./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/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 e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:28:36,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:28:36,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:28:36,169 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:28:36,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:28:36,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:28:36,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:28:36,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:28:36,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:28:36,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:28:36,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:28:36,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:28:36,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:28:36,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:28:36,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:28:36,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:28:36,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:28:36,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:28:36,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:28:36,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:28:36,201 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:28:36,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:28:36,205 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:28:36,206 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:28:36,210 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:28:36,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:28:36,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:28:36,212 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:28:36,213 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:28:36,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:28:36,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:28:36,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:28:36,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:28:36,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:28:36,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:28:36,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:28:36,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:28:36,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:28:36,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:28:36,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:28:36,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:28:36,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:28:36,252 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:28:36,252 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:28:36,252 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:28:36,253 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:28:36,253 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:28:36,254 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:28:36,254 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:28:36,254 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:28:36,254 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:28:36,255 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:28:36,255 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:28:36,255 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:28:36,255 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:28:36,256 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:28:36,256 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:28:36,256 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:28:36,256 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:28:36,257 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:28:36,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:28:36,258 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:28:36,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:28:36,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:28:36,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:28:36,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:28:36,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:28:36,259 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:28:36,259 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:28:36,260 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:28:36,260 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:28:36,260 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:28:36,260 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:28:36,261 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:28:36,261 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:28:36,261 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:28:36,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:36,262 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:28:36,262 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:28:36,262 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:28:36,262 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:28:36,262 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:28:36,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:28:36,263 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:28:36,263 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:28:36,263 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2021-11-21 00:28:36,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:28:36,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:28:36,547 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:28:36,548 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:28:36,549 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:28:36,550 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2021-11-21 00:28:36,622 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/data/d12c1306b/f623d3727bb3427a9c07c97f2273737b/FLAG421a078e9 [2021-11-21 00:28:37,502 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:28:37,503 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2021-11-21 00:28:37,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/data/d12c1306b/f623d3727bb3427a9c07c97f2273737b/FLAG421a078e9 [2021-11-21 00:28:37,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/data/d12c1306b/f623d3727bb3427a9c07c97f2273737b [2021-11-21 00:28:37,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:28:37,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:28:37,549 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:37,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:28:37,554 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:28:37,555 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:37" (1/1) ... [2021-11-21 00:28:37,559 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bafec82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:37, skipping insertion in model container [2021-11-21 00:28:37,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:28:37" (1/1) ... [2021-11-21 00:28:37,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:28:37,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:28:38,391 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[44118,44131] [2021-11-21 00:28:38,402 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[44660,44673] [2021-11-21 00:28:38,552 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[56247,56260] [2021-11-21 00:28:38,559 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[56368,56381] [2021-11-21 00:28:38,586 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:38,597 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:28:38,669 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[44118,44131] [2021-11-21 00:28:38,673 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[44660,44673] [2021-11-21 00:28:38,770 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[56247,56260] [2021-11-21 00:28:38,771 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_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i[56368,56381] [2021-11-21 00:28:38,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:28:38,943 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:28:38,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38 WrapperNode [2021-11-21 00:28:38,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:28:38,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:38,946 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:28:38,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:28:38,956 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,041 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,158 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2021-11-21 00:28:39,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:28:39,160 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:28:39,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:28:39,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:28:39,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,195 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:28:39,349 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:28:39,349 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:28:39,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:28:39,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (1/1) ... [2021-11-21 00:28:39,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:28:39,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:39,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:28:39,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:28:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:28:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:28:39,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:28:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:28:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 00:28:39,457 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 00:28:39,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:28:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:28:39,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:28:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:28:39,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:28:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:28:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 