./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P --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 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:06:56,480 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:06:56,482 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:06:56,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:06:56,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:06:56,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:06:56,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:06:56,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:06:56,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:06:56,522 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:06:56,523 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:06:56,525 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:06:56,525 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:06:56,527 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:06:56,528 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:06:56,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:06:56,531 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:06:56,532 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:06:56,534 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:06:56,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:06:56,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:06:56,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:06:56,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:06:56,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:06:56,546 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:06:56,547 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:06:56,547 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:06:56,548 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:06:56,549 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:06:56,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:06:56,551 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:06:56,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:06:56,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:06:56,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:06:56,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:06:56,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:06:56,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:06:56,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:06:56,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:06:56,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:06:56,560 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:06:56,561 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:06:56,605 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:06:56,605 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:06:56,606 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:06:56,606 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:06:56,607 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:06:56,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:06:56,613 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:06:56,614 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:06:56,614 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:06:56,614 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:06:56,615 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:06:56,615 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:06:56,616 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:06:56,616 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:06:56,616 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:06:56,616 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:06:56,616 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:06:56,617 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:06:56,618 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:06:56,618 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:06:56,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:06:56,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:06:56,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:06:56,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:06:56,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:06:56,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:06:56,620 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:06:56,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:06:56,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:06:56,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:06:56,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:06:56,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:06:56,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:06:56,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:06:56,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:06:56,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:06:56,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:06:56,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:06:56,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:06:56,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:06:56,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:06:56,623 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22b4144b7005899e18ff8135fa52f12863f7106dbe1ddb808d25d8593c5f8fc4 [2021-11-21 01:06:56,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:06:56,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:06:56,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:06:56,936 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:06:56,936 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:06:56,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-11-21 01:06:57,020 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/data/590081935/70e4ebac5cb647a2a085870712255241/FLAG168b21134 [2021-11-21 01:06:57,660 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:06:57,660 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i [2021-11-21 01:06:57,691 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/data/590081935/70e4ebac5cb647a2a085870712255241/FLAG168b21134 [2021-11-21 01:06:57,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/data/590081935/70e4ebac5cb647a2a085870712255241 [2021-11-21 01:06:57,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:06:57,868 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:06:57,869 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:06:57,869 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:06:57,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:06:57,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:06:57" (1/1) ... [2021-11-21 01:06:57,874 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4599665b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:57, skipping insertion in model container [2021-11-21 01:06:57,874 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:06:57" (1/1) ... [2021-11-21 01:06:57,881 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:06:57,939 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:06:58,449 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-11-21 01:06:58,610 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-11-21 01:06:58,611 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-11-21 01:06:58,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:06:58,639 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:06:58,691 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[33021,33034] [2021-11-21 01:06:58,761 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_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44124,44137] [2021-11-21 01:06:58,762 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test7-1.i[44245,44258] [2021-11-21 01:06:58,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:06:58,808 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:06:58,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58 WrapperNode [2021-11-21 01:06:58,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:06:58,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:06:58,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:06:58,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:06:58,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,911 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 01:06:58,912 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:06:58,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:06:58,913 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:06:58,913 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:06:58,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,985 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:58,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:59,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:59,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:06:59,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:06:59,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:06:59,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:06:59,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (1/1) ... [2021-11-21 01:06:59,023 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:06:59,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:59,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:06:59,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:06:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:06:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:06:59,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:06:59,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:06:59,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:06:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:06:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:06:59,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:06:59,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:06:59,376 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:06:59,377 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:07:00,399 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:07:00,759 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:07:00,760 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:07:00,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:07:00 BoogieIcfgContainer [2021-11-21 01:07:00,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:07:00,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:07:00,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:07:00,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:07:00,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:06:57" (1/3) ... [2021-11-21 01:07:00,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780492bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:07:00, skipping insertion in model container [2021-11-21 01:07:00,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:58" (2/3) ... [2021-11-21 01:07:00,772 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780492bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:07:00, skipping insertion in model container [2021-11-21 01:07:00,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:07:00" (3/3) ... [2021-11-21 01:07:00,775 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test7-1.i [2021-11-21 01:07:00,780 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:07:00,780 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 01:07:00,828 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:07:00,835 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 [2021-11-21 01:07:00,835 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 01:07:00,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:00,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 01:07:00,857 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:00,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:07:00,859 