./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.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_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/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_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/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_321f3db9-372d-46c7-b19c-38216d5af5c0/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 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 03:38:34,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 03:38:34,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 03:38:34,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 03:38:34,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 03:38:34,572 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 03:38:34,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 03:38:34,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 03:38:34,578 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 03:38:34,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 03:38:34,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 03:38:34,582 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 03:38:34,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 03:38:34,584 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 03:38:34,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 03:38:34,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 03:38:34,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 03:38:34,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 03:38:34,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 03:38:34,595 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 03:38:34,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 03:38:34,599 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 03:38:34,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 03:38:34,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 03:38:34,605 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 03:38:34,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 03:38:34,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 03:38:34,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 03:38:34,608 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 03:38:34,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 03:38:34,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 03:38:34,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 03:38:34,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 03:38:34,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 03:38:34,623 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 03:38:34,623 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 03:38:34,624 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 03:38:34,625 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 03:38:34,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 03:38:34,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 03:38:34,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 03:38:34,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 03:38:34,676 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 03:38:34,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 03:38:34,677 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 03:38:34,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 03:38:34,678 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 03:38:34,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 03:38:34,679 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 03:38:34,679 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 03:38:34,679 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 03:38:34,680 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 03:38:34,680 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 03:38:34,681 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 03:38:34,681 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 03:38:34,681 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 03:38:34,681 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 03:38:34,682 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 03:38:34,682 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 03:38:34,682 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 03:38:34,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 03:38:34,683 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 03:38:34,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 03:38:34,683 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 03:38:34,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 03:38:34,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 03:38:34,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 03:38:34,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 03:38:34,686 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 03:38:34,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 03:38:34,686 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 03:38:34,686 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 03:38:34,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 03:38:34,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 03:38:34,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:34,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 03:38:34,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 03:38:34,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 03:38:34,688 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 03:38:34,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 03:38:34,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 03:38:34,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 03:38:34,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 03:38:34,689 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_321f3db9-372d-46c7-b19c-38216d5af5c0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 096e364e485b0e5279ae2fe39d9edab416c1da593e20bd1edd3d0a079c23fdc3 [2021-11-23 03:38:34,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 03:38:34,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 03:38:34,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 03:38:34,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 03:38:34,977 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 03:38:34,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2021-11-23 03:38:35,057 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/data/dd365e7bb/81381699c9664253b8fee9fa5defa32d/FLAGd80d5601c [2021-11-23 03:38:35,646 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 03:38:35,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i [2021-11-23 03:38:35,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/data/dd365e7bb/81381699c9664253b8fee9fa5defa32d/FLAGd80d5601c [2021-11-23 03:38:35,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/data/dd365e7bb/81381699c9664253b8fee9fa5defa32d [2021-11-23 03:38:35,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 03:38:35,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 03:38:35,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:35,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 03:38:35,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 03:38:35,915 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:35" (1/1) ... [2021-11-23 03:38:35,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7170696c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:35, skipping insertion in model container [2021-11-23 03:38:35,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:38:35" (1/1) ... [2021-11-23 03:38:35,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 03:38:35,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 03:38:36,404 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_321f3db9-372d-46c7-b19c-38216d5af5c0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2021-11-23 03:38:36,500 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_321f3db9-372d-46c7-b19c-38216d5af5c0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2021-11-23 03:38:36,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:36,525 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 03:38:36,554 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_321f3db9-372d-46c7-b19c-38216d5af5c0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[33021,33034] [2021-11-23 03:38:36,625 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_321f3db9-372d-46c7-b19c-38216d5af5c0/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test3-2.i[44590,44603] [2021-11-23 03:38:36,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 03:38:36,689 INFO L208 MainTranslator]: Completed translation [2021-11-23 03:38:36,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36 WrapperNode [2021-11-23 03:38:36,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 03:38:36,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:36,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 03:38:36,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 03:38:36,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,740 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,820 INFO L137 Inliner]: procedures = 177, calls = 336, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1181 [2021-11-23 03:38:36,820 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 03:38:36,821 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 03:38:36,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 03:38:36,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 03:38:36,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,857 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 03:38:36,959 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 03:38:36,959 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 03:38:36,959 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 03:38:36,960 