00:28:39,459 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 00:28:39,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:28:39,460 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 00:28:39,460 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 00:28:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:28:39,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:28:39,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:28:39,767 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:28:39,792 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:28:40,896 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:28:41,520 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:28:41,520 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 00:28:41,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:41 BoogieIcfgContainer [2021-11-21 00:28:41,526 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:28:41,530 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:28:41,530 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:28:41,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:28:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:28:37" (1/3) ... [2021-11-21 00:28:41,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97de72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:41, skipping insertion in model container [2021-11-21 00:28:41,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:28:38" (2/3) ... [2021-11-21 00:28:41,535 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f97de72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:28:41, skipping insertion in model container [2021-11-21 00:28:41,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:28:41" (3/3) ... [2021-11-21 00:28:41,539 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test6-2.i [2021-11-21 00:28:41,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:28:41,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 00:28:41,605 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:28:41,611 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 00:28:41,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 00:28:41,634 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 00:28:41,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:28:41,637 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:41,637 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:28:41,638 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 00:28:41,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:41,644 INFO L85 PathProgramCache]: Analyzing trace with hash 31387996, now seen corresponding path program 1 times [2021-11-21 00:28:41,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:41,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072229357] [2021-11-21 00:28:41,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:41,656 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:41,767 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:41,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2049445367] [2021-11-21 00:28:41,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:41,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:41,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:41,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:41,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:28:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:41,983 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 00:28:41,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:42,057 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 00:28:42,098 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:28:42,099 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 00:28:42,120 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 00:28:42,276 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 00:28:42,326 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 00:28:46,441 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:28:46,442 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 00:28:46,453 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:28:46,454 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 00:28:46,468 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 00:28:46,482 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 00:28:46,482 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:46,482 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:46,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072229357] [2021-11-21 00:28:46,483 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:46,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049445367] [2021-11-21 00:28:46,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049445367] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:46,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:46,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:28:46,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134888396] [2021-11-21 00:28:46,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:46,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:46,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:46,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:46,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:46,522 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 00:28:47,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:47,177 INFO L93 Difference]: Finished difference Result 354 states and 563 transitions. [2021-11-21 00:28:47,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:47,182 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 00:28:47,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:47,192 INFO L225 Difference]: With dead ends: 354 [2021-11-21 00:28:47,193 INFO L226 Difference]: Without dead ends: 178 [2021-11-21 00:28:47,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:47,200 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:47,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 481 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 65 Unchecked, 0.6s Time] [2021-11-21 00:28:47,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-21 00:28:47,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-21 00:28:47,249 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 00:28:47,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-11-21 00:28:47,256 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 4 [2021-11-21 00:28:47,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:47,256 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-11-21 00:28:47,257 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 00:28:47,257 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-11-21 00:28:47,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 00:28:47,259 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:47,259 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 00:28:47,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:28:47,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:47,483 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 00:28:47,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:47,484 INFO L85 PathProgramCache]: Analyzing trace with hash -2011390594, now seen corresponding path program 1 times [2021-11-21 00:28:47,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:47,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124819936] [2021-11-21 00:28:47,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:47,485 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:47,509 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:47,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1254739845] [2021-11-21 00:28:47,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:47,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:47,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:47,510 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:47,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:28:47,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:47,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:28:47,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:47,825 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 00:28:47,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:47,825 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:47,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124819936] [2021-11-21 00:28:47,826 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:47,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254739845] [2021-11-21 00:28:47,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254739845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:47,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:47,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:28:47,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963455527] [2021-11-21 00:28:47,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:47,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:47,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:47,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:47,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:47,829 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 00:28:49,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:49,251 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2021-11-21 00:28:49,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:28:49,256 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 00:28:49,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:49,260 INFO L225 Difference]: With dead ends: 311 [2021-11-21 00:28:49,260 INFO L226 Difference]: Without dead ends: 309 [2021-11-21 00:28:49,261 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 00:28:49,263 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 139 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:49,263 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:28:49,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-21 