./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:47:19,015 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:47:19,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:47:19,083 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:47:19,084 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:47:19,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:47:19,093 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:47:19,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:47:19,102 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:47:19,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:47:19,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:47:19,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:47:19,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:47:19,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:47:19,120 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:47:19,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:47:19,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:47:19,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:47:19,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:47:19,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:47:19,146 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:47:19,148 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:47:19,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:47:19,153 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:47:19,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:47:19,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:47:19,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:47:19,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:47:19,167 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:47:19,168 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:47:19,169 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:47:19,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:47:19,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:47:19,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:47:19,175 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:47:19,175 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:47:19,176 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:47:19,176 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:47:19,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:47:19,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:47:19,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:47:19,180 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:47:19,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:47:19,233 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:47:19,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:47:19,234 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:47:19,235 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:47:19,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:47:19,236 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:47:19,236 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:47:19,237 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:47:19,237 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:47:19,238 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:47:19,239 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:47:19,239 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:47:19,239 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:47:19,239 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:47:19,240 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:47:19,240 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:47:19,240 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:47:19,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:47:19,242 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:47:19,242 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:47:19,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:47:19,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:47:19,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:47:19,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:47:19,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:47:19,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:47:19,246 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:47:19,246 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:47:19,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:47:19,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:47:19,247 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:47:19,247 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:47:19,248 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:47:19,248 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:47:19,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:47:19,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:47:19,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:47:19,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:47:19,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:47:19,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:47:19,250 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:47:19,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:47:19,250 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1d2a98d270a821b4275b6b35f502458543f3a892fcdda158c69925a18d34f6cf [2021-11-21 00:47:19,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:47:19,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:47:19,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:47:19,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:47:19,683 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:47:19,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-21 00:47:19,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/data/9c364bc2a/d524569c84f84daf88f587a19e5a86da/FLAG7ca65bebc [2021-11-21 00:47:20,501 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:47:20,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i [2021-11-21 00:47:20,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/data/9c364bc2a/d524569c84f84daf88f587a19e5a86da/FLAG7ca65bebc [2021-11-21 00:47:20,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/data/9c364bc2a/d524569c84f84daf88f587a19e5a86da [2021-11-21 00:47:20,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:47:20,661 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:47:20,663 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:47:20,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:47:20,668 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:47:20,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:20" (1/1) ... [2021-11-21 00:47:20,670 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1980d181 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:20, skipping insertion in model container [2021-11-21 00:47:20,670 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:47:20" (1/1) ... [2021-11-21 00:47:20,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:47:20,745 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:47:21,414 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-21 00:47:21,428 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-21 00:47:21,557 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-21 00:47:21,558 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-21 00:47:21,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:47:21,582 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:47:21,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44118,44131] [2021-11-21 00:47:21,628 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[44660,44673] [2021-11-21 00:47:21,697 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56247,56260] [2021-11-21 00:47:21,708 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_fde45fe2-b91d-4b5c-b573-f2d289ca5936/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test6-2.i[56368,56381] [2021-11-21 00:47:21,723 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:47:21,799 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:47:21,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21 WrapperNode [2021-11-21 00:47:21,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:47:21,801 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:47:21,801 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:47:21,801 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:47:21,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:21,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:21,952 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2021-11-21 00:47:21,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:47:21,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:47:21,962 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:47:21,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:47:21,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:21,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:21,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:21,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:22,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:22,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:22,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:22,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:47:22,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:47:22,142 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:47:22,142 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:47:22,143 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (1/1) ... [2021-11-21 00:47:22,153 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:47:22,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:22,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:47:22,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:47:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:47:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 00:47:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 00:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:47:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:47:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:47:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:47:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 00:47:22,248 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 