./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/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 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:54:06,311 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:54:06,315 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:54:06,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:54:06,392 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:54:06,397 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:54:06,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:54:06,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:54:06,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:54:06,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:54:06,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:54:06,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:54:06,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:54:06,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:54:06,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:54:06,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:54:06,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:54:06,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:54:06,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:54:06,449 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:54:06,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:54:06,454 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:54:06,458 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:54:06,459 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:54:06,470 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:54:06,471 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:54:06,471 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:54:06,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:54:06,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:54:06,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:54:06,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:54:06,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:54:06,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:54:06,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:54:06,484 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:54:06,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:54:06,485 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:54:06,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:54:06,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:54:06,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:54:06,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:54:06,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:54:06,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:54:06,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:54:06,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:54:06,551 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:54:06,552 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:54:06,552 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:54:06,552 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:54:06,553 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:54:06,553 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:54:06,553 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:54:06,554 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:54:06,555 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:54:06,555 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:54:06,555 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:54:06,555 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:54:06,556 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:54:06,556 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:54:06,556 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:54:06,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:54:06,558 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:54:06,558 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:54:06,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:54:06,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:54:06,559 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:54:06,559 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:54:06,560 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:54:06,561 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:54:06,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:54:06,562 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:54:06,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:54:06,563 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:54:06,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:54:06,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:54:06,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:54:06,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:54:06,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:54:06,565 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:54:06,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:54:06,565 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:54:06,565 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:54:06,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:54:06,566 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d4f4fa5c64db6e2d1986e03259021eba4df8a22df3a334e78927feece513264 [2021-11-21 00:54:06,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:54:06,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:54:06,920 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:54:06,922 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:54:06,923 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:54:06,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2021-11-21 00:54:07,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/data/87316bd68/8254bf4b86e64538a9840f0a1bb830a0/FLAG808a6af05 [2021-11-21 00:54:07,757 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:54:07,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i [2021-11-21 00:54:07,796 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/data/87316bd68/8254bf4b86e64538a9840f0a1bb830a0/FLAG808a6af05 [2021-11-21 00:54:07,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/data/87316bd68/8254bf4b86e64538a9840f0a1bb830a0 [2021-11-21 00:54:07,958 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:54:07,960 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:54:07,966 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:54:07,966 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:54:07,971 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:54:07,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:54:07" (1/1) ... [2021-11-21 00:54:07,975 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70715161 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:07, skipping insertion in model container [2021-11-21 00:54:07,976 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:54:07" (1/1) ... [2021-11-21 00:54:07,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:54:08,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:54:08,545 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[33021,33034] [2021-11-21 00:54:08,668 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44124,44137] [2021-11-21 00:54:08,680 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44245,44258] [2021-11-21 00:54:08,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:54:08,713 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:54:08,777 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[33021,33034] [2021-11-21 00:54:08,889 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44124,44137] [2021-11-21 00:54:08,893 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_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test7-1.i[44245,44258] [2021-11-21 00:54:08,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:54:08,959 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:54:08,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08 WrapperNode [2021-11-21 00:54:08,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:54:08,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:54:08,962 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:54:08,962 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:54:08,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,105 INFO L137 Inliner]: procedures = 176, calls = 277, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 996 [2021-11-21 00:54:09,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:54:09,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:54:09,107 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:54:09,107 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:54:09,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,228 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:54:09,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:54:09,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:54:09,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:54:09,344 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (1/1) ... [2021-11-21 00:54:09,354 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:54:09,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:09,395 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:54:09,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:54:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:54:09,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:54:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:54:09,459 