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (1/1) ... [2021-11-23 03:38:36,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 03:38:36,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:37,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 03:38:37,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 03:38:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 03:38:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 03:38:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 03:38:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 03:38:37,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 03:38:37,069 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 03:38:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 03:38:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 03:38:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 03:38:37,070 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 03:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-23 03:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 03:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 03:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 03:38:37,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 03:38:37,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 03:38:37,396 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 03:38:37,398 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 03:38:38,537 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 03:38:38,985 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 03:38:38,985 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-23 03:38:38,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:38 BoogieIcfgContainer [2021-11-23 03:38:38,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 03:38:38,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 03:38:38,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 03:38:38,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 03:38:38,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:38:35" (1/3) ... [2021-11-23 03:38:38,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229d48bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:38, skipping insertion in model container [2021-11-23 03:38:38,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:38:36" (2/3) ... [2021-11-23 03:38:38,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@229d48bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:38:38, skipping insertion in model container [2021-11-23 03:38:38,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:38:38" (3/3) ... [2021-11-23 03:38:39,000 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test3-2.i [2021-11-23 03:38:39,006 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 03:38:39,006 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-23 03:38:39,065 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 03:38:39,101 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 03:38:39,101 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-23 03:38:39,131 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 03:38:39,136 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:39,137 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:39,137 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:39,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:39,143 INFO L85 PathProgramCache]: Analyzing trace with hash 2145808350, now seen corresponding path program 1 times [2021-11-23 03:38:39,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:39,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826338479] [2021-11-23 03:38:39,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:39,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:39,332 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 03:38:39,332 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:39,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826338479] [2021-11-23 03:38:39,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826338479] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:39,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:39,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:38:39,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654449846] [2021-11-23 03:38:39,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:39,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 03:38:39,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:39,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 03:38:39,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:38:39,372 INFO L87 Difference]: Start difference. First operand has 137 states, 124 states have (on average 1.7983870967741935) internal successors, (223), 131 states have internal predecessors, (223), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:38:39,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:39,904 INFO L93 Difference]: Finished difference Result 273 states and 482 transitions. [2021-11-23 03:38:39,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 03:38:39,911 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-23 03:38:39,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:39,922 INFO L225 Difference]: With dead ends: 273 [2021-11-23 03:38:39,922 INFO L226 Difference]: Without dead ends: 122 [2021-11-23 03:38:39,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 03:38:39,930 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:39,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 03:38:39,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-11-23 03:38:39,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2021-11-23 03:38:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 116 states have internal predecessors, (134), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:39,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2021-11-23 03:38:39,980 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 8 [2021-11-23 03:38:39,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:39,980 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2021-11-23 03:38:39,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:38:39,981 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2021-11-23 03:38:39,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 03:38:39,982 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:39,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:39,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 03:38:39,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:39,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:39,984 INFO L85 PathProgramCache]: Analyzing trace with hash 131240621, now seen corresponding path program 1 times [2021-11-23 03:38:39,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:39,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731713301] [2021-11-23 03:38:39,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:39,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:40,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:40,050 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 03:38:40,051 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:40,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731713301] [2021-11-23 03:38:40,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731713301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:40,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:40,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 03:38:40,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177642421] [2021-11-23 03:38:40,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:40,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:40,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:40,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:40,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:40,055 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:38:41,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:41,630 INFO L93 Difference]: Finished difference Result 258 states and 326 transitions. [2021-11-23 03:38:41,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:38:41,637 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-23 03:38:41,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:41,640 INFO L225 Difference]: With dead ends: 258 [2021-11-23 03:38:41,640 INFO L226 Difference]: Without dead ends: 189 [2021-11-23 03:38:41,641 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:41,643 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 73 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:41,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 359 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-23 03:38:41,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-11-23 03:38:41,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 124. [2021-11-23 03:38:41,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 112 states have (on average 1.2142857142857142) internal successors, (136), 118 states have internal predecessors, (136), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:41,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 152 transitions. [2021-11-23 03:38:41,666 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 152 transitions. Word has length 13 [2021-11-23 03:38:41,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:41,666 INFO L470 AbstractCegarLoop]: Abstraction has 124 states and 152 transitions. [2021-11-23 03:38:41,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 03:38:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 152 transitions. [2021-11-23 03:38:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-23 03:38:41,669 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:41,669 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:41,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 03:38:41,670 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:41,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:41,670 