:17:46,837 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 338 transitions. Word has length 44 [2021-11-23 03:17:46,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:17:46,837 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 338 transitions. [2021-11-23 03:17:46,837 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) [2021-11-23 03:17:46,837 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 338 transitions. [2021-11-23 03:17:46,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:17:46,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:17:46,838 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] [2021-11-23 03:17:46,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-23 03:17:47,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:17:47,064 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting failErr0ASSERT_VIOLATIONMEMORY_LEAK === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:17:47,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:17:47,065 INFO L85 PathProgramCache]: Analyzing trace with hash 99803102, now seen corresponding path program 1 times [2021-11-23 03:17:47,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:17:47,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648135842] [2021-11-23 03:17:47,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:17:47,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:17:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:17:47,529 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:17:47,529 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:17:47,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648135842] [2021-11-23 03:17:47,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648135842] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:17:47,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924452138] [2021-11-23 03:17:47,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:17:47,530 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:17:47,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:17:47,531 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:17:47,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-23 03:17:47,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:17:47,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 45 conjunts are in the unsatisfiable core [2021-11-23 03:17:47,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:17:47,664 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 [2021-11-23 03:17:47,705 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 [2021-11-23 03:17:47,729 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 [2021-11-23 03:17:47,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:47,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:47,735 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 [2021-11-23 03:17:47,774 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-23 03:17:47,775 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 [2021-11-23 03:17:47,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:47,801 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 [2021-11-23 03:17:47,867 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 03:17:47,867 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 [2021-11-23 03:17:47,977 INFO L354 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2021-11-23 03:17:47,977 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 [2021-11-23 03:17:48,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:48,121 INFO L354 Elim1Store]: treesize reduction 51, result has 25.0 percent of original size [2021-11-23 03:17:48,122 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 [2021-11-23 03:17:48,153 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 [2021-11-23 03:17:48,738 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 [2021-11-23 03:17:49,232 INFO L354 Elim1Store]: treesize reduction 12, result has 73.3 percent of original size [2021-11-23 03:17:49,232 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 [2021-11-23 03:17:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 6 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:17:49,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:17:53,103 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 [2021-11-23 03:17:55,110 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 [2021-11-23 03:17:59,155 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 [2021-11-23 03:17:59,161 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2021-11-23 03:17:59,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924452138] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:17:59,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [21888729] [2021-11-23 03:17:59,163 INFO L159 IcfgInterpreter]: Started Sifa with 28 locations of interest [2021-11-23 03:17:59,163 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:17:59,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:17:59,164 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:17:59,164 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:17:59,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,198 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 [2021-11-23 03:17:59,214 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 [2021-11-23 03:17:59,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,221 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 [2021-11-23 03:17:59,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:17:59,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,242 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 [2021-11-23 03:17:59,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,253 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 [2021-11-23 03:17:59,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,261 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 [2021-11-23 03:17:59,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,270 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 [2021-11-23 03:17:59,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:17:59,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,322 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 [2021-11-23 03:17:59,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,334 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 [2021-11-23 03:17:59,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,353 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 [2021-11-23 03:17:59,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,362 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 [2021-11-23 03:17:59,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,371 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 [2021-11-23 03:17:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,418 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 38 treesize of output 47 [2021-11-23 03:17:59,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,464 INFO L354 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2021-11-23 03:17:59,464 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 [2021-11-23 03:17:59,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,475 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:17:59,476 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 [2021-11-23 03:17:59,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,501 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-23 03:17:59,502 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 [2021-11-23 03:17:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,551 INFO L354 Elim1Store]: treesize reduction 49, result has 15.5 percent of original size [2021-11-23 03:17:59,552 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 296 treesize of output 248 [2021-11-23 03:17:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,566 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,584 INFO L354 Elim1Store]: treesize reduction 57, result has 13.6 percent of original size [2021-11-23 03:17:59,585 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 277 treesize of output 270 [2021-11-23 03:17:59,668 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:17:59,668 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 258 treesize of output 268 [2021-11-23 03:17:59,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,679 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,690 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:17:59,690 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 250 treesize of output 247 [2021-11-23 03:17:59,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,761 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:17:59,761 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 [2021-11-23 03:17:59,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,802 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:17:59,803 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 [2021-11-23 03:17:59,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,814 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,818 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:17:59,818 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 [2021-11-23 03:17:59,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,887 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,888 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,933 INFO L354 Elim1Store]: treesize reduction 190, result has 8.2 percent of original size [2021-11-23 03:17:59,933 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 525 treesize of output 528 [2021-11-23 03:17:59,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,946 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:17:59,989 INFO L354 Elim1Store]: treesize reduction 258, result has 10.1 percent of original size [2021-11-23 03:17:59,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 626 treesize of output 522 [2021-11-23 03:17:59,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:17:59,999 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:00,000 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:00,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:00,034 INFO L354 Elim1Store]: treesize reduction 98, result has 35.1 percent of original size [2021-11-23 03:18:00,035 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 751 treesize of output 718 [2021-11-23 03:18:00,442 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-23 03:18:00,443 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 1434 treesize of output 1415 [2021-11-23 03:18:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:01,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:01,215 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:01,323 INFO L354 Elim1Store]: treesize reduction 336, result has 13.8 percent of original size [2021-11-23 03:18:01,324 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 2465 treesize of output 1388 [2021-11-23 03:18:01,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:01,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:01,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:01,455 INFO L354 Elim1Store]: treesize reduction 336, result has 14.3 percent of original size [2021-11-23 03:18:01,456 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 2444 treesize of output 2027 [2021-11-23 03:18:01,494 INFO L354 Elim1Store]: treesize reduction 49, result has 12.5 percent of original size [2021-11-23 03:18:01,495 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 2423 treesize of output 2272 [2021-11-23 03:18:02,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,067 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:02,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:02,295 INFO L354 Elim1Store]: treesize reduction 398, result has 8.7 percent of original size [2021-11-23 03:18:02,296 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 3822 treesize of output 2107 [2021-11-23 03:18:02,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,351 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:02,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,353 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:02,478 INFO L354 Elim1Store]: treesize reduction 388, result has 8.5 percent of original size [2021-11-23 03:18:02,479 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 3803 treesize of output 3110 [2021-11-23 03:18:02,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:02,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:02,579 INFO L354 Elim1Store]: treesize reduction 100, result has 35.5 percent of original size [2021-11-23 03:18:02,579 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 3784 treesize of output 3592 [2021-11-23 03:18:02,802 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-23 03:18:02,802 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 3786 treesize of output 3658 [2021-11-23 03:18:06,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:06,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:06,996 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:07,187 INFO L354 Elim1Store]: treesize reduction 414, result has 12.8 percent of original size [2021-11-23 03:18:07,188 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 12994 treesize of output 6952 [2021-11-23 03:18:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:07,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:07,267 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:07,413 INFO L354 Elim1Store]: treesize reduction 416, result has 13.2 percent of original size [2021-11-23 03:18:07,413 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 12953 treesize of output 10551 [2021-11-23 03:18:07,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:07,491 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:07,516 INFO L354 Elim1Store]: treesize reduction 85, result has 7.6 percent of original size [2021-11-23 03:18:07,516 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 10 case distinctions, treesize of input 12812 treesize of output 12066 [2021-11-23 03:18:11,272 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 [2021-11-23 03:18:11,276 