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:54:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:54:09,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:54:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:54:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:54:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:54:09,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:54:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:54:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:54:09,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:54:09,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:54:09,735 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:54:09,737 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:54:10,992 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:54:11,604 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:54:11,605 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 00:54:11,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:54:11 BoogieIcfgContainer [2021-11-21 00:54:11,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:54:11,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:54:11,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:54:11,616 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:54:11,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:54:07" (1/3) ... [2021-11-21 00:54:11,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2fa2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:54:11, skipping insertion in model container [2021-11-21 00:54:11,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:54:08" (2/3) ... [2021-11-21 00:54:11,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d2fa2c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:54:11, skipping insertion in model container [2021-11-21 00:54:11,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:54:11" (3/3) ... [2021-11-21 00:54:11,623 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test7-1.i [2021-11-21 00:54:11,630 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:54:11,630 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-21 00:54:11,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:54:11,729 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 00:54:11,729 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-21 00:54:11,756 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 00:54:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:54:11,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:11,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:54:11,762 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:11,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:11,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1906206326, now seen corresponding path program 1 times [2021-11-21 00:54:11,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:11,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301255573] [2021-11-21 00:54:11,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:11,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:11,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:11,958 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 00:54:11,958 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:11,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301255573] [2021-11-21 00:54:11,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301255573] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:11,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:11,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:54:11,962 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925381860] [2021-11-21 00:54:11,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:11,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:54:11,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:11,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:54:11,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:54:11,999 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 00:54:12,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:12,462 INFO L93 Difference]: Finished difference Result 215 states and 377 transitions. [2021-11-21 00:54:12,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:54:12,471 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 00:54:12,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:12,485 INFO L225 Difference]: With dead ends: 215 [2021-11-21 00:54:12,485 INFO L226 Difference]: Without dead ends: 107 [2021-11-21 00:54:12,491 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 00:54:12,496 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 00:54:12,499 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 00:54:12,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-11-21 00:54:12,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-11-21 00:54:12,553 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 00:54:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2021-11-21 00:54:12,558 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 7 [2021-11-21 00:54:12,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:12,559 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2021-11-21 00:54:12,559 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 00:54:12,560 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2021-11-21 00:54:12,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:54:12,561 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:12,561 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:54:12,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:54:12,562 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:12,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:12,563 INFO L85 PathProgramCache]: Analyzing trace with hash 30908713, now seen corresponding path program 1 times [2021-11-21 00:54:12,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:12,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258346991] [2021-11-21 00:54:12,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:12,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:12,691 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 00:54:12,691 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:12,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258346991] [2021-11-21 00:54:12,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258346991] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:12,692 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:12,692 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:54:12,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145093555] [2021-11-21 00:54:12,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:12,694 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:54:12,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:12,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:54:12,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:54:12,696 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 00:54:15,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:15,098 INFO L93 Difference]: Finished difference Result 219 states and 256 transitions. [2021-11-21 00:54:15,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:54:15,106 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 00:54:15,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:15,109 INFO L225 Difference]: With dead ends: 219 [2021-11-21 00:54:15,109 INFO L226 Difference]: Without dead ends: 165 [2021-11-21 00:54:15,110 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 00:54:15,112 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 63 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s 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, 2.3s IncrementalHoareTripleChecker+Time [2021-11-21 00:54:15,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [63 Valid, 285 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-21 00:54:15,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-11-21 00:54:15,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 109. [2021-11-21 00:54:15,169 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 00:54:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2021-11-21 00:54:15,171 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 9 [2021-11-21 00:54:15,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:15,172 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2021-11-21 00:54:15,172 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 00:54:15,172 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2021-11-21 00:54:15,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 00:54:15,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:15,178 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:54:15,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:54:15,178 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:15,179 INFO L85 PathProgramCache]: Analyzing trace with hash -667749530, now seen corresponding path program 1 times [2021-11-21 00:54:15,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:15,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764052232] [2021-11-21 00:54:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:15,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:15,208 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:54:15,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1829613346] [2021-11-21 00:54:15,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:15,209 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:15,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:15,212 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:54:15,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:54:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:15,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:54:15,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:54:15,638 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 