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:00,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:00,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1906206326, now seen corresponding path program 1 times [2021-11-21 01:07:00,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:00,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459305126] [2021-11-21 01:07:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:00,874 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:00,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:01,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:07:01,016 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:01,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459305126] [2021-11-21 01:07:01,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459305126] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:01,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:01,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:07:01,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400428695] [2021-11-21 01:07:01,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:01,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:07:01,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:01,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:07:01,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:07:01,064 INFO L87 Difference]: Start difference. First operand has 108 states, 101 states have (on average 1.811881188118812) internal successors, (183), 103 states have internal predecessors, (183), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:01,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:01,524 INFO L93 Difference]: Finished difference Result 215 states and 377 transitions. [2021-11-21 01:07:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:07:01,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-21 01:07:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:01,540 INFO L225 Difference]: With dead ends: 215 [2021-11-21 01:07:01,540 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 01:07:01,543 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 [2021-11-21 01:07:01,547 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:01,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 109 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:07:01,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 01:07:01,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 01:07:01,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 101 states have (on average 1.1782178217821782) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:01,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-21 01:07:01,594 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-21 01:07:01,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:01,594 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-21 01:07:01,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:01,595 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-21 01:07:01,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 01:07:01,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:01,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:07:01,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:07:01,596 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:01,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:01,597 INFO L85 PathProgramCache]: Analyzing trace with hash 30908713, now seen corresponding path program 1 times [2021-11-21 01:07:01,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:01,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054044775] [2021-11-21 01:07:01,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:01,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:01,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:01,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:07:01,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:01,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054044775] [2021-11-21 01:07:01,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054044775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:01,656 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:01,656 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:07:01,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586871926] [2021-11-21 01:07:01,657 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:01,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:07:01,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:01,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:07:01,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:07:01,660 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:03,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:03,500 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-21 01:07:03,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:07:03,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-11-21 01:07:03,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:03,509 INFO L225 Difference]: With dead ends: 219 [2021-11-21 01:07:03,509 INFO L226 Difference]: Without dead ends: 165 [2021-11-21 01:07:03,509 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:07:03,511 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:03,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 01:07:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-21 01:07:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-21 01:07:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 103 states have (on average 1.174757281553398) internal successors, (121), 104 states have internal predecessors, (121), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:03,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-21 01:07:03,525 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-21 01:07:03,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:03,526 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-21 01:07:03,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:03,526 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-21 01:07:03,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:07:03,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:03,528 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:07:03,528 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:07:03,528 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:03,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:03,529 INFO L85 PathProgramCache]: Analyzing trace with hash -667749530, now seen corresponding path program 1 times [2021-11-21 01:07:03,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:03,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501703647] [2021-11-21 01:07:03,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:03,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:03,551 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:03,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1442795562] [2021-11-21 01:07:03,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:03,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:03,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:03,567 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:03,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:07:03,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:03,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:07:03,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:03,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:07:03,978 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:07:03,978 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:03,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501703647] [2021-11-21 01:07:03,979 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:03,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1442795562] [2021-11-21 01:07:03,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1442795562] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:03,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:03,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:07:03,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545064220] [2021-11-21 01:07:03,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:03,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:07:03,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:03,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:07:03,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:07:03,986 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:04,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:04,872 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-21 01:07:04,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:07:04,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-11-21 01:07:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:04,880 INFO L225 Difference]: With dead ends: 265 [2021-11-21 01:07:04,880 INFO L226 Difference]: Without dead ends: 159 [2021-11-21 01:07:04,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:07:04,883 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:04,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 01:07:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-21 01:07:04,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-21 01:07:04,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 146 states have (on average 1.1643835616438356) internal successors, (170), 147 states have internal predecessors, (170), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:04,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-21 01:07:04,899 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-21 01:07:04,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:04,900 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-21 01:07:04,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:07:04,900 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-21 01:07:04,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:07:04,902 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:04,902 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] [2021-11-21 01:07:04,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 01:07:05,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:05,119 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:05,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:05,119 INFO L85 PathProgramCache]: Analyzing trace with hash -357184176, now seen corresponding path program 1 times [2021-11-21 01:07:05,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:05,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688626485] [2021-11-21 01:07:05,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:05,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:05,140 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:05,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1914881976] [2021-11-21 01:07:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:05,144 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:05,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:05,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:05,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:07:05,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:05,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:07:05,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:05,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 01:07:05,569 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 [2021-11-21 01:07:05,581 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:07:05,581 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:07:05,582 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:05,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688626485] [2021-11-21 01:07:05,582 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:05,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914881976] [2021-11-21 