00:47:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:47:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 00:47:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 00:47:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:47:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:47:22,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:47:22,601 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:47:22,603 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:47:23,813 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:47:24,380 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:47:24,380 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 00:47:24,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:47:24 BoogieIcfgContainer [2021-11-21 00:47:24,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:47:24,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:47:24,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:47:24,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:47:24,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:47:20" (1/3) ... [2021-11-21 00:47:24,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b012293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:47:24, skipping insertion in model container [2021-11-21 00:47:24,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:47:21" (2/3) ... [2021-11-21 00:47:24,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b012293 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:47:24, skipping insertion in model container [2021-11-21 00:47:24,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:47:24" (3/3) ... [2021-11-21 00:47:24,402 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test6-2.i [2021-11-21 00:47:24,407 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:47:24,408 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 00:47:24,471 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:47:24,483 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 00:47:24,483 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 00:47:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 00:47:24,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:47:24,512 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:24,513 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:47:24,513 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:24,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:24,523 INFO L85 PathProgramCache]: Analyzing trace with hash 31387996, now seen corresponding path program 1 times [2021-11-21 00:47:24,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:24,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234831754] [2021-11-21 00:47:24,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:24,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:24,677 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:24,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [619615032] [2021-11-21 00:47:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:24,679 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:24,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:24,681 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:24,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:47:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:24,898 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 00:47:24,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:24,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:47:25,022 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:47:25,024 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2021-11-21 00:47:25,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 00:47:25,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:47:25,301 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 7 treesize of output 3 [2021-11-21 00:47:29,449 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:47:29,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2021-11-21 00:47:29,461 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:47:29,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2021-11-21 00:47:29,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-21 00:47:29,491 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 00:47:29,492 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:29,492 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:29,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234831754] [2021-11-21 00:47:29,493 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:29,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619615032] [2021-11-21 00:47:29,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619615032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:29,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:29,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:47:29,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083946812] [2021-11-21 00:47:29,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:29,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:47:29,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:29,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:47:29,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:47:29,530 INFO L87 Difference]: Start difference. First operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:30,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:30,558 INFO L93 Difference]: Finished difference Result 354 states and 563 transitions. [2021-11-21 00:47:30,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:47:30,564 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 00:47:30,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:30,574 INFO L225 Difference]: With dead ends: 354 [2021-11-21 00:47:30,574 INFO L226 Difference]: Without dead ends: 178 [2021-11-21 00:47:30,578 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:47:30,581 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:30,582 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 481 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 65 Unchecked, 0.9s Time] [2021-11-21 00:47:30,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-21 00:47:30,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-21 00:47:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-21 00:47:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-11-21 00:47:30,636 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 4 [2021-11-21 00:47:30,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:30,637 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-11-21 00:47:30,637 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:30,637 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-11-21 00:47:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:47:30,639 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:30,640 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:30,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-21 00:47:30,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:47:30,856 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:30,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:30,857 INFO L85 PathProgramCache]: Analyzing trace with hash -2011390594, now seen corresponding path program 1 times [2021-11-21 00:47:30,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:30,857 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97793406] [2021-11-21 00:47:30,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:30,858 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:30,884 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:30,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [620244555] [2021-11-21 00:47:30,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:30,885 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:30,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:30,886 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:30,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:47:31,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:31,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:47:31,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:31,161 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 00:47:31,161 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:31,161 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:31,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97793406] [2021-11-21 00:47:31,162 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:31,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620244555] [2021-11-21 00:47:31,162 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620244555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:31,162 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:31,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:47:31,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37258156] [2021-11-21 00:47:31,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:31,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:47:31,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:31,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:47:31,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:47:31,165 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:33,063 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2021-11-21 00:47:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:47:33,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 00:47:33,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:33,072 INFO L225 Difference]: With dead ends: 311 [2021-11-21 00:47:33,072 INFO L226 Difference]: Without dead ends: 309 [2021-11-21 00:47:33,072 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 00:47:33,074 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 139 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:33,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-11-21 00:47:33,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-21 00:47:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2021-11-21 00:47:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 255 states have (on average 1.2352941176470589) internal successors, (315), 270 states have internal predecessors, (315), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-21 00:47:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 363 transitions. [2021-11-21 00:47:33,117 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 