INFO L85 PathProgramCache]: Analyzing trace with hash 993801336, now seen corresponding path program 1 times [2021-11-23 03:38:41,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:41,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835702669] [2021-11-23 03:38:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:41,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:41,696 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:38:41,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [437913601] [2021-11-23 03:38:41,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:41,697 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:41,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:41,701 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:41,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 03:38:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:41,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:38:41,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:42,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 03:38:42,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:38:42,184 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:42,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835702669] [2021-11-23 03:38:42,184 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:38:42,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437913601] [2021-11-23 03:38:42,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437913601] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:42,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:42,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 03:38:42,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859270649] [2021-11-23 03:38:42,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:42,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 03:38:42,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:42,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 03:38:42,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 03:38:42,191 INFO L87 Difference]: Start difference. First operand 124 states and 152 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 03:38:42,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:42,880 INFO L93 Difference]: Finished difference Result 304 states and 377 transitions. [2021-11-23 03:38:42,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 03:38:42,887 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 37 [2021-11-23 03:38:42,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:42,888 INFO L225 Difference]: With dead ends: 304 [2021-11-23 03:38:42,889 INFO L226 Difference]: Without dead ends: 183 [2021-11-23 03:38:42,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 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 03:38:42,891 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 58 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:42,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 280 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 03:38:42,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2021-11-23 03:38:42,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2021-11-23 03:38:42,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 155 states have (on average 1.1935483870967742) internal successors, (185), 161 states have internal predecessors, (185), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:42,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 201 transitions. [2021-11-23 03:38:42,910 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 201 transitions. Word has length 37 [2021-11-23 03:38:42,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:42,910 INFO L470 AbstractCegarLoop]: Abstraction has 167 states and 201 transitions. [2021-11-23 03:38:42,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 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 03:38:42,911 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 201 transitions. [2021-11-23 03:38:42,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-23 03:38:42,912 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:42,913 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:42,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-23 03:38:43,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:43,126 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:43,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:43,126 INFO L85 PathProgramCache]: Analyzing trace with hash 237821332, now seen corresponding path program 1 times [2021-11-23 03:38:43,126 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:43,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515322099] [2021-11-23 03:38:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:43,127 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:43,145 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:38:43,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1732647307] [2021-11-23 03:38:43,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:43,146 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:43,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:43,147 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:43,150 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-23 03:38:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:43,367 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 03:38:43,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:43,478 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 11 treesize of output 7 [2021-11-23 03:38:43,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-23 03:38:43,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-23 03:38:43,516 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:38:43,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:43,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515322099] [2021-11-23 03:38:43,522 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:38:43,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732647307] [2021-11-23 03:38:43,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732647307] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:43,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:43,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:43,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136608705] [2021-11-23 03:38:43,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:43,524 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:43,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:43,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:43,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:43,525 INFO L87 Difference]: Start difference. First operand 167 states and 201 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:45,658 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 03:38:45,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:45,659 INFO L93 Difference]: Finished difference Result 231 states and 285 transitions. [2021-11-23 03:38:45,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:38:45,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 50 [2021-11-23 03:38:45,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:45,679 INFO L225 Difference]: With dead ends: 231 [2021-11-23 03:38:45,679 INFO L226 Difference]: Without dead ends: 212 [2021-11-23 03:38:45,679 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:45,680 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 58 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:45,681 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 354 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 03:38:45,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-11-23 03:38:45,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 169. [2021-11-23 03:38:45,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 157 states have (on average 1.1910828025477707) internal successors, (187), 163 states have internal predecessors, (187), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:45,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2021-11-23 03:38:45,701 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 50 [2021-11-23 03:38:45,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:45,701 INFO L470 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2021-11-23 03:38:45,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:45,702 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2021-11-23 03:38:45,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-23 03:38:45,704 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:45,704 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 03:38:45,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-23 03:38:45,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:45,930 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:45,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 375836451, now seen corresponding path program 1 times [2021-11-23 03:38:45,930 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:45,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272239468] [2021-11-23 03:38:45,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:45,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:45,949 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:38:45,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [392851589] [2021-11-23 03:38:45,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:45,955 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:45,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:45,959 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:45,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-23 03:38:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:46,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-23 03:38:46,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:46,349 