00:54:15,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:54:15,639 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:15,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764052232] [2021-11-21 00:54:15,640 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:54:15,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1829613346] [2021-11-21 00:54:15,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1829613346] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:15,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:15,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:54:15,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465008175] [2021-11-21 00:54:15,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:15,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:54:15,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:15,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:54:15,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:54:15,644 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 00:54:16,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:16,816 INFO L93 Difference]: Finished difference Result 265 states and 307 transitions. [2021-11-21 00:54:16,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:54:16,822 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 00:54:16,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:16,824 INFO L225 Difference]: With dead ends: 265 [2021-11-21 00:54:16,824 INFO L226 Difference]: Without dead ends: 159 [2021-11-21 00:54:16,825 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 00:54:16,827 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 48 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s 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, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:54:16,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 208 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:54:16,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-11-21 00:54:16,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 152. [2021-11-21 00:54:16,845 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 00:54:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 176 transitions. [2021-11-21 00:54:16,847 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 176 transitions. Word has length 33 [2021-11-21 00:54:16,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:16,848 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 176 transitions. [2021-11-21 00:54:16,848 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 00:54:16,849 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 176 transitions. [2021-11-21 00:54:16,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:54:16,851 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:16,852 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 00:54:16,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:54:17,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-21 00:54:17,068 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:17,069 INFO L85 PathProgramCache]: Analyzing trace with hash -357184176, now seen corresponding path program 1 times [2021-11-21 00:54:17,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515876802] [2021-11-21 00:54:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:17,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:17,114 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:54:17,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1666764245] [2021-11-21 00:54:17,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:17,122 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:17,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:17,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:54:17,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:54:17,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:17,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 00:54:17,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:54:17,543 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 00:54:17,571 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 00:54:17,586 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 00:54:17,586 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:54:17,587 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:17,587 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515876802] [2021-11-21 00:54:17,587 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:54:17,588 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666764245] [2021-11-21 00:54:17,588 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666764245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:17,588 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:17,588 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:54:17,589 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409264611] [2021-11-21 00:54:17,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:17,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:54:17,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:17,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:54:17,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:54:17,591 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 00:54:19,748 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:54:21,304 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:54:21,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:21,681 INFO L93 Difference]: Finished difference Result 201 states and 235 transitions. [2021-11-21 00:54:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:54:21,691 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 00:54:21,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:21,693 INFO L225 Difference]: With dead ends: 201 [2021-11-21 00:54:21,693 INFO L226 Difference]: Without dead ends: 197 [2021-11-21 00:54:21,694 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 00:54:21,696 INFO L933 BasicCegarLoop]: 99 mSDtfsCounter, 58 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:54:21,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 283 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-21 00:54:21,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-11-21 00:54:21,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 154. [2021-11-21 00:54:21,761 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 00:54:21,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 178 transitions. [2021-11-21 00:54:21,763 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 178 transitions. Word has length 46 [2021-11-21 00:54:21,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:21,765 INFO L470 AbstractCegarLoop]: Abstraction has 154 states and 178 transitions. [2021-11-21 00:54:21,765 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 00:54:21,765 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 178 transitions. [2021-11-21 00:54:21,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-21 00:54:21,768 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:21,769 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 00:54:21,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:54:21,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:21,984 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:21,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:21,985 INFO L85 PathProgramCache]: Analyzing trace with hash 1806423702, now seen corresponding path program 1 times [2021-11-21 00:54:21,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:21,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102805479] [2021-11-21 00:54:21,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:21,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:22,006 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:54:22,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2021895953] [2021-11-21 00:54:22,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:22,007 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:22,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:22,008 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:54:22,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:54:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:22,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:54:22,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:54:22,538 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 00:54:22,538 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:54:22,539 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:22,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102805479] [2021-11-21 00:54:22,539 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:54:22,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021895953] [2021-11-21 00:54:22,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021895953] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:22,540 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:22,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:54:22,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972708283] [2021-11-21 00:54:22,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:22,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:54:22,541 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:22,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:54:22,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:54:22,542 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 00:54:23,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:23,165 INFO L93 Difference]: Finished difference Result 344 states and 400 transitions. [2021-11-21 00:54:23,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:54:23,172 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 00:54:23,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:23,174 