./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7 --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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 20:36:44,241 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 20:36:44,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 20:36:44,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 20:36:44,292 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 20:36:44,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 20:36:44,296 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 20:36:44,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 20:36:44,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 20:36:44,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 20:36:44,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 20:36:44,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 20:36:44,312 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 20:36:44,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 20:36:44,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 20:36:44,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 20:36:44,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 20:36:44,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 20:36:44,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 20:36:44,336 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 20:36:44,341 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 20:36:44,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 20:36:44,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 20:36:44,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 20:36:44,354 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 20:36:44,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 20:36:44,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 20:36:44,361 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 20:36:44,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 20:36:44,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 20:36:44,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 20:36:44,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 20:36:44,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 20:36:44,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 20:36:44,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 20:36:44,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 20:36:44,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 20:36:44,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 20:36:44,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 20:36:44,372 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 20:36:44,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 20:36:44,374 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 20:36:44,404 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 20:36:44,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 20:36:44,405 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 20:36:44,405 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 20:36:44,406 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 20:36:44,406 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 20:36:44,406 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 20:36:44,406 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 20:36:44,406 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 20:36:44,407 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 20:36:44,408 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 20:36:44,408 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 20:36:44,408 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 20:36:44,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 20:36:44,415 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 20:36:44,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 20:36:44,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 20:36:44,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 20:36:44,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 20:36:44,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 20:36:44,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 20:36:44,418 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 20:36:44,418 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 20:36:44,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 20:36:44,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 20:36:44,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 20:36:44,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 20:36:44,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 20:36:44,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 20:36:44,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:44,420 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 20:36:44,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 20:36:44,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 20:36:44,423 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_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2021-11-25 20:36:44,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 20:36:44,733 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 20:36:44,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 20:36:44,737 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 20:36:44,738 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 20:36:44,739 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2021-11-25 20:36:44,823 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/data/aa62be190/70c3e2d515214f5bae45a6dc18a83d74/FLAG083bb76f4 [2021-11-25 20:36:45,476 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 20:36:45,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2021-11-25 20:36:45,510 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/data/aa62be190/70c3e2d515214f5bae45a6dc18a83d74/FLAG083bb76f4 [2021-11-25 20:36:45,700 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/data/aa62be190/70c3e2d515214f5bae45a6dc18a83d74 [2021-11-25 20:36:45,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 20:36:45,703 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 20:36:45,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:45,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 20:36:45,712 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 20:36:45,713 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:45" (1/1) ... [2021-11-25 20:36:45,714 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a94c438 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:45, skipping insertion in model container [2021-11-25 20:36:45,717 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:36:45" (1/1) ... [2021-11-25 20:36:45,724 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 20:36:45,809 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 20:36:46,350 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44118,44131] [2021-11-25 20:36:46,373 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44660,44673] [2021-11-25 20:36:46,528 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56247,56260] [2021-11-25 20:36:46,529 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56368,56381] [2021-11-25 20:36:46,547 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:46,555 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 20:36:46,595 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44118,44131] [2021-11-25 20:36:46,598 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[44660,44673] [2021-11-25 20:36:46,656 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56247,56260] [2021-11-25 20:36:46,657 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_58260a45-1e2f-4888-b176-909c5da6044d/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i[56368,56381] [2021-11-25 20:36:46,660 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 20:36:46,721 INFO L208 MainTranslator]: Completed translation [2021-11-25 20:36:46,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46 WrapperNode [2021-11-25 20:36:46,722 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 20:36:46,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:46,723 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 20:36:46,723 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 20:36:46,731 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,852 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-25 20:36:46,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 20:36:46,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 20:36:46,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 20:36:46,856 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 20:36:46,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,884 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,986 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:46,998 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 20:36:47,007 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 20:36:47,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 20:36:47,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 20:36:47,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (1/1) ... [2021-11-25 20:36:47,020 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 20:36:47,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:47,042 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 20:36:47,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 20:36:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 20:36:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-25 20:36:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 20:36:47,112 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 20:36:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-25 20:36:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-25 20:36:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 20:36:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 20:36:47,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 20:36:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 20:36:47,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 20:36:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 20:36:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-25 20:36:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-25 20:36:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 