363 transitions. Word has length 18 [2021-11-21 00:47:33,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:33,117 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 363 transitions. [2021-11-21 00:47:33,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:33,118 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 363 transitions. [2021-11-21 00:47:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 00:47:33,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:33,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:33,159 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:47:33,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:33,339 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:33,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:33,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401060, now seen corresponding path program 1 times [2021-11-21 00:47:33,340 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:33,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543411099] [2021-11-21 00:47:33,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:33,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:33,380 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:33,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611688595] [2021-11-21 00:47:33,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:33,381 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:33,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:33,384 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:33,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:47:33,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:33,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:47:33,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:33,669 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 00:47:33,669 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:33,669 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:33,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543411099] [2021-11-21 00:47:33,670 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:33,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611688595] [2021-11-21 00:47:33,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611688595] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:33,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:33,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:47:33,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687669963] [2021-11-21 00:47:33,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:33,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:47:33,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:33,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:47:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:47:33,681 INFO L87 Difference]: Start difference. First operand 299 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:34,958 INFO L93 Difference]: Finished difference Result 537 states and 655 transitions. [2021-11-21 00:47:34,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:47:34,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-21 00:47:34,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:34,971 INFO L225 Difference]: With dead ends: 537 [2021-11-21 00:47:34,971 INFO L226 Difference]: Without dead ends: 535 [2021-11-21 00:47:34,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 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 00:47:34,974 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 174 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:34,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:47:34,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-21 00:47:35,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 524. [2021-11-21 00:47:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.2352941176470589) internal successors, (567), 477 states have internal predecessors, (567), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 00:47:35,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 652 transitions. [2021-11-21 00:47:35,040 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 652 transitions. Word has length 19 [2021-11-21 00:47:35,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:35,041 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 652 transitions. [2021-11-21 00:47:35,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:35,041 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 652 transitions. [2021-11-21 00:47:35,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 00:47:35,043 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:35,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:35,070 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:47:35,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:35,244 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:35,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:35,244 INFO L85 PathProgramCache]: Analyzing trace with hash 949063289, now seen corresponding path program 1 times [2021-11-21 00:47:35,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:35,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969565168] [2021-11-21 00:47:35,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:35,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:35,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:35,321 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 00:47:35,321 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:35,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969565168] [2021-11-21 00:47:35,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969565168] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:35,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:35,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:47:35,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761711342] [2021-11-21 00:47:35,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:35,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:47:35,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:35,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:47:35,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:47:35,324 INFO L87 Difference]: Start difference. First operand 524 states and 652 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:37,820 INFO L93 Difference]: Finished difference Result 871 states and 1093 transitions. [2021-11-21 00:47:37,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:47:37,824 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 00:47:37,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:37,830 INFO L225 Difference]: With dead ends: 871 [2021-11-21 00:47:37,830 INFO L226 Difference]: Without dead ends: 702 [2021-11-21 00:47:37,832 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 00:47:37,833 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 67 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:37,834 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 00:47:37,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-21 00:47:37,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 524. [2021-11-21 00:47:37,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 524 states, 459 states have (on average 1.233115468409586) internal successors, (566), 477 states have internal predecessors, (566), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 00:47:37,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 651 transitions. [2021-11-21 00:47:37,874 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 651 transitions. Word has length 24 [2021-11-21 00:47:37,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:37,874 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 651 transitions. [2021-11-21 00:47:37,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:47:37,875 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 651 transitions. [2021-11-21 00:47:37,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:47:37,876 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:37,876 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:37,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:47:37,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:37,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:37,877 INFO L85 PathProgramCache]: Analyzing trace with hash -12375280, now seen corresponding path program 1 times [2021-11-21 00:47:37,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:37,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147765475] [2021-11-21 00:47:37,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:37,878 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:37,897 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:37,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110051555] [2021-11-21 00:47:37,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:37,898 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:37,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:37,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:37,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:47:38,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:38,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:47:38,137 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:47:38,252 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:38,252 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:38,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147765475] [2021-11-21 00:47:38,252 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:38,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110051555] [2021-11-21 00:47:38,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110051555] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:38,253 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:38,253 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:47:38,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953133222] [2021-11-21 00:47:38,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:38,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:47:38,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:47:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:47:38,255 INFO L87 Difference]: Start difference. First operand 524 states and 651 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 00:47:38,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:38,954 