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 [2021-11-23 03:18:11,280 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 [2021-11-23 03:18:11,300 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:18:11,300 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 [2021-11-23 03:18:11,320 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:11,320 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 [2021-11-23 03:18:11,352 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 [2021-11-23 03:18:11,358 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 [2021-11-23 03:18:11,364 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 [2021-11-23 03:18:11,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:11,377 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 [2021-11-23 03:18:11,381 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 [2021-11-23 03:18:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:11,387 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 34 treesize of output 21 [2021-11-23 03:18:11,409 INFO L354 Elim1Store]: treesize reduction 24, result has 38.5 percent of original size [2021-11-23 03:18:11,409 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 [2021-11-23 03:18:11,440 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:18:11,440 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 [2021-11-23 03:18:11,455 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 [2021-11-23 03:18:11,464 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 [2021-11-23 03:18:11,471 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 26 treesize of output 28 [2021-11-23 03:18:11,480 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 [2021-11-23 03:18:11,484 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 [2021-11-23 03:18:11,488 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 [2021-11-23 03:18:14,319 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:18:14,319 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 219 treesize of output 239 [2021-11-23 03:18:14,681 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:14,682 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 [2021-11-23 03:18:14,707 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:18:14,707 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 1 [2021-11-23 03:18:14,734 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:18:14,734 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 1 [2021-11-23 03:18:14,801 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:18:14,802 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 287 treesize of output 296 [2021-11-23 03:18:14,817 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:18:14,818 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 296 treesize of output 275 [2021-11-23 03:18:14,887 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 [2021-11-23 03:18:14,998 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:18:14,998 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 540 treesize of output 549 [2021-11-23 03:18:15,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:15,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:15,012 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 548 treesize of output 518 [2021-11-23 03:18:15,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:15,046 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:18:15,046 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 547 treesize of output 542 [2021-11-23 03:18:15,409 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:18:15,409 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 [2021-11-23 03:18:15,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:15,507 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 [2021-11-23 03:18:15,520 INFO L197 IcfgInterpreter]: Interpreting procedure fail with input of size 32 for LOIs [2021-11-23 03:18:15,529 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:18:17,974 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '28873#(and (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= |#NULL.base| 0) (exists ((|v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3| Int) (|v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| Int)) (and (= (select (select |#memory_$Pointer$.base| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= 0 |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) (= (select |#valid| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) 1) (= (select (select |#memory_$Pointer$.offset| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|) |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3|) 0) (<= (+ |v_ULTIMATE.start_inspect_before_~shape#1.offset_BEFORE_CALL_3| 4) (select |#length| |v_ULTIMATE.start_inspect_before_~shape#1.base_BEFORE_CALL_3|)))) (<= 0 |#NULL.offset|) (<= 0 |#StackHeapBarrier|))' at error location [2021-11-23 03:18:17,974 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:18:17,974 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-23 03:18:17,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 33 [2021-11-23 03:18:17,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388007654] [2021-11-23 03:18:17,975 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-23 03:18:17,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-23 03:18:17,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:18:17,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-23 03:18:17,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=200, Invalid=2255, Unknown=3, NotChecked=194, Total=2652 [2021-11-23 03:18:17,977 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) [2021-11-23 03:18:20,145 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 [2021-11-23 03:18:22,049 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 [2021-11-23 03:18:24,051 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 [2021-11-23 03:18:26,288 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 [2021-11-23 03:18:26,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:18:26,809 INFO L93 Difference]: Finished difference Result 303 states and 337 transitions. [2021-11-23 03:18:26,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-23 03:18:26,810 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 [2021-11-23 03:18:26,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:18:26,811 INFO L225 Difference]: With dead ends: 303 [2021-11-23 03:18:26,811 INFO L226 Difference]: Without dead ends: 303 [2021-11-23 03:18:26,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 91 SyntacticMatches, 5 SemanticMatches, 62 ConstructedPredicates, 6 IntricatePredicates, 0 DeprecatedPredicates, 841 ImplicationChecksByTransitivity, 19.3s TimeCoverageRelationStatistics Valid=305, Invalid=3018, Unknown=7, NotChecked=702, Total=4032 [2021-11-23 03:18:26,813 INFO L933 BasicCegarLoop]: 184 mSDtfsCounter, 34 mSDsluCounter, 3184 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 3228 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 681 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:18:26,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 3228 