20:36:47,114 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-25 20:36:47,114 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-25 20:36:47,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 20:36:47,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 20:36:47,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 20:36:47,387 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 20:36:47,389 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 20:36:48,406 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 20:36:48,710 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 20:36:48,710 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-25 20:36:48,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:48 BoogieIcfgContainer [2021-11-25 20:36:48,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 20:36:48,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 20:36:48,715 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 20:36:48,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 20:36:48,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:36:45" (1/3) ... [2021-11-25 20:36:48,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7098d7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:48, skipping insertion in model container [2021-11-25 20:36:48,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:36:46" (2/3) ... [2021-11-25 20:36:48,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7098d7eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:36:48, skipping insertion in model container [2021-11-25 20:36:48,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:36:48" (3/3) ... [2021-11-25 20:36:48,722 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test6-1.i [2021-11-25 20:36:48,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 20:36:48,728 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-25 20:36:48,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 20:36:48,784 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 [2021-11-25 20:36:48,784 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-25 20:36:48,810 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 20:36:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-25 20:36:48,813 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:48,814 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-25 20:36:48,814 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)] === [2021-11-25 20:36:48,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:48,824 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-25 20:36:48,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:48,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122101582] [2021-11-25 20:36:48,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:48,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:48,990 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:48,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463596565] [2021-11-25 20:36:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:48,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:48,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:48,997 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:49,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 20:36:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:49,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-25 20:36:49,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:49,329 INFO L354 Elim1Store]: treesize reduction 26, result has 42.2 percent of original size [2021-11-25 20:36:49,330 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 36 treesize of output 51 [2021-11-25 20:36:49,343 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 8 treesize of output 7 [2021-11-25 20:36:49,355 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 8 treesize of output 7 [2021-11-25 20:36:49,596 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:36:49,609 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 [2021-11-25 20:36:49,620 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 [2021-11-25 20:36:49,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:36:49,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2021-11-25 20:36:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:49,689 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:49,689 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:49,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122101582] [2021-11-25 20:36:49,690 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:49,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463596565] [2021-11-25 20:36:49,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463596565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:49,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:49,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:49,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081148466] [2021-11-25 20:36:49,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:49,697 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:49,698 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:49,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:49,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:49,738 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) 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) [2021-11-25 20:36:51,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:51,889 INFO L93 Difference]: Finished difference Result 376 states and 608 transitions. [2021-11-25 20:36:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:36:51,902 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 [2021-11-25 20:36:51,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:51,913 INFO L225 Difference]: With dead ends: 376 [2021-11-25 20:36:51,913 INFO L226 Difference]: Without dead ends: 206 [2021-11-25 20:36:51,917 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 [2021-11-25 20:36:51,925 INFO L933 BasicCegarLoop]: 150 mSDtfsCounter, 64 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:51,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 420 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-25 20:36:51,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-11-25 20:36:51,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 153. [2021-11-25 20:36:51,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-25 20:36:52,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-25 20:36:52,007 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-25 20:36:52,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:52,008 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-25 20:36:52,010 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) [2021-11-25 20:36:52,010 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-25 20:36:52,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 20:36:52,012 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:52,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:52,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:52,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 20:36:52,228 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)] === [2021-11-25 20:36:52,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:52,229 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-25 20:36:52,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:52,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225851835] [2021-11-25 20:36:52,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:52,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:52,284 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:52,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1555897833] [2021-11-25 20:36:52,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:52,286 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:52,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:52,287 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:52,304 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 20:36:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:52,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:36:52,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:52,590 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:52,590 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:52,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225851835] [2021-11-25 20:36:52,590 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:52,591 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1555897833] [2021-11-25 20:36:52,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1555897833] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:52,591 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:52,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:52,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595264590] [2021-11-25 20:36:52,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:52,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:52,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:52,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:52,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:52,594 INFO L87 Difference]: Start difference. First operand 153 states and 177 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) [2021-11-25 20:36:54,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:54,174 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-25 20:36:54,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:36:54,177 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 [2021-11-25 20:36:54,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:54,180 INFO L225 Difference]: With dead ends: 261 [2021-11-25 20:36:54,180 INFO L226 Difference]: Without dead ends: 259 [2021-11-25 20:36:54,181 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 [2021-11-25 20:36:54,182 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:54,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-25 20:36:54,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-25 20:36:54,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-25 20:36:54,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-25 20:36:54,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-25 20:36:54,205 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-25 