INFO L93 Difference]: Finished difference Result 550 states and 671 transitions. [2021-11-21 00:47:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:47:38,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-21 00:47:38,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:38,962 INFO L225 Difference]: With dead ends: 550 [2021-11-21 00:47:38,962 INFO L226 Difference]: Without dead ends: 549 [2021-11-21 00:47:38,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 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 00:47:38,964 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:38,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-21 00:47:38,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-11-21 00:47:38,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 539. [2021-11-21 00:47:38,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 469 states have (on average 1.2302771855010661) internal successors, (577), 488 states have internal predecessors, (577), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 00:47:38,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 668 transitions. [2021-11-21 00:47:38,999 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 668 transitions. Word has length 27 [2021-11-21 00:47:38,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:38,999 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 668 transitions. [2021-11-21 00:47:38,999 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 00:47:39,000 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 668 transitions. [2021-11-21 00:47:39,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:47:39,001 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:39,001 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:39,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:47:39,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:39,227 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:39,227 INFO L85 PathProgramCache]: Analyzing trace with hash -383633619, now seen corresponding path program 1 times [2021-11-21 00:47:39,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:39,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128319387] [2021-11-21 00:47:39,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:39,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:39,262 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:39,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2147133868] [2021-11-21 00:47:39,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:39,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:39,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:39,270 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:39,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:47:39,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:39,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:47:39,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:39,562 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 00:47:39,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:39,562 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:39,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128319387] [2021-11-21 00:47:39,563 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:39,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2147133868] [2021-11-21 00:47:39,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2147133868] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:39,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:39,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:47:39,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479126420] [2021-11-21 00:47:39,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:39,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:47:39,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:39,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:47:39,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:47:39,568 INFO L87 Difference]: Start difference. First operand 539 states and 668 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 00:47:40,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:40,217 INFO L93 Difference]: Finished difference Result 539 states and 668 transitions. [2021-11-21 00:47:40,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:47:40,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-21 00:47:40,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:40,229 INFO L225 Difference]: With dead ends: 539 [2021-11-21 00:47:40,229 INFO L226 Difference]: Without dead ends: 538 [2021-11-21 00:47:40,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 00:47:40,230 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:40,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 172 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-21 00:47:40,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-21 00:47:40,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-21 00:47:40,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 469 states have (on average 1.2260127931769722) internal successors, (575), 487 states have internal predecessors, (575), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 00:47:40,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 666 transitions. [2021-11-21 00:47:40,275 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 666 transitions. Word has length 28 [2021-11-21 00:47:40,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:40,275 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 666 transitions. [2021-11-21 00:47:40,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 00:47:40,276 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 666 transitions. [2021-11-21 00:47:40,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:47:40,277 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:40,277 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:40,308 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:47:40,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 00:47:40,491 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:40,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:40,492 INFO L85 PathProgramCache]: Analyzing trace with hash -259574453, now seen corresponding path program 1 times [2021-11-21 00:47:40,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:40,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564791990] [2021-11-21 00:47:40,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:40,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:40,514 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:40,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1467953382] [2021-11-21 00:47:40,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:40,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:40,515 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:40,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:40,527 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:47:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:40,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:47:40,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:40,880 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 00:47:40,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:47:40,881 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:40,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564791990] [2021-11-21 00:47:40,881 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:40,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467953382] [2021-11-21 00:47:40,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467953382] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:40,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:47:40,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:47:40,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65172934] [2021-11-21 00:47:40,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:40,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:47:40,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:40,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:47:40,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:47:40,884 INFO L87 Difference]: Start difference. First operand 538 states and 666 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 00:47:42,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:47:42,078 INFO L93 Difference]: Finished difference Result 1000 states and 1234 transitions. [2021-11-21 00:47:42,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:47:42,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 00:47:42,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:47:42,084 INFO L225 Difference]: With dead ends: 1000 [2021-11-21 00:47:42,085 INFO L226 Difference]: Without dead ends: 467 [2021-11-21 00:47:42,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 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 00:47:42,089 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:47:42,089 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 00:47:42,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-21 00:47:42,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 415. [2021-11-21 00:47:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 363 states have (on average 1.2148760330578512) internal successors, (441), 379 states have internal predecessors, (441), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 00:47:42,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 504 transitions. [2021-11-21 00:47:42,113 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 504 transitions. Word has length 28 [2021-11-21 00:47:42,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:47:42,114 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 504 transitions. [2021-11-21 00:47:42,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 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 00:47:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 504 transitions. [2021-11-21 00:47:42,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:47:42,115 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:47:42,116 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:47:42,143 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:47:42,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 00:47:42,330 