./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/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_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:40:23,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:40:23,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:40:23,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:40:23,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:40:23,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:40:23,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:40:23,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:40:23,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:40:23,668 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:40:23,669 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:40:23,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:40:23,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:40:23,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:40:23,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:40:23,686 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:40:23,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:40:23,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:40:23,691 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:40:23,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:40:23,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:40:23,698 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:40:23,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:40:23,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:40:23,714 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:40:23,714 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:40:23,715 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:40:23,717 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:40:23,717 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:40:23,719 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:40:23,719 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:40:23,720 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:40:23,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:40:23,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:40:23,726 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:40:23,726 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:40:23,727 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:40:23,727 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:40:23,727 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:40:23,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:40:23,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:40:23,730 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:40:23,781 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:40:23,782 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:40:23,783 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:40:23,783 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:40:23,784 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:40:23,784 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:40:23,784 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:40:23,785 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:40:23,785 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:40:23,785 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:40:23,786 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:40:23,787 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:40:23,787 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:40:23,787 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:40:23,787 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:40:23,788 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:40:23,788 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:40:23,788 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:40:23,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:40:23,789 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:40:23,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:40:23,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:40:23,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:40:23,790 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:40:23,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:40:23,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:40:23,793 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:40:23,793 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:40:23,793 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:40:23,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:40:23,794 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:40:23,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:40:23,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:40:23,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:40:23,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:40:23,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:40:23,795 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:40:23,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:40:23,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:40:23,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:40:23,796 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:40:23,796 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_08363f51-14b6-46f9-9e73-7c30a8795e77/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a74358cfc3b57ddf641c2843362a5594690e287c76148ee1838c9104dbe09de1 [2021-11-23 03:40:24,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:40:24,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:40:24,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:40:24,147 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:40:24,148 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:40:24,166 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2021-11-23 03:40:24,253 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/data/2fe8ca70b/c23052f1d1ec473f973157b8167d4d30/FLAGc449df559 [2021-11-23 03:40:24,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:40:24,955 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i [2021-11-23 03:40:24,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/data/2fe8ca70b/c23052f1d1ec473f973157b8167d4d30/FLAGc449df559 [2021-11-23 03:40:25,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/data/2fe8ca70b/c23052f1d1ec473f973157b8167d4d30 [2021-11-23 03:40:25,141 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:40:25,143 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:40:25,145 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:40:25,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:40:25,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:40:25,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:25" (1/1) ... [2021-11-23 03:40:25,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4455c560 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:25, skipping insertion in model container [2021-11-23 03:40:25,151 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:40:25" (1/1) ... [2021-11-23 03:40:25,165 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:40:25,244 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:40:25,783 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_08363f51-14b6-46f9-9e73-7c30a8795e77/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2021-11-23 03:40:25,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:40:25,940 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:40:25,995 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_08363f51-14b6-46f9-9e73-7c30a8795e77/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test1-1.i[33021,33034] [2021-11-23 03:40:26,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:40:26,133 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:40:26,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26 WrapperNode [2021-11-23 03:40:26,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:40:26,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:40:26,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:40:26,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:40:26,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,278 INFO L137 Inliner]: procedures = 177, calls = 186, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 621 [2021-11-23 03:40:26,279 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:40:26,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:40:26,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:40:26,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:40:26,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,388 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,409 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:40:26,410 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:40:26,410 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:40:26,410 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:40:26,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (1/1) ... [2021-11-23 03:40:26,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:40:26,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:26,478 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:40:26,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:40:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:40:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:40:26,534 