20:36:54,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:54,206 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-25 20:36:54,206 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) [2021-11-25 20:36:54,207 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-25 20:36:54,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-25 20:36:54,207 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:54,208 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 20:36:54,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 20:36:54,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:54,425 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)] === [2021-11-25 20:36:54,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:54,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-25 20:36:54,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:54,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77104241] [2021-11-25 20:36:54,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:54,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:54,488 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:54,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1232055797] [2021-11-25 20:36:54,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:54,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:54,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:54,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:54,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 20:36:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:54,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:36:54,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:54,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:54,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77104241] [2021-11-25 20:36:54,739 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:54,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232055797] [2021-11-25 20:36:54,740 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232055797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:54,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:54,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:36:54,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145682919] [2021-11-25 20:36:54,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:54,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:54,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:54,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:54,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:54,742 INFO L87 Difference]: Start difference. First operand 249 states and 298 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) [2021-11-25 20:36:56,620 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:36:56,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:56,962 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-25 20:36:56,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:36:56,967 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 [2021-11-25 20:36:56,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:56,969 INFO L225 Difference]: With dead ends: 441 [2021-11-25 20:36:56,970 INFO L226 Difference]: Without dead ends: 439 [2021-11-25 20:36:56,970 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 [2021-11-25 20:36:56,972 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:56,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-25 20:36:56,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-25 20:36:57,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-25 20:36:57,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 20:36:57,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-25 20:36:57,010 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-25 20:36:57,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:57,011 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-25 20:36:57,011 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) [2021-11-25 20:36:57,011 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-25 20:36:57,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-25 20:36:57,013 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:57,013 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] [2021-11-25 20:36:57,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 20:36:57,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:57,238 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)] === [2021-11-25 20:36:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-25 20:36:57,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:57,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493619230] [2021-11-25 20:36:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:57,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:57,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:57,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493619230] [2021-11-25 20:36:57,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493619230] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:57,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:57,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:36:57,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84410022] [2021-11-25 20:36:57,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:57,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:36:57,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:57,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:36:57,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:36:57,376 INFO L87 Difference]: Start difference. First operand 428 states and 529 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) [2021-11-25 20:36:59,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:36:59,389 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-25 20:36:59,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 20:36:59,393 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 [2021-11-25 20:36:59,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:36:59,397 INFO L225 Difference]: With dead ends: 682 [2021-11-25 20:36:59,397 INFO L226 Difference]: Without dead ends: 562 [2021-11-25 20:36:59,398 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 [2021-11-25 20:36:59,399 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2021-11-25 20:36:59,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2021-11-25 20:36:59,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-25 20:36:59,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-25 20:36:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-25 20:36:59,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-25 20:36:59,427 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-25 20:36:59,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:36:59,428 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-25 20:36:59,428 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) [2021-11-25 20:36:59,428 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-25 20:36:59,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-25 20:36:59,429 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:36:59,430 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] [2021-11-25 20:36:59,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-25 20:36:59,430 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)] === [2021-11-25 20:36:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:36:59,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-25 20:36:59,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:36:59,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635785566] [2021-11-25 20:36:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:59,431 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:36:59,475 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:36:59,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [141116973] [2021-11-25 20:36:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:36:59,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:36:59,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:36:59,489 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:36:59,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 20:36:59,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:36:59,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:36:59,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:36:59,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:36:59,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:36:59,795 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:36:59,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635785566] [2021-11-25 20:36:59,795 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:36:59,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [141116973] [2021-11-25 20:36:59,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [141116973] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:36:59,796 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:36:59,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:36:59,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777843471] [2021-11-25 20:36:59,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:36:59,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:36:59,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:36:59,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:36:59,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:36:59,799 INFO L87 Difference]: Start difference. First operand 428 states and 528 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) [2021-11-25 20:37:01,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:01,106 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-25 20:37:01,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:01,111 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 [2021-11-25 20:37:01,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:01,115 INFO L225 Difference]: With dead ends: 454 [2021-11-25 20:37:01,115 INFO L226 Difference]: Without dead ends: 453 [2021-11-25 20:37:01,115 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 [2021-11-25 20:37:01,116 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:01,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 20:37:01,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-25 20:37:01,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-25 