00:28:49,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2021-11-21 00:28:49,291 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 00:28:49,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 363 transitions. [2021-11-21 00:28:49,294 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 363 transitions. Word has length 18 [2021-11-21 00:28:49,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:49,295 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 363 transitions. [2021-11-21 00:28:49,295 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 00:28:49,295 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 363 transitions. [2021-11-21 00:28:49,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 00:28:49,296 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:49,297 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 00:28:49,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:28:49,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:49,511 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 00:28:49,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:49,512 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401060, now seen corresponding path program 1 times [2021-11-21 00:28:49,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:49,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323200208] [2021-11-21 00:28:49,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:49,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:49,537 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:49,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1492888388] [2021-11-21 00:28:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:49,538 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:49,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:49,539 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:49,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:28:49,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:49,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:28:49,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:49,841 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 00:28:49,841 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:49,842 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:49,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323200208] [2021-11-21 00:28:49,842 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:49,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492888388] [2021-11-21 00:28:49,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492888388] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:49,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:49,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:28:49,847 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47508637] [2021-11-21 00:28:49,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:49,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:49,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:49,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:49,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:49,857 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 00:28:51,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:51,696 INFO L93 Difference]: Finished difference Result 537 states and 655 transitions. [2021-11-21 00:28:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:28:51,709 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 00:28:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:51,713 INFO L225 Difference]: With dead ends: 537 [2021-11-21 00:28:51,713 INFO L226 Difference]: Without dead ends: 535 [2021-11-21 00:28:51,714 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 00:28:51,715 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 174 mSDsluCounter, 405 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s 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, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:51,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 535 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 00:28:51,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-21 00:28:51,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 524. [2021-11-21 00:28:51,757 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 00:28:51,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 652 transitions. [2021-11-21 00:28:51,771 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 652 transitions. Word has length 19 [2021-11-21 00:28:51,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:51,771 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 652 transitions. [2021-11-21 00:28:51,771 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 00:28:51,771 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 652 transitions. [2021-11-21 00:28:51,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 00:28:51,773 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:51,773 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 00:28:51,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:28:51,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:51,975 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 00:28:51,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:51,975 INFO L85 PathProgramCache]: Analyzing trace with hash 949063289, now seen corresponding path program 1 times [2021-11-21 00:28:51,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:51,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935303633] [2021-11-21 00:28:51,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:51,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:52,059 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 00:28:52,060 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:52,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935303633] [2021-11-21 00:28:52,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935303633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:52,060 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:52,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:28:52,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185199997] [2021-11-21 00:28:52,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:52,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:28:52,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:52,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:28:52,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:28:52,062 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 00:28:53,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:53,664 INFO L93 Difference]: Finished difference Result 871 states and 1093 transitions. [2021-11-21 00:28:53,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:28:53,668 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 00:28:53,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:53,674 INFO L225 Difference]: With dead ends: 871 [2021-11-21 00:28:53,674 INFO L226 Difference]: Without dead ends: 702 [2021-11-21 00:28:53,675 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 00:28:53,676 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 67 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s 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, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:53,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 489 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 00:28:53,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2021-11-21 00:28:53,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 524. [2021-11-21 00:28:53,714 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 00:28:53,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 524 states and 651 transitions. [2021-11-21 00:28:53,723 INFO L78 Accepts]: Start accepts. Automaton has 524 states and 651 transitions. Word has length 24 [2021-11-21 00:28:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:53,724 INFO L470 AbstractCegarLoop]: Abstraction has 524 states and 651 transitions. [2021-11-21 00:28:53,724 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 00:28:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 524 states and 651 transitions. [2021-11-21 00:28:53,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 00:28:53,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:53,728 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 00:28:53,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 00:28:53,728 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 00:28:53,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:53,729 INFO L85 PathProgramCache]: Analyzing trace with hash -12375280, now seen corresponding path program 1 times [2021-11-21 00:28:53,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:53,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274943209] [2021-11-21 00:28:53,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:53,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:53,770 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:53,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130111344] [2021-11-21 00:28:53,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:53,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:53,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:53,780 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:53,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:28:54,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:54,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:28:54,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:54,112 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 00:28:54,112 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:54,112 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:54,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274943209] [2021-11-21 00:28:54,113 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:54,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130111344] [2021-11-21 