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-23 03:38:46,349 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:38:46,350 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:46,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272239468] [2021-11-23 03:38:46,350 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:38:46,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [392851589] [2021-11-23 03:38:46,350 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [392851589] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:46,350 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:46,350 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:46,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391208659] [2021-11-23 03:38:46,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:46,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:46,351 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:46,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:46,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:46,352 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:47,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:47,135 INFO L93 Difference]: Finished difference Result 395 states and 492 transitions. [2021-11-23 03:38:47,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 03:38:47,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 57 [2021-11-23 03:38:47,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:47,138 INFO L225 Difference]: With dead ends: 395 [2021-11-23 03:38:47,138 INFO L226 Difference]: Without dead ends: 242 [2021-11-23 03:38:47,139 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:47,140 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 257 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:47,140 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [262 Valid, 296 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-23 03:38:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-11-23 03:38:47,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 214. [2021-11-23 03:38:47,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 202 states have (on average 1.193069306930693) internal successors, (241), 208 states have internal predecessors, (241), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2021-11-23 03:38:47,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-23 03:38:47,175 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 57 [2021-11-23 03:38:47,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:47,176 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-23 03:38:47,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:47,176 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-23 03:38:47,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-23 03:38:47,178 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:47,179 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:47,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-23 03:38:47,379 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:47,380 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:47,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:47,380 INFO L85 PathProgramCache]: Analyzing trace with hash 1459918940, now seen corresponding path program 1 times [2021-11-23 03:38:47,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:47,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147956669] [2021-11-23 03:38:47,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:47,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:47,410 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:38:47,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1244075429] [2021-11-23 03:38:47,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:47,411 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:47,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:47,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:47,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-23 03:38:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:48,043 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-23 03:38:48,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:48,167 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-23 03:38:48,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 03:38:48,168 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:48,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147956669] [2021-11-23 03:38:48,168 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:38:48,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244075429] [2021-11-23 03:38:48,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244075429] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 03:38:48,169 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 03:38:48,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 03:38:48,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647901656] [2021-11-23 03:38:48,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 03:38:48,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 03:38:48,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 03:38:48,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 03:38:48,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-23 03:38:48,171 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:49,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 03:38:49,891 INFO L93 Difference]: Finished difference Result 411 states and 498 transitions. [2021-11-23 03:38:49,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 03:38:49,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-23 03:38:49,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 03:38:49,899 INFO L225 Difference]: With dead ends: 411 [2021-11-23 03:38:49,899 INFO L226 Difference]: Without dead ends: 216 [2021-11-23 03:38:49,900 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-23 03:38:49,901 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 1 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-23 03:38:49,901 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 389 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-23 03:38:49,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-23 03:38:49,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2021-11-23 03:38:49,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 203 states have (on average 1.1970443349753694) internal successors, (243), 210 states have internal predecessors, (243), 8 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (9), 4 states have call predecessors, (9), 8 states have call successors, (9) [2021-11-23 03:38:49,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 260 transitions. [2021-11-23 03:38:49,915 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 260 transitions. Word has length 64 [2021-11-23 03:38:49,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 03:38:49,915 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 260 transitions. [2021-11-23 03:38:49,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 20.0) internal successors, (60), 4 states have internal predecessors, (60), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-23 03:38:49,916 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 260 transitions. [2021-11-23 03:38:49,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-23 03:38:49,918 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 03:38:49,919 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:38:49,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-23 03:38:50,133 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:50,134 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 03:38:50,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 03:38:50,134 INFO L85 PathProgramCache]: Analyzing trace with hash -1243076896, now seen corresponding path program 1 times [2021-11-23 03:38:50,134 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 03:38:50,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956233625] [2021-11-23 03:38:50,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:50,135 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 03:38:50,151 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 03:38:50,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1225497467] [2021-11-23 03:38:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 03:38:50,151 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 03:38:50,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 03:38:50,152 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 03:38:50,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_321f3db9-372d-46c7-b19c-38216d5af5c0/bin/utaipan-EQgc7hIp5V/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 03:38:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 03:38:56,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 03:38:56,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 03:38:56,862 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:38:56,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 03:38:57,052 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-23 03:38:57,052 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 03:38:57,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956233625] [2021-11-23 03:38:57,053 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-23 03:38:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225497467] [2021-11-23 03:38:57,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225497467] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 03:38:57,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [158104251] [2021-11-23 03:38:57,075 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-23 03:38:57,075 INFO L166 IcfgInterpreter]: Building call graph [2021-11-23 03:38:57,079 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-23 03:38:57,084 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-23 