20:37:01,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 20:37:01,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-25 20:37:01,142 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-25 20:37:01,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:01,143 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-25 20:37:01,143 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) [2021-11-25 20:37:01,143 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-25 20:37:01,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:37:01,144 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:01,145 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] [2021-11-25 20:37:01,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:01,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:01,373 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)] === [2021-11-25 20:37:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:01,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-25 20:37:01,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:01,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114323743] [2021-11-25 20:37:01,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:01,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:01,415 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:01,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [58115726] [2021-11-25 20:37:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:01,427 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:01,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:01,428 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:01,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 20:37:01,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:01,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-25 20:37:01,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:01,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:01,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:01,739 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:01,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114323743] [2021-11-25 20:37:01,739 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:01,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [58115726] [2021-11-25 20:37:01,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [58115726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:01,740 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:01,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 20:37:01,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932565365] [2021-11-25 20:37:01,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:01,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:37:01,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:01,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:37:01,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:01,746 INFO L87 Difference]: Start difference. First operand 443 states and 545 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) [2021-11-25 20:37:02,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:02,432 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-25 20:37:02,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:02,437 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 [2021-11-25 20:37:02,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:02,440 INFO L225 Difference]: With dead ends: 443 [2021-11-25 20:37:02,440 INFO L226 Difference]: Without dead ends: 442 [2021-11-25 20:37:02,441 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 [2021-11-25 20:37:02,442 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:02,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-25 20:37:02,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-25 20:37:02,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-25 20:37:02,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-25 20:37:02,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-25 20:37:02,467 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-25 20:37:02,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:02,467 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-25 20:37:02,468 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) [2021-11-25 20:37:02,468 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-25 20:37:02,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-25 20:37:02,469 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:02,469 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] [2021-11-25 20:37:02,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-11-25 20:37:02,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 20:37:02,697 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)] === [2021-11-25 20:37:02,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:02,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-25 20:37:02,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:02,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852288393] [2021-11-25 20:37:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:02,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:02,804 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:02,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1173712194] [2021-11-25 20:37:02,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:02,805 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:02,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:02,806 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:02,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 20:37:03,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:03,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 1594 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:37:03,373 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:03,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:03,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:03,467 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852288393] [2021-11-25 20:37:03,467 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:03,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173712194] [2021-11-25 20:37:03,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173712194] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:03,467 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:03,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 20:37:03,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450555837] [2021-11-25 20:37:03,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:03,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 20:37:03,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:03,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 20:37:03,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 20:37:03,470 INFO L87 Difference]: Start difference. First operand 442 states and 543 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) [2021-11-25 20:37:04,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:04,941 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-25 20:37:04,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 20:37:04,945 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 [2021-11-25 20:37:04,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:04,947 INFO L225 Difference]: With dead ends: 814 [2021-11-25 20:37:04,948 INFO L226 Difference]: Without dead ends: 377 [2021-11-25 20:37:04,949 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 [2021-11-25 20:37:04,950 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:04,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-25 20:37:04,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-25 20:37:04,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-25 20:37:04,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 20:37:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-25 20:37:04,970 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-25 20:37:04,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:04,970 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-25 20:37:04,971 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) [2021-11-25 20:37:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-25 20:37:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-25 20:37:04,972 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:04,972 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] [2021-11-25 20:37:04,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:05,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-25 20:37:05,189 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)] === [2021-11-25 20:37:05,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:05,189 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-25 20:37:05,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:05,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613499802] [2021-11-25 20:37:05,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:05,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:05,224 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:05,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1013969882] [2021-11-25 20:37:05,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:05,225 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:05,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:05,226 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:05,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 20:37:05,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:05,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 20:37:05,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:05,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:05,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:05,889 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:05,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613499802] [2021-11-25 20:37:05,889 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:05,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1013969882] [2021-11-25 20:37:05,889 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1013969882] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:05,890 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [888364797] [2021-11-25 20:37:05,906 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-25 