00:28:54,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130111344] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:54,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:54,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:28:54,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537735630] [2021-11-21 00:28:54,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:54,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:28:54,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:54,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:28:54,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:28:54,114 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 00:28:57,088 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:28:57,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:57,246 INFO L93 Difference]: Finished difference Result 550 states and 671 transitions. [2021-11-21 00:28:57,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:28:57,252 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 00:28:57,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:57,257 INFO L225 Difference]: With dead ends: 550 [2021-11-21 00:28:57,257 INFO L226 Difference]: Without dead ends: 549 [2021-11-21 00:28:57,258 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 00:28:57,259 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s 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, 3.1s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:57,259 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2021-11-21 00:28:57,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2021-11-21 00:28:57,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 539. [2021-11-21 00:28:57,312 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 00:28:57,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 668 transitions. [2021-11-21 00:28:57,317 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 668 transitions. Word has length 27 [2021-11-21 00:28:57,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:57,318 INFO L470 AbstractCegarLoop]: Abstraction has 539 states and 668 transitions. [2021-11-21 00:28:57,318 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 00:28:57,318 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 668 transitions. [2021-11-21 00:28:57,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:28:57,319 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:57,320 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 00:28:57,366 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:28:57,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:57,533 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 00:28:57,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:57,534 INFO L85 PathProgramCache]: Analyzing trace with hash -383633619, now seen corresponding path program 1 times [2021-11-21 00:28:57,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:57,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078346237] [2021-11-21 00:28:57,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:57,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:57,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:57,569 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1697932416] [2021-11-21 00:28:57,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:57,570 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:57,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:57,571 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:57,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 00:28:57,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:57,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 00:28:57,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:57,921 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 00:28:57,921 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:57,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:57,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078346237] [2021-11-21 00:28:57,922 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:57,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1697932416] [2021-11-21 00:28:57,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1697932416] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:57,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:57,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 00:28:57,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930047759] [2021-11-21 00:28:57,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:57,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:28:57,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:57,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:28:57,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:28:57,928 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 00:28:58,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:28:58,904 INFO L93 Difference]: Finished difference Result 539 states and 668 transitions. [2021-11-21 00:28:58,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:28:58,910 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 00:28:58,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:28:58,915 INFO L225 Difference]: With dead ends: 539 [2021-11-21 00:28:58,915 INFO L226 Difference]: Without dead ends: 538 [2021-11-21 00:28:58,915 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 00:28:58,916 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:28:58,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 172 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:28:58,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2021-11-21 00:28:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2021-11-21 00:28:58,955 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 00:28:58,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 666 transitions. [2021-11-21 00:28:58,960 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 666 transitions. Word has length 28 [2021-11-21 00:28:58,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:28:58,961 INFO L470 AbstractCegarLoop]: Abstraction has 538 states and 666 transitions. [2021-11-21 00:28:58,961 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 00:28:58,961 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 666 transitions. [2021-11-21 00:28:58,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:28:58,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:28:58,963 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 00:28:59,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 00:28:59,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-21 00:28:59,179 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 00:28:59,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:28:59,179 INFO L85 PathProgramCache]: Analyzing trace with hash -259574453, now seen corresponding path program 1 times [2021-11-21 00:28:59,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:28:59,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863959298] [2021-11-21 00:28:59,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:59,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:28:59,218 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:28:59,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996206888] [2021-11-21 00:28:59,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:28:59,227 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:28:59,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:28:59,228 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:28:59,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 00:28:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:28:59,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:28:59,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:28:59,617 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 00:28:59,617 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:28:59,618 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:28:59,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863959298] [2021-11-21 00:28:59,618 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:28:59,618 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996206888] [2021-11-21 00:28:59,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996206888] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:28:59,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:28:59,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:28:59,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100048436] [2021-11-21 00:28:59,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:28:59,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:28:59,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:28:59,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:28:59,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:28:59,621 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 00:29:01,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:01,038 INFO L93 Difference]: Finished difference Result 1000 states and 1234 transitions. [2021-11-21 00:29:01,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:29:01,043 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 00:29:01,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:01,047 INFO L225 Difference]: With dead ends: 1000 [2021-11-21 00:29:01,047 INFO L226 Difference]: Without dead ends: 467 [2021-11-21 00:29:01,049 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 00:29:01,050 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s 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, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:01,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 00:29:01,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-11-21 00:29:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 415. [2021-11-21 00:29:01,080 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 00:29:01,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 504 transitions. [2021-11-21 00:29:01,084 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 504 transitions. Word has length 28 [2021-11-21 00:29:01,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:01,085 INFO L470 AbstractCegarLoop]: Abstraction has 415 states and 504 transitions. [2021-11-21 