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:40:26,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:40:26,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:40:26,535 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:40:26,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:40:26,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:40:26,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:40:26,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:40:26,759 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:40:26,761 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:40:27,513 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:40:27,855 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:40:27,855 INFO L301 CfgBuilder]: Removed 31 assume(true) statements. [2021-11-23 03:40:27,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:27 BoogieIcfgContainer [2021-11-23 03:40:27,858 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:40:27,860 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:40:27,860 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:40:27,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:40:27,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:40:25" (1/3) ... [2021-11-23 03:40:27,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fa2008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:27, skipping insertion in model container [2021-11-23 03:40:27,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:40:26" (2/3) ... [2021-11-23 03:40:27,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fa2008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:40:27, skipping insertion in model container [2021-11-23 03:40:27,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:40:27" (3/3) ... [2021-11-23 03:40:27,867 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test1-1.i [2021-11-23 03:40:27,880 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:40:27,880 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 03:40:27,946 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:40:27,965 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 03:40:27,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 03:40:27,989 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:40:27,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:40:27,994 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:27,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:27,995 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:28,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1633489720, now seen corresponding path program 1 times [2021-11-23 03:40:28,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:28,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470271140] [2021-11-23 03:40:28,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:28,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:28,252 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 03:40:28,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:28,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470271140] [2021-11-23 03:40:28,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470271140] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:28,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:40:28,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:40:28,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800669400] [2021-11-23 03:40:28,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:28,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:40:28,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:28,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:40:28,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:40:28,313 INFO L87 Difference]: Start difference. First operand has 81 states, 64 states have (on average 1.78125) internal successors, (114), 75 states have internal predecessors, (114), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:40:29,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:29,889 INFO L93 Difference]: Finished difference Result 209 states and 376 transitions. [2021-11-23 03:40:29,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:40:29,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 03:40:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:29,919 INFO L225 Difference]: With dead ends: 209 [2021-11-23 03:40:29,920 INFO L226 Difference]: Without dead ends: 128 [2021-11-23 03:40:29,924 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 03:40:29,928 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 49 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:29,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [52 Valid, 195 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 03:40:29,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-23 03:40:29,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 81. [2021-11-23 03:40:29,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 65 states have (on average 1.2769230769230768) internal successors, (83), 75 states have internal predecessors, (83), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:40:29,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 109 transitions. [2021-11-23 03:40:29,988 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 109 transitions. Word has length 8 [2021-11-23 03:40:29,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:29,989 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 109 transitions. [2021-11-23 03:40:29,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:40:29,989 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 109 transitions. [2021-11-23 03:40:29,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-11-23 03:40:29,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:29,993 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:29,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:40:29,993 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:29,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:29,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1995011669, now seen corresponding path program 1 times [2021-11-23 03:40:29,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:29,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539236418] [2021-11-23 03:40:29,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:29,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:30,016 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:40:30,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [103017589] [2021-11-23 03:40:30,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:30,017 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:30,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:30,023 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:40:30,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:40:30,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:30,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:40:30,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:40:30,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:30,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:40:30,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:40:30,540 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:30,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539236418] [2021-11-23 03:40:30,541 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:40:30,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103017589] [2021-11-23 03:40:30,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103017589] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:40:30,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2104851760] [2021-11-23 03:40:30,608 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2021-11-23 03:40:30,608 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:40:30,614 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:40:30,621 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:40:30,622 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:40:30,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:30,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:30,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:30,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:30,855 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:40:30,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-23 03:40:30,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:30,879 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:30,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:30,898 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:40:30,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 03:40:30,971 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:40:30,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:40:31,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:31,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:31,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:40:31,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:40:31,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:40:31,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:40:31,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:31,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:32,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:32,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:32,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:32,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:32,023 