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 601 Invalid, 0 Unknown, 681 Unchecked, 0.5s Time] [2021-11-23 03:18:26,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-11-23 03:18:26,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 303. [2021-11-23 03:18:26,818 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) [2021-11-23 03:18:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 337 transitions. [2021-11-23 03:18:26,819 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 337 transitions. Word has length 44 [2021-11-23 03:18:26,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:18:26,820 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 337 transitions. [2021-11-23 03:18:26,820 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) [2021-11-23 03:18:26,820 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 337 transitions. [2021-11-23 03:18:26,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:18:26,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:18:26,821 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] [2021-11-23 03:18:26,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-23 03:18:27,036 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-11-23 03:18:27,037 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr73REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:18:27,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:18:27,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1904378488, now seen corresponding path program 1 times [2021-11-23 03:18:27,037 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:18:27,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78460053] [2021-11-23 03:18:27,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:18:27,037 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:18:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:18:27,189 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:18:27,190 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:18:27,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78460053] [2021-11-23 03:18:27,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78460053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:18:27,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:18:27,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-23 03:18:27,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667481547] [2021-11-23 03:18:27,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:18:27,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 03:18:27,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:18:27,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 03:18:27,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-11-23 03:18:27,192 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) [2021-11-23 03:18:27,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:18:27,733 INFO L93 Difference]: Finished difference Result 323 states and 357 transitions. [2021-11-23 03:18:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 03:18:27,734 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 [2021-11-23 03:18:27,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:18:27,735 INFO L225 Difference]: With dead ends: 323 [2021-11-23 03:18:27,735 INFO L226 Difference]: Without dead ends: 323 [2021-11-23 03:18:27,736 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 [2021-11-23 03:18:27,737 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 [2021-11-23 03:18:27,737 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] [2021-11-23 03:18:27,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2021-11-23 03:18:27,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 302. [2021-11-23 03:18:27,743 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) [2021-11-23 03:18:27,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 335 transitions. [2021-11-23 03:18:27,744 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 335 transitions. Word has length 44 [2021-11-23 03:18:27,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:18:27,745 INFO L470 AbstractCegarLoop]: Abstraction has 302 states and 335 transitions. [2021-11-23 03:18:27,745 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) [2021-11-23 03:18:27,745 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 335 transitions. [2021-11-23 03:18:27,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:18:27,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:18:27,746 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] [2021-11-23 03:18:27,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-11-23 03:18:27,747 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr26REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:18:27,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:18:27,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115697, now seen corresponding path program 1 times [2021-11-23 03:18:27,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:18:27,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186017251] [2021-11-23 03:18:27,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:18:27,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:18:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:18:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:18:28,463 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:18:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186017251] [2021-11-23 03:18:28,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186017251] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:18:28,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861246815] [2021-11-23 03:18:28,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:18:28,464 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:18:28,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:18:28,468 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:18:28,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 03:18:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:18:28,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 51 conjunts are in the unsatisfiable core [2021-11-23 03:18:28,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:18:28,568 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 [2021-11-23 03:18:28,603 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:28,603 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 [2021-11-23 03:18:28,641 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 [2021-11-23 03:18:28,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:28,684 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 [2021-11-23 03:18:28,759 INFO L354 Elim1Store]: treesize reduction 48, result has 36.0 percent of original size [2021-11-23 03:18:28,759 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 [2021-11-23 03:18:28,820 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 [2021-11-23 03:18:28,897 INFO L354 Elim1Store]: treesize reduction 27, result has 20.6 percent of original size [2021-11-23 03:18:28,898 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 [2021-11-23 03:18:28,935 INFO L354 Elim1Store]: treesize reduction 