00:29:01,085 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 00:29:01,085 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 504 transitions. [2021-11-21 00:29:01,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 00:29:01,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:01,087 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 00:29:01,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 00:29:01,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 00:29:01,299 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 00:29:01,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:01,299 INFO L85 PathProgramCache]: Analyzing trace with hash 107922983, now seen corresponding path program 1 times [2021-11-21 00:29:01,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:01,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938510501] [2021-11-21 00:29:01,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:01,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:01,321 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:29:01,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1831582933] [2021-11-21 00:29:01,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:01,322 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:01,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:29:01,325 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:29:01,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 00:29:01,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:01,562 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 00:29:01,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:29:01,720 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 00:29:01,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:29:01,945 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 00:29:01,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:01,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938510501] [2021-11-21 00:29:01,945 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:29:01,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831582933] [2021-11-21 00:29:01,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831582933] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:29:01,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2063962133] [2021-11-21 00:29:01,971 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 00:29:01,971 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:29:01,976 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:29:01,982 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:29:01,983 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:29:02,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,087 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:29:02,118 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:29:02,118 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 00:29:02,134 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 00:29:02,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,187 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 00:29:02,193 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 00:29:02,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,237 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 00:29:02,315 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 00:29:02,325 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 00:29:02,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,362 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 00:29:02,362 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 00:29:02,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,440 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:29:02,441 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 00:29:02,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,695 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:29:02,696 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 00:29:02,762 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 00:29:02,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,787 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:29:02,787 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 00:29:02,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:02,837 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 00:29:02,854 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 40 treesize of output 39 [2021-11-21 00:29:02,965 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 00:29:03,285 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 00:29:03,332 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 19 treesize of output 1 [2021-11-21 00:29:03,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,429 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 00:29:03,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:03,442 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 00:29:05,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,861 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 00:29:05,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,921 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 00:29:05,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,951 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 00:29:05,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,973 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 00:29:05,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:05,998 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 00:29:06,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,131 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 00:29:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,245 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 00:29:06,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,311 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 00:29:06,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,474 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:29:06,475 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 00:29:06,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,530 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:29:06,531 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 00:29:06,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,572 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 00:29:06,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:06,593 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 00:29:07,010 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 00:29:07,031 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 00:29:07,035 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 00:29:07,064 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 00:29:07,081 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 00:29:07,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,199 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 00:29:07,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,239 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:29:07,239 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 00:29:07,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,263 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 00:29:07,282 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 00:29:07,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,340 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 00:29:07,340 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 00:29:07,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,378 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 00:29:07,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,451 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:29:07,452 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 00:29:07,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,817 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:29:07,817 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 00:29:07,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,882 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:29:07,882 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 00:29:07,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,903 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 00:29:07,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,937 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:29:07,938 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 00:29:07,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:07,959 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 00:29:07,970 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 00:29:08,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:08,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:08,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:08,065 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 00:29:08,258 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 00:29:08,259 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 00:29:08,275 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 00:29:08,292 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 00:29:10,325 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 00:29:11,396 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:29:12,443 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:29:15,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2063962133] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:15,790 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:29:15,790 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 00:29:15,791 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881607989] [2021-11-21 00:29:15,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:15,791 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 00:29:15,791 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:15,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 00:29:15,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 00:29:15,793 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 00:29:20,056 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:29:21,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:21,786 INFO L93 Difference]: Finished difference Result 819 states and 998 transitions. [2021-11-21 00:29:21,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 00:29:21,787 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 00:29:21,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:21,789 INFO L225 Difference]: With dead ends: 819 [2021-11-21 00:29:21,789 INFO L226 Difference]: Without dead ends: 412 [2021-11-21 00:29:21,791 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 00:29:21,791 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 14 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s 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, 5.