01:07:05,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914881976] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:05,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:05,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:07:05,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890544337] [2021-11-21 01:07:05,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:05,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:07:05,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:05,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:07:05,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:07:05,585 INFO L87 Difference]: Start difference. First operand 152 states and 176 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-21 01:07:08,488 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:08,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:08,767 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-21 01:07:08,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:07:08,774 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 46 [2021-11-21 01:07:08,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:08,776 INFO L225 Difference]: With dead ends: 201 [2021-11-21 01:07:08,776 INFO L226 Difference]: Without dead ends: 197 [2021-11-21 01:07:08,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:07:08,779 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:08,779 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2021-11-21 01:07:08,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-21 01:07:08,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-21 01:07:08,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 148 states have (on average 1.162162162162162) internal successors, (172), 149 states have internal predecessors, (172), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:08,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-21 01:07:08,795 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-21 01:07:08,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:08,796 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-21 01:07:08,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2021-11-21 01:07:08,797 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-21 01:07:08,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 01:07:08,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:08,799 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] [2021-11-21 01:07:08,850 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:09,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:09,027 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:09,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:09,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1806423702, now seen corresponding path program 1 times [2021-11-21 01:07:09,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:09,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431105647] [2021-11-21 01:07:09,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:09,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:09,045 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:09,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781526605] [2021-11-21 01:07:09,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:09,046 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:09,047 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:09,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:09,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:07:09,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:09,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:07:09,291 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:09,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:07:09,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:07:09,445 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:09,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431105647] [2021-11-21 01:07:09,446 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:09,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781526605] [2021-11-21 01:07:09,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781526605] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:09,446 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:09,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:07:09,447 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669034975] [2021-11-21 01:07:09,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:09,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:07:09,448 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:09,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:07:09,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:07:09,449 INFO L87 Difference]: Start difference. First operand 154 states and 178 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) [2021-11-21 01:07:10,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:10,051 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-21 01:07:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:07:10,057 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 [2021-11-21 01:07:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:10,059 INFO L225 Difference]: With dead ends: 344 [2021-11-21 01:07:10,059 INFO L226 Difference]: Without dead ends: 206 [2021-11-21 01:07:10,060 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 [2021-11-21 01:07:10,063 INFO L933 BasicCegarLoop]: 103 mSDtfsCounter, 227 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:10,063 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 175 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 01:07:10,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-21 01:07:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-21 01:07:10,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 193 states have (on average 1.1709844559585492) internal successors, (226), 194 states have internal predecessors, (226), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-21 01:07:10,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-21 01:07:10,085 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-21 01:07:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:10,086 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-21 01:07:10,086 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) [2021-11-21 01:07:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-21 01:07:10,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 01:07:10,089 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:10,089 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] [2021-11-21 01:07:10,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:10,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:10,315 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:10,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:10,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1808435595, now seen corresponding path program 1 times [2021-11-21 01:07:10,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:10,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717739674] [2021-11-21 01:07:10,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:10,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:10,339 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:10,343 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616324038] [2021-11-21 01:07:10,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:10,343 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:10,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:10,344 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:10,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:07:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:11,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:07:11,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:11,603 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:07:11,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:07:11,604 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:11,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717739674] [2021-11-21 01:07:11,604 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:11,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616324038] [2021-11-21 01:07:11,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616324038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:11,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:11,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:07:11,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918098194] [2021-11-21 01:07:11,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:11,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:07:11,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:11,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:07:11,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:07:11,607 INFO L87 Difference]: Start difference. First operand 199 states and 232 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) [2021-11-21 01:07:13,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:13,746 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-21 01:07:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:07:13,761 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 [2021-11-21 01:07:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:13,763 INFO L225 Difference]: With dead ends: 381 [2021-11-21 01:07:13,763 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 01:07:13,764 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 [2021-11-21 01:07:13,765 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:13,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-21 01:07:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 01:07:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 01:07:13,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 194 states have (on average 1.175257731958763) internal successors, (228), 196 states have internal predecessors, (228), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-11-21 01:07:13,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-21 01:07:13,784 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-21 01:07:13,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:13,785 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-21 01:07:13,785 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) [2021-11-21 01:07:13,785 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-21 01:07:13,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 01:07:13,788 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:13,788 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] [2021-11-21 01:07:13,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:14,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 01:07:14,015 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:07:14,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:14,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1272133155, now seen corresponding path program 1 times [2021-11-21 01:07:14,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:14,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249672909] [2021-11-21 01:07:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:14,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:14,029 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:14,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1189985813] [2021-11-21 01:07:14,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:14,029 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:14,029 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:14,035 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:14,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d68f31b8-c769-479f-8326-8e7647f9ffb5/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:07:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:15,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 01:07:15,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:15,626 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:07:15,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:07:15,866 