90, result has 28.6 percent of original size [2021-11-23 03:18:28,936 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 [2021-11-23 03:18:29,047 INFO L354 Elim1Store]: treesize reduction 37, result has 15.9 percent of original size [2021-11-23 03:18:29,048 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 [2021-11-23 03:18:29,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:29,199 INFO L354 Elim1Store]: treesize reduction 61, result has 10.3 percent of original size [2021-11-23 03:18:29,199 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 [2021-11-23 03:18:29,234 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 [2021-11-23 03:18:30,256 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 [2021-11-23 03:18:30,761 INFO L354 Elim1Store]: treesize reduction 41, result has 8.9 percent of original size [2021-11-23 03:18:30,764 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 [2021-11-23 03:18:30,859 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:18:30,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:18:44,538 WARN L227 SmtUtils]: Spent 6.66s on a formula simplification that was a NOOP. DAG size: 1836 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 03:18:44,592 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-11-23 03:18:44,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [685143110] [2021-11-23 03:18:44,594 INFO L159 IcfgInterpreter]: Started Sifa with 36 locations of interest [2021-11-23 03:18:44,595 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:18:44,595 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:18:44,595 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:18:44,596 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:18:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,649 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 [2021-11-23 03:18:44,673 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 [2021-11-23 03:18:44,680 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 [2021-11-23 03:18:44,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,688 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 [2021-11-23 03:18:44,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,718 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 [2021-11-23 03:18:44,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,727 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 [2021-11-23 03:18:44,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,736 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 [2021-11-23 03:18:44,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 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 [2021-11-23 03:18:44,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,762 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 [2021-11-23 03:18:44,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,771 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 [2021-11-23 03:18:44,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,781 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 [2021-11-23 03:18:44,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,814 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 [2021-11-23 03:18:44,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,828 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 [2021-11-23 03:18:44,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,838 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 [2021-11-23 03:18:44,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,878 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 53 treesize of output 56 [2021-11-23 03:18:44,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,933 INFO L354 Elim1Store]: treesize reduction 86, result has 18.1 percent of original size [2021-11-23 03:18:44,935 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 [2021-11-23 03:18:44,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,958 INFO L354 Elim1Store]: treesize reduction 103, result has 14.2 percent of original size [2021-11-23 03:18:44,958 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 [2021-11-23 03:18:44,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:44,986 INFO L354 Elim1Store]: treesize reduction 86, result has 18.1 percent of original size [2021-11-23 03:18:44,986 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 [2021-11-23 03:18:45,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,057 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-23 03:18:45,057 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 [2021-11-23 03:18:45,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,069 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,100 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-23 03:18:45,101 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 [2021-11-23 03:18:45,188 INFO L354 Elim1Store]: treesize reduction 170, result has 15.0 percent of original size [2021-11-23 03:18:45,189 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 251 treesize of output 263 [2021-11-23 03:18:45,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,199 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,210 INFO L354 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2021-11-23 03:18:45,210 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 243 treesize of output 240 [2021-11-23 03:18:45,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,275 INFO L354 Elim1Store]: treesize reduction 72, result has 23.4 percent of original size [2021-11-23 03:18:45,276 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 [2021-11-23 03:18:45,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,291 INFO L354 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2021-11-23 03:18:45,292 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 [2021-11-23 03:18:45,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,334 INFO L354 Elim1Store]: treesize reduction 92, result has 22.0 percent of original size [2021-11-23 03:18:45,334 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 [2021-11-23 03:18:45,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,396 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,441 INFO L354 Elim1Store]: treesize reduction 174, result has 8.9 percent of original size [2021-11-23 03:18:45,442 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 525 treesize of output 487 [2021-11-23 03:18:45,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,453 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,488 INFO L354 Elim1Store]: treesize reduction 80, result has 33.9 percent of original size [2021-11-23 03:18:45,489 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 [2021-11-23 03:18:45,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:45,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,502 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:45,547 INFO L354 Elim1Store]: treesize reduction 286, result has 9.2 percent of original size [2021-11-23 03:18:45,548 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 634 treesize of output 637 [2021-11-23 03:18:45,932 INFO L354 