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:21,792 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1113 Invalid, 900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 440 Invalid, 0 Unknown, 446 Unchecked, 5.9s Time] [2021-11-21 00:29:21,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-11-21 00:29:21,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 412. [2021-11-21 00:29:21,811 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 00:29:21,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 499 transitions. [2021-11-21 00:29:21,813 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 499 transitions. Word has length 34 [2021-11-21 00:29:21,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:21,814 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 499 transitions. [2021-11-21 00:29:21,814 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 00:29:21,814 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 499 transitions. [2021-11-21 00:29:21,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 00:29:21,815 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:21,815 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 00:29:21,852 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 00:29:22,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:22,031 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 00:29:22,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:22,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1157443849, now seen corresponding path program 1 times [2021-11-21 00:29:22,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:22,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550031403] [2021-11-21 00:29:22,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:22,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:22,057 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:29:22,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2055849969] [2021-11-21 00:29:22,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:22,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:22,060 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:29:22,061 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:29:22,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 00:29:22,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:22,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:29:22,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:29:22,357 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 00:29:22,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:29:22,357 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:22,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550031403] [2021-11-21 00:29:22,357 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:29:22,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055849969] [2021-11-21 00:29:22,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055849969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:22,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:29:22,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:29:22,359 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109416552] [2021-11-21 00:29:22,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:22,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:29:22,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:22,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:29:22,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:29:22,361 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 00:29:26,446 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:29:26,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:26,641 INFO L93 Difference]: Finished difference Result 760 states and 929 transitions. [2021-11-21 00:29:26,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:29:26,646 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 00:29:26,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:26,651 INFO L225 Difference]: With dead ends: 760 [2021-11-21 00:29:26,652 INFO L226 Difference]: Without dead ends: 758 [2021-11-21 00:29:26,652 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 00:29:26,653 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 184 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:26,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 798 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 141 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-21 00:29:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2021-11-21 00:29:26,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 746. [2021-11-21 00:29:26,687 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 00:29:26,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 922 transitions. [2021-11-21 00:29:26,691 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 922 transitions. Word has length 37 [2021-11-21 00:29:26,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:26,691 INFO L470 AbstractCegarLoop]: Abstraction has 746 states and 922 transitions. [2021-11-21 00:29:26,691 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 00:29:26,692 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 922 transitions. [2021-11-21 00:29:26,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 00:29:26,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:26,693 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 00:29:26,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 00:29:26,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:26,907 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 00:29:26,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:26,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1785745275, now seen corresponding path program 1 times [2021-11-21 00:29:26,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:26,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880175359] [2021-11-21 00:29:26,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:26,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:26,934 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:29:26,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1066927057] [2021-11-21 00:29:26,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:26,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:26,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:29:26,936 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:29:26,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 00:29:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:27,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:29:27,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:29:27,333 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 00:29:27,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:29:27,509 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 00:29:27,509 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:27,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880175359] [2021-11-21 00:29:27,510 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:29:27,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066927057] [2021-11-21 00:29:27,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066927057] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:29:27,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1454082803] [2021-11-21 00:29:27,514 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:29:27,514 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:29:27,514 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:29:27,515 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:29:27,515 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:29:27,539 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 00:29:27,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,561 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:29:27,583 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 00:29:27,583 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 00:29:27,594 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 00:29:27,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,630 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 00:29:27,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,669 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 00:29:27,675 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 00:29:27,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,773 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:29:27,773 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 00:29:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:27,810 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 00:29:27,839 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 00:29:27,999 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 00:29:28,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,065 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 00:29:28,066 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 00:29:28,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,147 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:29:28,147 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 00:29:28,159 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 00:29:28,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,250 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 00:29:28,250 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 00:29:28,294 