20:37:05,906 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:05,909 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:05,920 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:05,920 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:06,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,048 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:06,048 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 [2021-11-25 20:37:06,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:37:06,079 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 8 treesize of output 7 [2021-11-25 20:37:06,089 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 15 treesize of output 1 [2021-11-25 20:37:06,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:37:06,107 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 15 treesize of output 1 [2021-11-25 20:37:06,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,201 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:37:06,202 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 [2021-11-25 20:37:06,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-25 20:37:06,236 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 [2021-11-25 20:37:06,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 20:37:06,266 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 [2021-11-25 20:37:06,276 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 [2021-11-25 20:37:06,343 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 [2021-11-25 20:37:06,352 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 [2021-11-25 20:37:06,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 90 treesize of output 78 [2021-11-25 20:37:06,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,390 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 30 treesize of output 34 [2021-11-25 20:37:06,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:37:06,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 110 treesize of output 96 [2021-11-25 20:37:06,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,901 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 48 treesize of output 46 [2021-11-25 20:37:06,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 92 [2021-11-25 20:37:06,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,945 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 44 treesize of output 58 [2021-11-25 20:37:06,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:06,983 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 [2021-11-25 20:37:07,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 123 treesize of output 105 [2021-11-25 20:37:07,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 117 treesize of output 103 [2021-11-25 20:37:07,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,091 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 53 treesize of output 53 [2021-11-25 20:37:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,120 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 57 treesize of output 61 [2021-11-25 20:37:07,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-25 20:37:07,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,172 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 [2021-11-25 20:37:07,307 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 [2021-11-25 20:37:07,311 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 [2021-11-25 20:37:07,315 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 25 treesize of output 1 [2021-11-25 20:37:07,330 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 [2021-11-25 20:37:07,335 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 [2021-11-25 20:37:07,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 20:37:07,415 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 46 treesize of output 30 [2021-11-25 20:37:07,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,435 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 53 treesize of output 27 [2021-11-25 20:37:07,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,452 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 [2021-11-25 20:37:07,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:37:07,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,484 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 [2021-11-25 20:37:07,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 20:37:07,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 20:37:07,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:37:07,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,685 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 [2021-11-25 20:37:07,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,704 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 [2021-11-25 20:37:07,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 74 [2021-11-25 20:37:07,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:07,746 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 35 treesize of output 21 [2021-11-25 20:37:07,758 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 26 treesize of output 16 [2021-11-25 20:37:07,830 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 13 treesize of output 9 [2021-11-25 20:37:07,842 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 [2021-11-25 20:37:07,849 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 13 treesize of output 9 [2021-11-25 20:37:08,051 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 56 for LOIs [2021-11-25 20:37:08,147 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 129 for LOIs [2021-11-25 20:37:08,479 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:37:12,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [888364797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:12,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:37:12,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-25 20:37:12,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852172134] [2021-11-25 20:37:12,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:12,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-25 20:37:12,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:12,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-25 20:37:12,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:37:12,608 INFO L87 Difference]: Start difference. First operand 368 states and 441 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) [2021-11-25 20:37:17,844 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:19,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:20,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:20,076 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-25 20:37:20,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-25 20:37:20,077 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 [2021-11-25 20:37:20,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:20,079 INFO L225 Difference]: With dead ends: 725 [2021-11-25 20:37:20,080 INFO L226 Difference]: Without dead ends: 365 [2021-11-25 20:37:20,081 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 65 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-25 20:37:20,082 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 1291 mSDsCounter, 0 mSdLazyCounter, 649 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1372 SdHoareTripleChecker+Invalid, 1098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 649 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 438 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:20,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1372 Invalid, 1098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 649 Invalid, 0 Unknown, 438 Unchecked, 7.4s Time] [2021-11-25 20:37:20,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-25 20:37:20,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-25 20:37:20,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-25 20:37:20,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-25 20:37:20,105 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-25 20:37:20,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:20,106 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-25 20:37:20,106 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) [2021-11-25 20:37:20,106 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-25 20:37:20,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-25 20:37:20,107 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:20,107 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] [2021-11-25 20:37:20,152 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:20,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:20,326 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)] === [2021-11-25 20:37:20,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:20,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-25 20:37:20,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:20,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210708921] [2021-11-25 20:37:20,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:20,327 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:20,368 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:20,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1600957880] [2021-11-25 20:37:20,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:20,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:20,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:20,370 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:20,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-25 20:37:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:20,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 20:37:20,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:20,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 20:37:20,813 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:20,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210708921] [2021-11-25 20:37:20,813 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:20,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600957880] [2021-11-25 20:37:20,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600957880] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:20,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 20:37:20,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 