Elim1Store]: treesize reduction 352, result has 17.2 percent of original size [2021-11-23 03:18:45,933 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 1434 treesize of output 1415 [2021-11-23 03:18:46,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:46,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:46,786 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:46,921 INFO L354 Elim1Store]: treesize reduction 398, result has 12.7 percent of original size [2021-11-23 03:18:46,921 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 2630 treesize of output 1521 [2021-11-23 03:18:46,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:46,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:46,947 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:47,071 INFO L354 Elim1Store]: treesize reduction 370, result has 13.1 percent of original size [2021-11-23 03:18:47,072 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 2609 treesize of output 2087 [2021-11-23 03:18:47,134 INFO L354 Elim1Store]: treesize reduction 160, result has 13.5 percent of original size [2021-11-23 03:18:47,134 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 2588 treesize of output 2371 [2021-11-23 03:18:47,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:47,535 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:47,538 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:47,719 INFO L354 Elim1Store]: treesize reduction 494, result has 9.0 percent of original size [2021-11-23 03:18:47,719 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 2741 treesize of output 1588 [2021-11-23 03:18:47,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:47,744 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:47,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:47,746 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:47,860 INFO L354 Elim1Store]: treesize reduction 464, result has 9.2 percent of original size [2021-11-23 03:18:47,860 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 2722 treesize of output 2180 [2021-11-23 03:18:48,057 INFO L354 Elim1Store]: treesize reduction 472, result has 14.8 percent of original size [2021-11-23 03:18:48,058 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 2703 treesize of output 2627 [2021-11-23 03:18:48,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:48,082 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:48,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:48,142 INFO L354 Elim1Store]: treesize reduction 184, result has 24.9 percent of original size [2021-11-23 03:18:48,142 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 2707 treesize of output 2521 [2021-11-23 03:18:50,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:50,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:50,013 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:50,174 INFO L354 Elim1Store]: treesize reduction 484, result has 11.8 percent of original size [2021-11-23 03:18:50,175 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 5726 treesize of output 3204 [2021-11-23 03:18:50,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:50,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:50,214 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:50,375 INFO L354 Elim1Store]: treesize reduction 454, result has 12.2 percent of original size [2021-11-23 03:18:50,376 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 26 case distinctions, treesize of input 5685 treesize of output 4540 [2021-11-23 03:18:50,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:50,415 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:18:50,474 INFO L354 Elim1Store]: treesize reduction 208, result has 10.7 percent of original size [2021-11-23 03:18:50,475 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 5644 treesize of output 5168 [2021-11-23 03:18:52,115 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 [2021-11-23 03:18:52,120 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 [2021-11-23 03:18:52,125 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 [2021-11-23 03:18:52,158 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:52,158 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 [2021-11-23 03:18:52,165 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 [2021-11-23 03:18:52,181 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 [2021-11-23 03:18:52,190 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-23 03:18:52,198 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 [2021-11-23 03:18:52,215 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 [2021-11-23 03:18:52,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:52,223 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 23 [2021-11-23 03:18:52,259 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:18:52,259 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 [2021-11-23 03:18:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:52,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 [2021-11-23 03:18:52,274 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 [2021-11-23 03:18:52,291 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 [2021-11-23 03:18:52,299 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 [2021-11-23 03:18:52,306 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 [2021-11-23 03:18:52,317 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 [2021-11-23 03:18:52,321 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 19 treesize of output 1 [2021-11-23 03:18:52,325 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 [2021-11-23 03:18:55,138 INFO L354 Elim1Store]: treesize reduction 46, result has 37.8 percent of original size [2021-11-23 03:18:55,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 219 treesize of output 239 [2021-11-23 03:18:56,057 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:18:56,066 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:18:56,083 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:18:56,123 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:18:56,135 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:18:56,156 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 12 [2021-11-23 03:18:56,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:56,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:18:56,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:56,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:18:56,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:56,279 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2021-11-23 03:18:56,359 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:56,359 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 [2021-11-23 03:18:56,396 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:18:56,396 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 [2021-11-23 03:18:56,429 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:18:56,429 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 1 [2021-11-23 03:18:56,676 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-23 03:18:56,676 