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 15 treesize of output 1 [2021-11-21 00:29:28,613 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 00:29:28,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,705 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 00:29:28,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:28,716 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 00:29:28,788 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 00:29:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,788 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 00:29:30,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,882 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 00:29:30,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,906 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 00:29:30,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,926 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 00:29:30,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:30,945 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 00:29:31,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,047 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 00:29:31,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,121 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 00:29:31,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,161 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 00:29:31,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,345 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:29:31,345 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 00:29:31,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,414 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:29:31,414 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 00:29:31,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,439 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 00:29:31,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:31,467 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 00:29:31,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 00:29:31,891 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 00:29:31,896 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 00:29:32,010 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 00:29:32,022 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 00:29:32,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,096 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 00:29:32,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,112 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 00:29:32,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,162 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:29:32,162 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 00:29:32,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,231 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 00:29:32,232 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 00:29:32,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,251 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 00:29:32,275 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 00:29:32,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,347 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 00:29:32,348 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 00:29:32,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,755 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 00:29:32,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,782 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 00:29:32,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,862 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:29:32,862 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 00:29:32,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,947 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 00:29:32,947 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 00:29:32,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:32,980 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:29:32,981 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 00:29:32,993 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 00:29:33,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:33,012 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 00:29:33,184 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 00:29:33,198 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 00:29:33,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 00:29:34,901 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 00:29:35,862 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 00:29:37,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,315 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:37,315 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 00:29:37,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:37,328 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:37,328 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 00:29:37,374 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:29:37,375 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 00:29:38,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,070 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:38,071 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 00:29:38,107 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:29:38,107 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 00:29:38,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:38,123 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:38,124 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 00:29:39,198 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 00:29:39,199 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 00:29:39,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,226 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:39,227 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 00:29:39,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:39,246 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:29:39,246 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 00:29:39,455 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 00:29:39,708 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 00:29:44,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1454082803] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:29:44,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 00:29:44,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 00:29:44,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163975823] [2021-11-21 00:29:44,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:29:44,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 00:29:44,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:29:44,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 00:29:44,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:29:44,207 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 00:29:54,009 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 00:29:55,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:29:55,706 INFO L93 Difference]: Finished difference Result 1464 states and 1817 transitions. [2021-11-21 00:29:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 00:29:55,707 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 00:29:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:29:55,711 INFO L225 Difference]: With dead ends: 1464 [2021-11-21 00:29:55,711 INFO L226 Difference]: Without dead ends: 748 [2021-11-21 00:29:55,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 00:29:55,714 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 12 mSDsluCounter, 1924 mSDsCounter, 0 mSdLazyCounter, 936 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 2011 SdHoareTripleChecker+Invalid, 1808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 866 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2021-11-21 00:29:55,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 2011 Invalid, 1808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 936 Invalid, 0 Unknown, 866 Unchecked, 11.4s Time] [2021-11-21 00:29:55,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2021-11-21 00:29:55,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 748. [2021-11-21 00:29:55,749 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 00:29:55,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 924 transitions. [2021-11-21 00:29:55,753 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 924 transitions. Word has length 46 [2021-11-21 00:29:55,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:29:55,754 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 924 transitions. [2021-11-21 00:29:55,754 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 00:29:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 924 transitions. [2021-11-21 00:29:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 00:29:55,755 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:29:55,755 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 00:29:55,793 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 00:29:55,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-21 00:29:55,968 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 00:29:55,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:29:55,969 INFO L85 PathProgramCache]: Analyzing trace with hash 930438946, now seen corresponding path program 1 times [2021-11-21 00:29:55,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:29:55,969 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235818098] [2021-11-21 00:29:55,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:55,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:29:56,001 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:29:56,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [722402290] [2021-11-21 00:29:56,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:29:56,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:29:56,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:29:56,004 