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:47:42,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:47:42,330 INFO L85 PathProgramCache]: Analyzing trace with hash 107922983, now seen corresponding path program 1 times [2021-11-21 00:47:42,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:47:42,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268927142] [2021-11-21 00:47:42,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:42,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:47:42,348 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:47:42,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463297240] [2021-11-21 00:47:42,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:47:42,348 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:47:42,348 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:47:42,355 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:47:42,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 00:47:42,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:47:42,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:47:42,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:47:42,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:47:42,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:47:43,029 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:47:43,029 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:47:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268927142] [2021-11-21 00:47:43,029 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:47:43,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463297240] [2021-11-21 00:47:43,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463297240] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:47:43,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [837691416] [2021-11-21 00:47:43,052 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 00:47:43,052 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:47:43,057 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:47:43,062 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:47:43,063 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:47:43,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,139 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:47:43,160 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:47:43,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 00:47:43,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 00:47:43,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-21 00:47:43,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:47:43,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,250 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 37 treesize of output 27 [2021-11-21 00:47:43,319 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 15 treesize of output 1 [2021-11-21 00:47:43,332 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 15 treesize of output 1 [2021-11-21 00:47:43,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,376 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 00:47:43,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 00:47:43,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,454 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:47:43,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:47:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,722 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:47:43,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 00:47:43,795 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 15 treesize of output 1 [2021-11-21 00:47:43,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,825 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:47:43,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 00:47:43,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:43,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 43 treesize of output 45 [2021-11-21 00:47:43,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 00:47:44,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:47:44,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:47:44,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:47:44,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-21 00:47:44,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:44,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 00:47:46,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 00:47:46,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-21 00:47:46,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-21 00:47:46,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:46,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 00:47:47,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 00:47:47,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,142 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 00:47:47,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,255 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 00:47:47,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,330 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 00:47:47,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,517 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:47:47,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-21 00:47:47,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,570 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:47:47,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-21 00:47:47,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 00:47:47,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:47,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 00:47:48,018 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 00:47:48,027 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 25 treesize of output 1 [2021-11-21 00:47:48,032 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 25 treesize of output 1 [2021-11-21 00:47:48,063 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 00:47:48,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-21 00:47:48,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,177 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 28 treesize of output 10 [2021-11-21 00:47:48,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,225 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:47:48,225 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 76 treesize of output 70 [2021-11-21 00:47:48,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 57 treesize of output 43 [2021-11-21 00:47:48,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:47:48,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,339 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 00:47:48,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:47:48,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 00:47:48,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,449 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:47:48,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:47:48,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,892 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:47:48,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 00:47:48,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,953 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:47:48,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:47:48,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,972 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 28 treesize of output 10 [2021-11-21 00:47:48,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:48,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,002 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:47:49,002 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 00:47:49,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 30 [2021-11-21 00:47:49,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 00:47:49,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:47:49,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 00:47:49,313 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 00:47:49,313 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 306 treesize of output 272 [2021-11-21 00:47:49,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 287 treesize of output 283 [2021-11-21 00:47:49,369 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 328 treesize of output 324 [2021-11-21 00:47:51,411 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 00:47:52,615 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:47:53,804 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:47:57,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [837691416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:47:57,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:47:57,148 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 00:47:57,149 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069883711] [2021-11-21 00:47:57,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:47:57,149 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 00:47:57,149 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:47:57,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 00:47:57,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 00:47:57,151 INFO L87 Difference]: Start difference. First operand 415 states and 504 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:48:01,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:01,220 INFO L93 Difference]: Finished difference Result 819 states and 998 transitions. [2021-11-21 00:48:01,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:48:01,221 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-21 00:48:01,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:01,224 INFO L225 Difference]: With dead ends: 819 [2021-11-21 00:48:01,224 INFO L226 Difference]: Without dead ends: 412 [2021-11-21 00:48:01,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 00:48:01,227 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1113 SdHoareTripleChecker+Invalid, 900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 446 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:01,227 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 440 Invalid, 0 Unknown, 446 Unchecked, 4.0s Time] [2021-11-21 00:48:01,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-21 00:48:01,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-21 