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 1124 treesize of output 1031 [2021-11-23 03:18:56,715 INFO L354 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2021-11-23 03:18:56,715 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 1072 treesize of output 1057 [2021-11-23 03:18:57,193 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 [2021-11-23 03:18:57,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:57,415 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 [2021-11-23 03:18:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:57,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:57,437 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 2232 treesize of output 2078 [2021-11-23 03:18:57,548 INFO L354 Elim1Store]: treesize reduction 84, result has 28.2 percent of original size [2021-11-23 03:18:57,549 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 2231 treesize of output 2170 [2021-11-23 03:18:57,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:18:57,616 INFO L354 Elim1Store]: treesize reduction 47, result has 26.6 percent of original size [2021-11-23 03:18:57,617 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 2162 treesize of output 2127 [2021-11-23 03:19:01,238 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,263 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,293 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,311 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,340 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,361 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,415 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,432 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,452 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,546 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,590 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,607 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,644 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,668 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,682 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,715 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:19:01,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:01,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:01,936 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:19:01,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 29 [2021-11-23 03:19:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:01,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:01,981 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:19:01,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:19:02,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,024 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:19:02,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:19:02,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,072 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:19:02,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:19:02,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,119 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:19:02,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:19:02,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:19:02,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,179 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:19:02,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:19:02,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,312 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:19:02,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,351 INFO L354 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2021-11-23 03:19:02,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 1 [2021-11-23 03:19:02,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 25 [2021-11-23 03:19:02,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:02,425 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 20 [2021-11-23 03:19:02,689 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:19:02,690 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 [2021-11-23 03:19:02,746 INFO L354 Elim1Store]: treesize reduction 54, result has 1.8 percent of original size [2021-11-23 03:19:02,746 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 1 [2021-11-23 03:19:03,260 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:19:07,756 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '30462#(and (<= 0 |#NULL.base|) (<= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|) (= (select |#valid| |ULTIMATE.start_inspect_before_~shape#1.base|) 1) (= |ULTIMATE.start_inspect_before_#t~mem29#1.offset| (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (= |ULTIMATE.start_inspect_before_#t~mem29#1.base| (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|)) (<= 0 |ULTIMATE.start_main_~item~0#1.offset|) (<= 0 |ULTIMATE.start_main_~node~1#1.offset|) (<= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= 0 |ULTIMATE.start_inspect_before_#in~shape#1.offset|) (or (not (= (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0)) (not (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) |ULTIMATE.start_inspect_before_~shape#1.offset|) 0))) (= (select (select |#memory_$Pointer$.base| |ULTIMATE.start_inspect_before_~shape#1.base|) (+ 4 |ULTIMATE.start_inspect_before_~shape#1.offset|)) 0) (<= |ULTIMATE.start_main_~item~0#1.offset| 0) (<= 0 |ULTIMATE.start_main_~data~0#1.offset|) (<= |#NULL.base| 0) (or (not (= 0 |ULTIMATE.start_inspect_before_~shape#1.offset|)) (not (= |ULTIMATE.start_inspect_before_~shape#1.base| 0))) (<= 0 |#NULL.offset|) (<= |ULTIMATE.start_main_~data~0#1.offset| 0) (<= |ULTIMATE.start_inspect_before_#in~shape#1.offset| 0) (<= 0 |#StackHeapBarrier|) (not (= (select |#valid| |ULTIMATE.start_inspect_before_#t~mem29#1.base|) 1)) (<= (+ 8 |ULTIMATE.start_inspect_before_~shape#1.offset|) (select |#length| |ULTIMATE.start_inspect_before_~shape#1.base|)) (<= |ULTIMATE.start_main_~node~1#1.offset| 0))' at error location [2021-11-23 03:19:07,756 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2021-11-23 03:19:07,756 INFO L186 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2021-11-23 03:19:07,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2021-11-23 03:19:07,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381980133] [2021-11-23 03:19:07,756 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2021-11-23 03:19:07,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-23 03:19:07,757 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:19:07,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-23 03:19:07,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=348, Invalid=4071, Unknown=3, NotChecked=0, Total=4422 [2021-11-23 03:19:07,759 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) [2021-11-23 03:19:10,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:19:10,727 INFO L93 Difference]: Finished difference Result 526 states and 579 transitions. [2021-11-23 03:19:10,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-23 03:19:10,728 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 [2021-11-23 03:19:10,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:19:10,730 INFO L225 Difference]: With dead ends: 526 [2021-11-23 03:19:10,731 INFO L226 Difference]: Without dead ends: 526 [2021-11-23 03:19:10,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 82 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=710, Invalid=6259, Unknown=3, NotChecked=0, Total=6972 [2021-11-23 03:19:10,734 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 1731 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 2024 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1733 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:19:10,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1733 Valid, 1908 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2024 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 03:19:10,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2021-11-23 03:19:10,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 303. [2021-11-23 03:19:10,741 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) [2021-11-23 03:19:10,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 337 transitions. [2021-11-23 03:19:10,743 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 337 transitions. Word has length 45 [2021-11-23 03:19:10,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:19:10,743 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 337 transitions. [2021-11-23 03:19:10,744 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) [2021-11-23 03:19:10,744 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 337 transitions. [2021-11-23 03:19:10,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:19:10,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:19:10,745 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] [2021-11-23 03:19:10,775 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 03:19:10,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-11-23 03:19:10,969 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr27REQUIRES_VIOLATION === [failErr0ASSERT_VIOLATIONMEMORY_LEAK, merge_single_nodeErr0REQUIRES_VIOLATION, merge_single_nodeErr1REQUIRES_VIOLATION, merge_single_nodeErr2REQUIRES_VIOLATION (and 101 more)] === [2021-11-23 03:19:10,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:19:10,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1000115698, now seen corresponding path program 1 times [2021-11-23 03:19:10,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:19:10,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476700062] [2021-11-23 03:19:10,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:19:10,970 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:19:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:19:11,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:11,804 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:19:11,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476700062] [2021-11-23 03:19:11,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476700062] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-23 03:19:11,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [913793994] [2021-11-23 03:19:11,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:19:11,804 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:19:11,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:19:11,805 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:19:11,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_815209f0-aa4d-472f-8027-7403ec002558/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-23 03:19:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:19:11,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-23 03:19:11,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:19:11,916 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 [2021-11-23 03:19:11,957 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 [2021-11-23 03:19:11,969 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-23 03:19:11,969 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 [2021-11-23 03:19:12,013 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 [2021-11-23 03:19:12,019 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 [2021-11-23 03:19:12,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,062 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 23 treesize of output 22 [2021-11-23 03:19:12,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,073 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 [2021-11-23 03:19:12,145 INFO L354 Elim1Store]: treesize reduction 52, result has 22.4 percent of original size [2021-11-23 03:19:12,145 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 [2021-11-23 03:19:12,170 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:19:12,171 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 [2021-11-23 03:19:12,246 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 [2021-11-23 03:19:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,257 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 [2021-11-23 03:19:12,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,336 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 [2021-11-23 03:19:12,361 INFO L354 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2021-11-23 03:19:12,361 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 [2021-11-23 03:19:12,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,372 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 [2021-11-23 03:19:12,386 INFO L354 Elim1Store]: treesize reduction 51, result has 15.0 percent of original size [2021-11-23 03:19:12,387 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 3 case distinctions, treesize of input 33 treesize of output 41 [2021-11-23 03:19:12,491 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-23 03:19:12,491 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 [2021-11-23 03:19:12,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,508 INFO L354 Elim1Store]: treesize reduction 41, result has 21.2 percent of original size [2021-11-23 03:19:12,509 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 [2021-11-23 03:19:12,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,617 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-23 03:19:12,618 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 [2021-11-23 03:19:12,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:19:12,624 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:19:12,634 INFO L354 Elim1Store]: treesize reduction 79, result has 14.1 percent of original size [2021-11-23 03:19:12,634 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 [2021-11-23 03:19:14,366 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-23 03:19:14,366 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 [2021-11-23 03:19:14,384 INFO L354 Elim1Store]: treesize reduction 82, result has 3.5 percent of original size [2021-11-23 03:19:14,384 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 [2021-11-23 03:19:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:19:14,465 INFO L328 TraceCheckSpWp]: Computing backward predicates...