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:07:15,867 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249672909] [2021-11-21 01:07:15,867 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189985813] [2021-11-21 01:07:15,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189985813] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:07:15,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [167552755] [2021-11-21 01:07:15,900 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 01:07:15,900 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:07:15,906 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:07:15,911 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:07:15,911 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:07:16,060 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 [2021-11-21 01:07:16,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,086 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 01:07:16,086 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 [2021-11-21 01:07:16,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:07:16,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,143 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 [2021-11-21 01:07:16,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-21 01:07:16,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,283 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 01:07:16,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:07:16,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 49 [2021-11-21 01:07:16,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:07:16,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2021-11-21 01:07:16,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:16,437 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:07:16,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:07:17,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-21 01:07:17,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 77 [2021-11-21 01:07:17,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 74 treesize of output 76 [2021-11-21 01:07:17,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:07:17,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:07:17,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:07:17,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:17,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 108 treesize of output 98 [2021-11-21 01:07:18,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 89 treesize of output 79 [2021-11-21 01:07:18,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 01:07:18,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 01:07:18,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,315 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 01:07:18,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 127 treesize of output 138 [2021-11-21 01:07:18,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,408 INFO L354 Elim1Store]: treesize reduction 232, result has 10.1 percent of original size [2021-11-21 01:07:18,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 126 treesize of output 132 [2021-11-21 01:07:18,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:18,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 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 [2021-11-21 01:07:19,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:07:19,066 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 [2021-11-21 01:07:19,073 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 [2021-11-21 01:07:19,125 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:07:19,125 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 [2021-11-21 01:07:19,144 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:07:19,145 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 [2021-11-21 01:07:19,166 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:07:19,166 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 [2021-11-21 01:07:19,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:07:19,232 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 [2021-11-21 01:07:19,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-21 01:07:19,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 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 [2021-11-21 01:07:19,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,378 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 46 treesize of output 16 [2021-11-21 01:07:19,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,401 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 68 treesize of output 26 [2021-11-21 01:07:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,680 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 46 treesize of output 16 [2021-11-21 01:07:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 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 [2021-11-21 01:07:19,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:19,791 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 68 treesize of output 26 [2021-11-21 01:07:26,828 WARN L227 SmtUtils]: Spent 6.90s 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) [2021-11-21 01:07:26,828 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:07:26,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 01:07:26,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,761 WARN L227 SmtUtils]: Spent 8.90s 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) [2021-11-21 01:07:35,761 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:07:35,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 01:07:47,065 WARN L227 SmtUtils]: Spent 11.16s 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) [2021-11-21 01:07:47,067 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 01:07:47,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 01:07:47,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:47,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:47,911 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 01:07:47,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-21 01:07:48,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:48,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:48,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:48,879 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 01:07:48,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-21 01:07:50,222 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:07:50,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:50,561 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:07:50,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-21 01:07:50,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:51,132 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 01:07:51,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-21 01:07:51,913 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:51,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:51,924 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:51,945 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:51,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:51,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,013 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 [2021-11-21 01:07:52,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,807 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:52,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:52,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:52,878 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 1243 treesize of output 795 [2021-11-21 01:07:53,152 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:07:53,501 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:53,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,520 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:53,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,583 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 1243 treesize of output 795 [2021-11-21 01:07:53,832 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:07:54,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,193 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:54,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,205 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:54,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,223 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:54,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,287 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:54,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,305 INFO L244 Elim1Store]: Index analysis took 130 ms [2021-11-21 01:07:54,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1252 treesize of output 798 [2021-11-21 01:07:54,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,868 INFO L244 Elim1Store]: Index analysis took 169 ms [2021-11-21 01:07:56,050 INFO L354 Elim1Store]: treesize reduction 582, result has 68.4 percent of original size [2021-11-21 01:07:56,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 1252 treesize of output 2058 [2021-11-21 01:07:58,077 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:58,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:58,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,313 INFO L354 Elim1Store]: treesize reduction 23, result has 66.7 percent of original size [2021-11-21 01:07:58,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 1243 treesize of output 841 [2021-11-21 01:07:58,726 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:00,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:00,272 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:00,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:00,313 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:00,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:00,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:00,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:00,401 INFO L244 Elim1Store]: Index analysis took 154 ms [2021-11-21 01:08:00,497 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:08:00,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 1231 treesize of output 1013 [2021-11-21 01:08:00,675 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:01,182 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:01,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:01,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:01,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:01,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1222 treesize of output 792 [2021-11-21 01:08:01,467 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:02,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:02,123 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:02,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:02,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:02,311 INFO L354 Elim1Store]: treesize reduction 1152, result has 0.1 percent of original size [2021-11-21 01:08:02,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1231 treesize of output 795 [2021-11-21 01:08:02,449 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:04,011 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 01:08:04,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 1343 treesize of output 1351 [2021-11-21 01:08:04,497 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:04,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:05,126 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 01:08:05,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 38 treesize of output 32 [2021-11-21 01:08:05,479 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:05,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:05,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-21 01:08:10,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:10,496 INFO L190 IndexEqualityManager]: detected not equals via solver