00:48:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.211111111111111) internal successors, (436), 375 states have internal predecessors, (436), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 00:48:01,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 499 transitions. [2021-11-21 00:48:01,251 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 499 transitions. Word has length 34 [2021-11-21 00:48:01,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:01,251 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 499 transitions. [2021-11-21 00:48:01,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:48:01,252 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 499 transitions. [2021-11-21 00:48:01,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 00:48:01,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:01,252 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:01,290 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:01,466 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:48:01,467 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:48:01,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:01,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1157443849, now seen corresponding path program 1 times [2021-11-21 00:48:01,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:01,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925086343] [2021-11-21 00:48:01,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:01,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:01,486 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:48:01,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2114871102] [2021-11-21 00:48:01,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:01,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:48:01,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:48:01,496 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:48:01,522 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 00:48:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:01,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:48:01,751 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:01,838 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 00:48:01,839 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:48:01,839 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:01,839 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925086343] [2021-11-21 00:48:01,839 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:48:01,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2114871102] [2021-11-21 00:48:01,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2114871102] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:01,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:48:01,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:48:01,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034357491] [2021-11-21 00:48:01,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:01,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:48:01,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:48:01,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:48:01,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:48:01,846 INFO L87 Difference]: Start difference. First operand 412 states and 499 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 00:48:04,708 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:48:04,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:04,893 INFO L93 Difference]: Finished difference Result 760 states and 929 transitions. [2021-11-21 00:48:04,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:48:04,897 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-21 00:48:04,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:04,901 INFO L225 Difference]: With dead ends: 760 [2021-11-21 00:48:04,901 INFO L226 Difference]: Without dead ends: 758 [2021-11-21 00:48:04,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 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 00:48:04,903 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 184 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:04,903 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 798 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-11-21 00:48:04,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-21 00:48:04,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 746. [2021-11-21 00:48:04,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 668 states have (on average 1.2110778443113772) internal successors, (809), 684 states have internal predecessors, (809), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-21 00:48:04,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 922 transitions. [2021-11-21 00:48:04,954 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 922 transitions. Word has length 37 [2021-11-21 00:48:04,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:04,955 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 922 transitions. [2021-11-21 00:48:04,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 00:48:04,955 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 922 transitions. [2021-11-21 00:48:04,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:48:04,963 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:04,963 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:05,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:05,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:48:05,176 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:48:05,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:05,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1785745275, now seen corresponding path program 1 times [2021-11-21 00:48:05,177 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:05,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840113983] [2021-11-21 00:48:05,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:05,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:05,197 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:48:05,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410422959] [2021-11-21 00:48:05,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:05,211 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:48:05,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:48:05,215 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:48:05,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 00:48:05,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:05,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:48:05,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:05,589 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:48:05,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:05,777 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 00:48:05,777 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:05,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840113983] [2021-11-21 00:48:05,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:48:05,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410422959] [2021-11-21 00:48:05,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410422959] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:48:05,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [464238977] [2021-11-21 00:48:05,781 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:48:05,781 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:48:05,781 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:48:05,782 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:48:05,782 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:48:05,809 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 00:48:05,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:05,829 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:48:05,845 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:48:05,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 00:48:05,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 00:48:05,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:05,886 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 23 treesize of output 17 [2021-11-21 00:48:05,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:05,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-21 00:48:05,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-21 00:48:05,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:05,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:05,991 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:48:05,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:48:06,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,020 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 00:48:06,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:48:06,204 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 15 treesize of output 1 [2021-11-21 00:48:06,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,271 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:48:06,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 00:48:06,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,349 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:48:06,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 43 treesize of output 45 [2021-11-21 00:48:06,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 00:48:06,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,440 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:48:06,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 00:48:06,475 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 15 treesize of output 1 [2021-11-21 00:48:06,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:48:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-21 00:48:06,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:06,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 00:48:06,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:48:08,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,767 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 00:48:08,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-21 00:48:08,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 88 treesize of output 82 [2021-11-21 00:48:08,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 00:48:08,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:08,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 