INFO L225 Difference]: With dead ends: 344 [2021-11-21 00:54:23,174 INFO L226 Difference]: Without dead ends: 206 [2021-11-21 00:54:23,174 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 00:54:23,175 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 00:54:23,175 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 00:54:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-21 00:54:23,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 199. [2021-11-21 00:54:23,192 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 00:54:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 232 transitions. [2021-11-21 00:54:23,196 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 232 transitions. Word has length 57 [2021-11-21 00:54:23,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:23,199 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 232 transitions. [2021-11-21 00:54:23,199 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 00:54:23,199 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 232 transitions. [2021-11-21 00:54:23,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-21 00:54:23,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:23,207 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 00:54:23,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:54:23,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:23,423 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:23,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:23,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1808435595, now seen corresponding path program 1 times [2021-11-21 00:54:23,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:23,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969330555] [2021-11-21 00:54:23,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:23,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:23,459 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:54:23,466 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285793519] [2021-11-21 00:54:23,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:23,466 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:23,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:23,469 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:54:23,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:54:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:24,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:54:24,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:54:25,016 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 00:54:25,017 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:54:25,017 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:25,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969330555] [2021-11-21 00:54:25,018 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:54:25,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285793519] [2021-11-21 00:54:25,018 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285793519] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:54:25,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:54:25,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:54:25,019 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939817929] [2021-11-21 00:54:25,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:54:25,020 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:54:25,020 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:54:25,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:54:25,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:54:25,021 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 00:54:27,965 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:54:27,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:54:27,965 INFO L93 Difference]: Finished difference Result 381 states and 448 transitions. [2021-11-21 00:54:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:54:27,983 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 00:54:27,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:54:27,987 INFO L225 Difference]: With dead ends: 381 [2021-11-21 00:54:27,987 INFO L226 Difference]: Without dead ends: 201 [2021-11-21 00:54:27,988 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 00:54:27,989 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 1 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s 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, 2.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:54:27,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 317 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-21 00:54:28,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-11-21 00:54:28,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 201. [2021-11-21 00:54:28,048 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 00:54:28,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 235 transitions. [2021-11-21 00:54:28,051 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 235 transitions. Word has length 64 [2021-11-21 00:54:28,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:54:28,052 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 235 transitions. [2021-11-21 00:54:28,052 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 00:54:28,053 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 235 transitions. [2021-11-21 00:54:28,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-21 00:54:28,058 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:54:28,059 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 00:54:28,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:54:28,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:28,260 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:54:28,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:54:28,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1272133155, now seen corresponding path program 1 times [2021-11-21 00:54:28,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:54:28,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700706599] [2021-11-21 00:54:28,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:28,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:54:28,306 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:54:28,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1950937936] [2021-11-21 00:54:28,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:54:28,307 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:54:28,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:54:28,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:54:28,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9282b4a1-0911-4af2-ac7c-4905a1a36a4c/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:54:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:54:30,170 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 00:54:30,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:54:30,418 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 00:54:30,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:54:30,768 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 00:54:30,768 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:54:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700706599] [2021-11-21 00:54:30,769 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:54:30,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1950937936] [2021-11-21 00:54:30,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1950937936] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:54:30,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1394425681] [2021-11-21 00:54:30,805 INFO L159 IcfgInterpreter]: Started Sifa with 60 locations of interest [2021-11-21 00:54:30,805 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:54:30,810 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:54:30,817 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:54:30,817 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:54:30,981 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 00:54:30,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,011 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:54:31,012 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 00:54:31,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,047 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 00:54:31,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,076 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 00:54:31,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 00:54:31,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,290 INFO L354 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2021-11-21 00:54:31,291 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 00:54:31,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,355 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 00:54:31,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,432 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 00:54:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,459 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 00:54:31,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:31,498 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:54:31,503 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 00:54:33,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,137 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 00:54:33,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,202 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 00:54:33,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,235 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 00:54:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,313 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 