03:38:57,085 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-23 03:38:57,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:38:57,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-23 03:38:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,209 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-23 03:38:57,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,229 INFO L354 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2021-11-23 03:38:57,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 26 [2021-11-23 03:38:57,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,255 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-23 03:38:57,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-23 03:38:57,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,329 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 03:38:57,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,362 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-23 03:38:57,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-23 03:38:57,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,400 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 03:38:57,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2021-11-23 03:38:57,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,451 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-23 03:38:57,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-23 03:38:57,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 03:38:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 03:38:57,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,909 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 03:38:57,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 14 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-23 03:38:57,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,957 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 74 treesize of output 76 [2021-11-23 03:38:57,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:57,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,001 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 03:38:58,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 03:38:58,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 98 [2021-11-23 03:38:58,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:38:58,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 18 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 79 [2021-11-23 03:38:58,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,209 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 03:38:58,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,233 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 110 treesize of output 115 [2021-11-23 03:38:58,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,328 INFO L354 Elim1Store]: treesize reduction 170, result has 24.8 percent of original size [2021-11-23 03:38:58,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 127 treesize of output 163 [2021-11-23 03:38:58,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,382 INFO L354 Elim1Store]: treesize reduction 104, result has 16.8 percent of original size [2021-11-23 03:38:58,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 145 treesize of output 156 [2021-11-23 03:38:58,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 03:38:58,494 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 03:38:58,500 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 03:38:58,548 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-23 03:38:58,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 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 03:38:58,571 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:38:58,571 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 03:38:58,593 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-23 03:38:58,593 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 03:38:58,617 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 03:38:58,621 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 03:38:58,627 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 03:38:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:38:58,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,723 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 03:38:58,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,749 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 03:38:58,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-23 03:38:58,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,929 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 03:38:58,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:38:58,958 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 03:39:05,920 WARN L227 SmtUtils]: Spent 6.86s 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 03:39:05,921 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-23 03:39:05,922 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 2863 treesize of output 2340 [2021-11-23 03:39:05,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:14,607 WARN L227 SmtUtils]: Spent 8.63s 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 03:39:14,608 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-23 03:39:14,609 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 2964 treesize of output 2682 [2021-11-23 03:39:24,289 WARN L227 SmtUtils]: Spent 9.49s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-23 03:39:24,291 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-23 03:39:24,292 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 2868 treesize of output 2698 [2021-11-23 03:39:24,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:24,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:26,085 INFO L354 Elim1Store]: treesize reduction 156, result has 23.2 percent of original size [2021-11-23 03:39:26,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 25966 treesize of output 25997 [2021-11-23 03:39:26,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:26,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:26,867 INFO L354 Elim1Store]: treesize reduction 102, result has 20.3 percent of original size [2021-11-23 03:39:26,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 25976 treesize of output 25990 [2021-11-23 03:39:27,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:27,729 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-23 03:39:27,729 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 36 treesize of output 20 [2021-11-23 03:39:28,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:28,285 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-23 03:39:28,286 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 53 treesize of output 63 [2021-11-23 03:39:28,535 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,572 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,707 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,749 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,858 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,895 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,958 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:28,999 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,099 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,140 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,314 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,358 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,423 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,464 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,588 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,630 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,722 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,770 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,871 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:29,910 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,087 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,123 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,210 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,248 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,412 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,452 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,515 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,560 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,621 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,740 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,785 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,884 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:30,928 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,114 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,186 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,281 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,315 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,400 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,440 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,507 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,550 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,668 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:31,700 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,106 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,165 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,226 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,283 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,392 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,417 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,502 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,551 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,611 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,675 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,898 