00:48:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,038 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 00:48:09,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,099 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 00:48:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,150 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 00:48:09,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,317 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:48:09,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-21 00:48:09,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,382 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:48:09,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-21 00:48:09,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 00:48:09,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:09,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 00:48:09,837 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 25 treesize of output 1 [2021-11-21 00:48:09,841 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 25 treesize of output 1 [2021-11-21 00:48:09,847 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 00:48:09,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 00:48:09,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-21 00:48:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,053 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 28 treesize of output 10 [2021-11-21 00:48:10,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,066 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 28 treesize of output 10 [2021-11-21 00:48:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,106 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:48:10,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:48:10,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,161 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:48:10,161 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 76 treesize of output 70 [2021-11-21 00:48:10,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 57 treesize of output 43 [2021-11-21 00:48:10,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 00:48:10,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,289 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:48:10,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:48:10,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,640 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 28 treesize of output 10 [2021-11-21 00:48:10,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,670 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 28 treesize of output 10 [2021-11-21 00:48:10,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,744 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:48:10,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 00:48:10,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,832 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:48:10,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:48:10,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,869 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:48:10,869 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 00:48:10,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 00:48:10,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:10,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 31 treesize of output 17 [2021-11-21 00:48:11,045 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 234 treesize of output 230 [2021-11-21 00:48:11,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 253 [2021-11-21 00:48:11,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:48:12,633 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 00:48:13,720 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:48:15,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,044 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:15,044 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 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-21 00:48:15,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,056 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:15,056 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 3 case distinctions, treesize of input 172 treesize of output 156 [2021-11-21 00:48:15,098 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:48:15,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 147 treesize of output 139 [2021-11-21 00:48:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,657 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:15,657 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 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-21 00:48:15,687 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:48:15,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 164 [2021-11-21 00:48:15,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:15,716 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:15,716 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 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 00:48:16,737 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:48:16,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 189 [2021-11-21 00:48:16,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:16,756 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 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-21 00:48:16,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:16,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:48:16,772 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 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 00:48:16,954 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 00:48:17,167 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:48:20,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [464238977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:48:20,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:48:20,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 00:48:20,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143686213] [2021-11-21 00:48:20,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:48:20,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 00:48:20,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:48:20,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 00:48:20,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:48:20,951 INFO L87 Difference]: Start difference. First operand 746 states and 922 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 00:48:25,378 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:48:31,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:48:33,531 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:48:34,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:48:34,473 INFO L93 Difference]: Finished difference Result 1464 states and 1817 transitions. [2021-11-21 00:48:34,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 00:48:34,474 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-21 00:48:34,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:48:34,478 INFO L225 Difference]: With dead ends: 1464 [2021-11-21 00:48:34,478 INFO L226 Difference]: Without dead ends: 748 [2021-11-21 00:48:34,480 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:48:34,481 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 12 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 866 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:48:34,482 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2011 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 935 Invalid, 1 Unknown, 866 Unchecked, 13.4s Time] [2021-11-21 00:48:34,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-21 00:48:34,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-11-21 00:48:34,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 670 states have (on average 1.2104477611940299) internal successors, (811), 686 states have internal predecessors, (811), 51 states have call successors, (51), 18 states have call predecessors, (51), 14 states have return successors, (62), 43 states have call predecessors, (62), 51 states have call successors, (62) [2021-11-21 00:48:34,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 924 transitions. [2021-11-21 00:48:34,522 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 924 transitions. Word has length 46 [2021-11-21 00:48:34,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:48:34,523 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 924 transitions. [2021-11-21 00:48:34,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 00:48:34,523 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 924 transitions. [2021-11-21 00:48:34,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 00:48:34,524 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:48:34,524 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:48:34,562 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:48:34,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-21 00:48:34,739 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 00:48:34,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:48:34,739 INFO L85 PathProgramCache]: Analyzing trace with hash 930438946, now seen corresponding path program 1 times [2021-11-21 00:48:34,739 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:48:34,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [586231512] [2021-11-21 00:48:34,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:34,740 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:48:34,764 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:48:34,773 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [942393166] [2021-11-21 00:48:34,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:48:34,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:48:34,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:48:34,774 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:48:34,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fde45fe2-b91d-4b5c-b573-f2d289ca5936/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 00:48:34,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:48:34,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:48:34,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:48:35,092 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:48:35,092 