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:29:56,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3175fb94-ffc8-4fc6-9a4a-60734a05f66a/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 00:29:56,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:29:56,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:29:56,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:29:56,325 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 00:29:56,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:29:56,480 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 00:29:56,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:29:56,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235818098] [2021-11-21 00:29:56,481 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:29:56,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722402290] [2021-11-21 00:29:56,481 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722402290] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:29:56,481 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1979850030] [2021-11-21 00:29:56,484 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:29:56,484 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:29:56,485 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:29:56,485 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:29:56,485 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:29:56,520 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 00:29:56,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,565 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 00:29:56,565 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 00:29:56,591 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 00:29:56,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,627 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:29:56,627 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 00:29:56,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,668 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 00:29:56,673 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 00:29:56,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,841 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 00:29:56,841 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 00:29:56,894 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 00:29:56,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:56,954 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 00:29:56,955 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 00:29:57,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,104 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 00:29:57,105 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 00:29:57,151 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 00:29:57,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,188 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,228 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 00:29:57,228 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 00:29:57,297 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 00:29:57,572 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 00:29:57,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,660 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 00:29:57,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:57,671 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 00:29:57,731 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 00:29:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,768 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 00:29:59,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,786 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 00:29:59,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,810 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 00:29:59,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:29:59,827 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 00:30:00,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,021 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 00:30:00,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,112 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 00:30:00,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,222 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,242 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:30:00,243 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 00:30:00,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,276 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 00:30:00,276 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 00:30:00,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,307 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 00:30:00,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,330 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 00:30:00,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,440 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 00:30:00,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:00,518 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 00:30:00,869 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 00:30:00,874 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 00:30:00,878 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 00:30:00,951 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 00:30:00,962 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 00:30:01,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,031 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 00:30:01,031 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 00:30:01,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,052 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 00:30:01,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,082 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 00:30:01,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,170 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:30:01,171 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 00:30:01,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,260 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:30:01,261 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 00:30:01,272 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 00:30:01,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,290 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 00:30:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,687 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 00:30:01,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,781 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 00:30:01,781 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 00:30:01,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,829 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 00:30:01,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,867 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:30:01,867 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 00:30:01,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,885 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 00:30:01,897 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 00:30:01,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:01,928 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 00:30:01,929 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 00:30:02,039 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 00:30:02,225 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 00:30:02,270 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 00:30:02,886 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 00:30:02,919 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 00:30:02,934 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 00:30:03,004 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 00:30:03,005 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 00:30:03,037 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:30:03,038 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 00:30:03,061 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 00:30:03,062 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 00:30:03,211 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 00:30:03,229 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 00:30:03,245 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 00:30:03,339 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 00:30:03,370 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 00:30:03,951 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 00:30:03,966 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 00:30:05,997 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:30:05,998 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 00:30:06,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:07,909 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:30:07,910 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 00:30:09,494 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-21 00:30:09,494 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 00:30:10,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:10,200 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 00:30:10,200 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 00:30:10,285 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 00:30:10,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:30:10,725 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 00:30:10,726 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 00:34:18,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:34:18,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:34:42,328 WARN L227 SmtUtils]: Spent 23.36s 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 00:34:42,329 INFO L354 Elim1Store]: treesize reduction 838, result has 27.9 percent of original size [2021-11-21 00:34:42,330 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 00:40:28,783 INFO L244 Elim1Store]: Index analysis took 163 ms [2021-11-21 00:40:28,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:40:29,274 INFO L190 IndexEqualityManager]: detected not equals via solver