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:32,943 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,010 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,056 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,175 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,215 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,291 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,338 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,421 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,471 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,639 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,677 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:33,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:39:33,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:39:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:33,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1241 treesize of output 791 [2021-11-23 03:39:33,941 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,066 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,116 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,190 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,229 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,316 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,378 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,516 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,619 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,671 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,884 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,930 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:34,979 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,021 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,104 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,131 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,214 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,265 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,326 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,359 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,751 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,781 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,882 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,913 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:35,992 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,020 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,071 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,101 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,173 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,204 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,349 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,387 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,435 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,466 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,579 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,608 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,673 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,704 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,787 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,817 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:36,959 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,002 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,077 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,114 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,260 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,292 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,339 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,373 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,449 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,498 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,549 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,585 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,674 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,714 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,848 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,880 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:37,968 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,000 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,086 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,118 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,168 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,202 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,287 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:38,319 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:39,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:39,375 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-23 03:39:39,426 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:39,445 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:39,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:39,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:39,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 15 [2021-11-23 03:39:39,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:39,990 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-23 03:39:39,991 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 38 treesize of output 32 [2021-11-23 03:39:40,081 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:40,133 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:39:40,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:40,252 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-23 03:39:42,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:42,341 INFO L244 Elim1Store]: Index analysis took 187 ms [2021-11-23 03:39:42,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:39:44,666 INFO L354 Elim1Store]: treesize reduction 9884, result has 39.3 percent of original size [2021-11-23 03:39:44,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 57661 treesize of output 57014 [2021-11-23 03:40:01,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:01,634 INFO L244 Elim1Store]: Index analysis took 268 ms [2021-11-23 03:40:01,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:02,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:02,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:04,940 INFO L354 Elim1Store]: treesize reduction 8978, result has 45.0 percent of original size [2021-11-23 03:40:04,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 13 case distinctions, treesize of input 6843 treesize of output 12272 [2021-11-23 03:40:05,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:05,464 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:05,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:05,597 INFO L244 Elim1Store]: Index analysis took 144 ms [2021-11-23 03:40:05,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:07,650 INFO L354 Elim1Store]: treesize reduction 6630, result has 45.1 percent of original size [2021-11-23 03:40:07,650 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 12078 treesize of output 15360 [2021-11-23 03:40:08,085 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:08,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,099 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:08,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,132 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:08,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,281 INFO L244 Elim1Store]: Index analysis took 196 ms [2021-11-23 03:40:08,491 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:40:08,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 5290 treesize of output 3722 [2021-11-23 03:40:08,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,585 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:08,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,604 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:08,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,736 INFO L244 Elim1Store]: Index analysis took 161 ms [2021-11-23 03:40:08,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:08,983 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-23 03:40:08,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 9566 treesize of output 7506 [2021-11-23 03:40:09,148 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,186 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,209 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,338 INFO L244 Elim1Store]: Index analysis took 190 ms [2021-11-23 03:40:09,540 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 7950 treesize of output 6198 [2021-11-23 03:40:09,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,684 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,721 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:09,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,793 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:09,883 INFO L244 Elim1Store]: Index analysis took 211 ms [2021-11-23 03:40:10,078 INFO L354 Elim1Store]: treesize reduction 51, result has 1.9 percent of original size [2021-11-23 03:40:10,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 6834 treesize of output 5082 [2021-11-23 03:40:10,141 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-23 03:40:10,219 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:10,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,246 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:10,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-23 03:40:10,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:10,401 INFO L244 Elim1Store]: Index analysis took 182 ms [2021-11-23 03:40:10,543 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 5290 treesize of output 3722 [2021-11-23 03:40:20,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-23 03:40:20,597 INFO L190 IndexEqualityManager]: detected not equals via solver