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:40:33,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2104851760] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:33,218 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 03:40:33,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [3, 3] total 11 [2021-11-23 03:40:33,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871731368] [2021-11-23 03:40:33,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:33,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 03:40:33,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:33,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 03:40:33,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:40:33,223 INFO L87 Difference]: Start difference. First operand 81 states and 109 transitions. Second operand has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:40:36,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:36,333 INFO L93 Difference]: Finished difference Result 173 states and 232 transitions. [2021-11-23 03:40:36,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 03:40:36,341 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-11-23 03:40:36,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:36,343 INFO L225 Difference]: With dead ends: 173 [2021-11-23 03:40:36,343 INFO L226 Difference]: Without dead ends: 94 [2021-11-23 03:40:36,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 79 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=63, Invalid=69, Unknown=0, NotChecked=0, Total=132 [2021-11-23 03:40:36,346 INFO L933 BasicCegarLoop]: 93 mSDtfsCounter, 10 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:36,347 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 329 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-23 03:40:36,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-11-23 03:40:36,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 91. [2021-11-23 03:40:36,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 75 states have (on average 1.24) internal successors, (93), 85 states have internal predecessors, (93), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-23 03:40:36,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2021-11-23 03:40:36,366 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 31 [2021-11-23 03:40:36,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:36,366 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2021-11-23 03:40:36,367 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.75) internal successors, (30), 7 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:40:36,367 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2021-11-23 03:40:36,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-23 03:40:36,369 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:36,370 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:36,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 03:40:36,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-23 03:40:36,583 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:36,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1705819700, now seen corresponding path program 1 times [2021-11-23 03:40:36,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:36,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921532863] [2021-11-23 03:40:36,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:36,584 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:36,609 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:40:36,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985712561] [2021-11-23 03:40:36,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:36,619 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:36,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:36,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:40:36,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:40:36,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:36,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:40:36,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:40:37,026 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:40:37,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:40:37,167 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:40:37,167 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:37,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921532863] [2021-11-23 03:40:37,167 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:40:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985712561] [2021-11-23 03:40:37,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985712561] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:40:37,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1273091377] [2021-11-23 03:40:37,172 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 03:40:37,172 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:40:37,173 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:40:37,173 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:40:37,173 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:40:37,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:37,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,227 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:37,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,240 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:40:37,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 43 [2021-11-23 03:40:37,281 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:40:37,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:40:37,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:37,307 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 03:40:37,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:37,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:40:37,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:40:37,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:37,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:37,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-23 03:40:37,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:37,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:40:37,830 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:40:37,831 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 3 case distinctions, treesize of input 117 treesize of output 125 [2021-11-23 03:40:37,915 INFO L354 Elim1Store]: treesize reduction 160, result has 11.6 percent of original size [2021-11-23 03:40:37,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 116 treesize of output 119 [2021-11-23 03:40:37,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:40:37,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:37,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:40:38,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:40:38,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:40:38,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:38,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,644 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-23 03:40:38,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:40:38,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:38,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:38,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:40:38,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:40:38,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:38,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:40:38,945 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 03:40:38,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 03:40:38,994 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:40:38,994 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 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 03:40:39,050 INFO L197 IcfgInterpreter]: Interpreting procedure #Ultimate.C_memset with input of size 101 for LOIs [2021-11-23 03:40:39,121 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-23 03:40:41,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1273091377] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:40:41,252 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 03:40:41,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [4, 4] total 17 [2021-11-23 03:40:41,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631128747] [2021-11-23 03:40:41,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:40:41,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 03:40:41,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:40:41,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 03:40:41,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:40:41,256 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:40:44,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:40:44,385 INFO L93 Difference]: Finished difference Result 175 states and 234 transitions. [2021-11-23 03:40:44,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-23 03:40:44,403 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 