00:54:33,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,382 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 00:54:33,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,448 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 00:54:33,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,529 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 00:54:33,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,561 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 00:54:33,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,758 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 00:54:33,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,818 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 00:54:33,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,896 INFO L354 Elim1Store]: treesize reduction 128, result has 14.1 percent of original size [2021-11-21 00:54:33,896 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 00:54:33,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:33,992 INFO L354 Elim1Store]: treesize reduction 232, result has 10.1 percent of original size [2021-11-21 00:54:33,993 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 00:54:34,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:34,107 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 00:54:34,676 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 00:54:34,689 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 00:54:34,698 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 00:54:34,762 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:54:34,763 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 00:54:34,786 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:54:34,786 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 00:54:34,811 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:54:34,811 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 00:54:34,888 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 00:54:34,900 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 00:54:34,910 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 00:54:35,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,011 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 00:54:35,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,094 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 00:54:35,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,162 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 00:54:35,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,519 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 00:54:35,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,560 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 00:54:35,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:35,665 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 00:54:45,177 WARN L227 SmtUtils]: Spent 9.31s 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 00:54:45,178 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:54:45,179 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 00:54:45,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:57,422 WARN L227 SmtUtils]: Spent 12.20s 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 00:54:57,423 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:54:57,424 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 00:55:13,277 WARN L227 SmtUtils]: Spent 15.63s 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 00:55:13,279 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 00:55:13,280 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 00:55:13,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:13,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:14,364 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 00:55:14,365 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 00:55:14,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:14,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:14,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:15,605 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 00:55:15,606 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 00:55:17,401 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:17,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:17,893 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 00:55:17,893 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 00:55:18,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:18,509 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-21 00:55:18,510 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 00:55:19,377 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:19,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,386 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:19,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,406 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:19,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:19,493 INFO L244 Elim1Store]: Index analysis took 116 ms [2021-11-21 00:55:19,494 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 00:55:20,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,427 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:20,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,443 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:20,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:20,518 INFO L244 Elim1Store]: Index analysis took 109 ms [2021-11-21 00:55:20,520 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 00:55:20,865 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:21,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:21,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,302 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:21,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:21,361 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 00:55:21,670 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:22,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,034 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:22,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,050 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:22,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:22,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:22,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,178 INFO L244 Elim1Store]: Index analysis took 165 ms [2021-11-21 00:55:22,180 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 00:55:22,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:22,812 INFO L244 Elim1Store]: Index analysis took 211 ms [2021-11-21 00:55:24,317 INFO L354 Elim1Store]: treesize reduction 582, result has 68.4 percent of original size [2021-11-21 00:55:24,317 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 00:55:26,815 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:26,834 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:26,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:26,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:26,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:26,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:26,924 INFO L244 Elim1Store]: Index analysis took 112 ms [2021-11-21 00:55:27,107 INFO L354 Elim1Store]: treesize reduction 23, result has 66.7 percent of original size [2021-11-21 00:55:27,108 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 00:55:27,577 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:29,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:29,106 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:29,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:29,152 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:29,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:29,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:29,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:29,270 INFO L244 Elim1Store]: Index analysis took 185 ms [2021-11-21 00:55:29,412 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:55:29,412 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 00:55:29,630 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:30,345 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:30,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:30,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:30,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:30,401 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 00:55:30,660 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:31,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:31,528 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:55:31,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:31,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:31,603 INFO L244 Elim1Store]: Index analysis took 101 ms [2021-11-21 00:55:31,790 INFO L354 Elim1Store]: treesize reduction 1152, result has 0.1 percent of original size [2021-11-21 00:55:31,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 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 00:55:31,961 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:34,027 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 00:55:34,027 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 00:55:34,815 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:35,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:35,630 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 00:55:35,631 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 00:55:36,142 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:55:36,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:36,680 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 00:55:42,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:55:42,636 INFO L190 IndexEqualityManager]: detected not equals via solver