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:48:35,248 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 00:48:35,248 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:48:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [586231512] [2021-11-21 00:48:35,248 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:48:35,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [942393166] [2021-11-21 00:48:35,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [942393166] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:48:35,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1281641884] [2021-11-21 00:48:35,252 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:48:35,252 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:48:35,253 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:48:35,253 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:48:35,253 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:48:35,284 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 15 treesize of output 1 [2021-11-21 00:48:35,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,326 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 00:48:35,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 00:48:35,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 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 00:48:35,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,407 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:48:35,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:48:35,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-21 00:48:35,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-21 00:48:35,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,634 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 00:48:35,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 65 [2021-11-21 00:48:35,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-21 00:48:35,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,725 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:48:35,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2021-11-21 00:48:35,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,859 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 00:48:35,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 46 [2021-11-21 00:48:35,897 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 15 treesize of output 1 [2021-11-21 00:48:35,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:35,973 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 00:48:35,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 00:48:36,058 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 15 treesize of output 1 [2021-11-21 00:48:36,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:48:36,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 77 treesize of output 69 [2021-11-21 00:48:36,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:36,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 00:48:36,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:48:38,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 95 treesize of output 89 [2021-11-21 00:48:38,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-21 00:48:38,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 80 treesize of output 72 [2021-11-21 00:48:38,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 00:48:38,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 00:48:38,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,554 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 00:48:38,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,699 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:48:38,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 114 treesize of output 104 [2021-11-21 00:48:38,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,732 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:48:38,733 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 103 treesize of output 97 [2021-11-21 00:48:38,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 00:48:38,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 00:48:38,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:38,898 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 00:48:39,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,013 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 00:48:39,414 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 00:48:39,420 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 25 treesize of output 1 [2021-11-21 00:48:39,425 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 25 treesize of output 1 [2021-11-21 00:48:39,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 6 treesize of output 5 [2021-11-21 00:48:39,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 00:48:39,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,614 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:48:39,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:48:39,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,642 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 28 treesize of output 10 [2021-11-21 00:48:39,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,689 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 28 treesize of output 10 [2021-11-21 00:48:39,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,750 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:48:39,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 00:48:39,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,813 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:48:39,813 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 00:48:39,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 00:48:39,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:39,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 31 treesize of output 17 [2021-11-21 00:48:40,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,123 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 28 treesize of output 10 [2021-11-21 00:48:40,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,182 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,203 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:48:40,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 00:48:40,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,241 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 28 treesize of output 10 [2021-11-21 00:48:40,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,273 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:48:40,273 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 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 00:48:40,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 44 treesize of output 30 [2021-11-21 00:48:40,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 00:48:40,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:40,328 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:48:40,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 00:48:40,412 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 26 treesize of output 22 [2021-11-21 00:48:40,529 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 13 treesize of output 9 [2021-11-21 00:48:40,559 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 19 treesize of output 1 [2021-11-21 00:48:41,012 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 00:48:41,040 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 00:48:41,052 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 00:48:41,109 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:48:41,110 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 137 treesize of output 136 [2021-11-21 00:48:41,138 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:48:41,138 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 133 treesize of output 132 [2021-11-21 00:48:41,161 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:48:41,162 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 129 treesize of output 128 [2021-11-21 00:48:41,290 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 00:48:41,302 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 00:48:41,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 00:48:41,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 00:48:41,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 00:48:41,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 00:48:41,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 00:48:43,592 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:48:43,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-21 00:48:43,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:44,952 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:48:44,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-21 00:48:46,637 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-21 00:48:46,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1415 treesize of output 1461 [2021-11-21 00:48:47,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:47,381 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 00:48:47,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 00:48:47,467 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:48:47,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:48:47,801 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 00:48:47,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-21 00:52:45,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:52:45,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:11,352 WARN L227 SmtUtils]: Spent 25.84s on a formula simplification. DAG size of input: 167 DAG size of output: 89 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:53:11,353 INFO L354 Elim1Store]: treesize reduction 838, result has 27.9 percent of original size [2021-11-21 00:53:11,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 3643 treesize of output 3482 [2021-11-21 00:58:13,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:58:13,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:00:09,290 WARN L227 SmtUtils]: Spent 1.92m on a formula simplification. DAG size of input: 94 DAG size of output: 70 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:00:09,291 INFO L354 Elim1Store]: treesize reduction 120, result has 64.0 percent of original size [2021-11-21 01:00:09,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 8688 treesize of output 8810