44 [2021-11-23 03:40:44,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:40:44,405 INFO L225 Difference]: With dead ends: 175 [2021-11-23 03:40:44,406 INFO L226 Difference]: Without dead ends: 96 [2021-11-23 03:40:44,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 111 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=100, Invalid=172, Unknown=0, NotChecked=0, Total=272 [2021-11-23 03:40:44,408 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 8 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 53 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:40:44,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 326 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 105 Invalid, 0 Unknown, 53 Unchecked, 3.1s Time] [2021-11-23 03:40:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-11-23 03:40:44,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-11-23 03:40:44,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 79 states have (on average 1.2278481012658229) internal successors, (97), 89 states have internal predecessors, (97), 14 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (14), 4 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-23 03:40:44,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2021-11-23 03:40:44,452 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 44 [2021-11-23 03:40:44,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:40:44,452 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2021-11-23 03:40:44,453 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0833333333333335) internal successors, (37), 11 states have internal predecessors, (37), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-23 03:40:44,453 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2021-11-23 03:40:44,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-23 03:40:44,455 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:40:44,456 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:40:44,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:40:44,670 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:44,671 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:40:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:40:44,671 INFO L85 PathProgramCache]: Analyzing trace with hash -336880136, now seen corresponding path program 1 times [2021-11-23 03:40:44,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:40:44,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933575463] [2021-11-23 03:40:44,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:44,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:40:44,709 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:40:44,722 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [521171593] [2021-11-23 03:40:44,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:40:44,723 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:40:44,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:40:44,743 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:40:44,762 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08363f51-14b6-46f9-9e73-7c30a8795e77/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:40:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:40:44,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:40:44,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:40:45,149 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:40:45,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:40:45,304 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:40:45,305 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:40:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933575463] [2021-11-23 03:40:45,305 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:40:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [521171593] [2021-11-23 03:40:45,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [521171593] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:40:45,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1791097597] [2021-11-23 03:40:45,309 INFO L159 IcfgInterpreter]: Started Sifa with 41 locations of interest [2021-11-23 03:40:45,309 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:40:45,310 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:40:45,310 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:40:45,310 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:40:45,383 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:40:45,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-23 03:40:45,395 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 03:40:45,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:45,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,424 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:45,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 39 [2021-11-23 03:40:45,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-23 03:40:45,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-23 03:40:45,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-23 03:40:45,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:45,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-23 03:40:45,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-23 03:40:45,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:40:45,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:45,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-23 03:40:45,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:45,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-23 03:40:46,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 105 [2021-11-23 03:40:46,127 INFO L354 Elim1Store]: treesize reduction 130, result has 28.2 percent of original size [2021-11-23 03:40:46,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 117 treesize of output 150 [2021-11-23 03:40:46,183 INFO L354 Elim1Store]: treesize reduction 78, result has 17.0 percent of original size [2021-11-23 03:40:46,184 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 3 case distinctions, treesize of input 135 treesize of output 143 [2021-11-23 03:40:46,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-23 03:40:46,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:46,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:46,342 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 03:40:46,384 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:40:46,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 98 treesize of output 97 [2021-11-23 03:40:46,417 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:40:46,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 94 treesize of output 93 [2021-11-23 03:40:46,442 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:40:46,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 90 treesize of output 89 [2021-11-23 03:40:46,478 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 03:40:46,484 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 14 treesize of output 10 [2021-11-23 03:40:46,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-23 03:40:46,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 03:40:46,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:40:46,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:40:46,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-23 03:40:46,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2021-11-23 03:40:46,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:46,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-23 03:40:57,109 WARN L227 SmtUtils]: Spent 10.22s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:40:57,110 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:40:57,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2853 treesize of output 2330 [2021-11-23 03:40:57,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:41:09,132 WARN L227 SmtUtils]: Spent 11.98s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:41:09,133 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:41:09,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2954 treesize of output 2672 [2021-11-23 03:41:21,160 WARN L227 SmtUtils]: Spent 11.89s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:41:21,161 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-23 03:41:21,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2922 treesize of output 2692 [2021-11-23 03:41:22,933 INFO L354 Elim1Store]: treesize reduction 126, result has 25.0 percent of original size [2021-11-23 03:41:22,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 25960 treesize of output 25988 [2021-11-23 03:41:23,593 INFO L354 Elim1Store]: treesize reduction 80, result has 20.8 percent of original size [2021-11-23 03:41:23,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 25970 treesize of output 25981 [2021-11-23 03:41:24,305 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:41:24,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:41:24,503 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-23 03:41:24,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-23 03:41:24,700 INFO L244 Elim1Store]: Index analysis took 102 ms [2021-11-23 03:41:24,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:41:25,062 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:41:25,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61