20:37:20,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126560634] [2021-11-25 20:37:20,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:20,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 20:37:20,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:20,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 20:37:20,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 20:37:20,819 INFO L87 Difference]: Start difference. First operand 365 states and 436 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) [2021-11-25 20:37:22,380 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:23,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:23,538 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-25 20:37:23,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 20:37:23,539 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 [2021-11-25 20:37:23,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:23,544 INFO L225 Difference]: With dead ends: 664 [2021-11-25 20:37:23,544 INFO L226 Difference]: Without dead ends: 662 [2021-11-25 20:37:23,544 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 [2021-11-25 20:37:23,545 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:23,546 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-25 20:37:23,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-25 20:37:23,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-25 20:37:23,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 20:37:23,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-25 20:37:23,581 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-25 20:37:23,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:23,582 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-25 20:37:23,582 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) [2021-11-25 20:37:23,582 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-25 20:37:23,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-25 20:37:23,583 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:23,584 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] [2021-11-25 20:37:23,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:23,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:23,797 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)] === [2021-11-25 20:37:23,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:23,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-25 20:37:23,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:23,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297479205] [2021-11-25 20:37:23,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:23,797 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:23,824 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:23,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2138407846] [2021-11-25 20:37:23,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:23,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:23,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:23,863 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:23,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-25 20:37:24,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:24,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:37:24,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:24,392 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 20:37:24,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:24,595 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-25 20:37:24,595 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:24,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297479205] [2021-11-25 20:37:24,596 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:24,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138407846] [2021-11-25 20:37:24,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138407846] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:24,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [915004643] [2021-11-25 20:37:24,599 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:37:24,599 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:24,600 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:24,600 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:24,600 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:24,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,627 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:24,648 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-25 20:37:24,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 3 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 [2021-11-25 20:37:24,659 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 8 treesize of output 7 [2021-11-25 20:37:24,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 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 [2021-11-25 20:37:24,679 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 [2021-11-25 20:37:24,690 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:24,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,707 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 37 treesize of output 27 [2021-11-25 20:37:24,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,751 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:24,751 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 [2021-11-25 20:37:24,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 [2021-11-25 20:37:24,769 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 15 treesize of output 1 [2021-11-25 20:37:24,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:37:24,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,874 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:37:24,874 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 [2021-11-25 20:37:24,888 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 15 treesize of output 1 [2021-11-25 20:37:24,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 89 treesize of output 81 [2021-11-25 20:37:24,916 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 [2021-11-25 20:37:24,932 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 [2021-11-25 20:37:24,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:24,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 38 [2021-11-25 20:37:25,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 136 treesize of output 114 [2021-11-25 20:37:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,039 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 30 treesize of output 34 [2021-11-25 20:37:25,058 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:25,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 20:37:25,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,509 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 [2021-11-25 20:37:25,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,536 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 [2021-11-25 20:37:25,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 156 treesize of output 132 [2021-11-25 20:37:25,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,588 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 48 treesize of output 46 [2021-11-25 20:37:25,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 154 treesize of output 128 [2021-11-25 20:37:25,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,632 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 44 treesize of output 58 [2021-11-25 20:37:25,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 169 treesize of output 141 [2021-11-25 20:37:25,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 163 treesize of output 139 [2021-11-25 20:37:25,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,750 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 53 treesize of output 53 [2021-11-25 20:37:25,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,776 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 57 treesize of output 61 [2021-11-25 20:37:25,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,802 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 [2021-11-25 20:37:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:25,824 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 [2021-11-25 20:37:26,017 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 [2021-11-25 20:37:26,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 [2021-11-25 20:37:26,025 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 [2021-11-25 20:37:26,061 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 [2021-11-25 20:37:26,065 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 [2021-11-25 20:37:26,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 20:37:26,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 50 treesize of output 42 [2021-11-25 20:37:26,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,166 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 35 treesize of output 21 [2021-11-25 20:37:26,195 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 26 treesize of output 16 [2021-11-25 20:37:26,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,225 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 [2021-11-25 20:37:26,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,238 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 [2021-11-25 20:37:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:37:26,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 20:37:26,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,514 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 [2021-11-25 20:37:26,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,528 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 [2021-11-25 20:37:26,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 150 treesize of output 110 [2021-11-25 20:37:26,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 50 treesize of output 42 [2021-11-25 20:37:26,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,581 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 35 treesize of output 21 [2021-11-25 20:37:26,605 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 26 treesize of output 16 [2021-11-25 20:37:26,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 16 [2021-11-25 20:37:26,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:26,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2021-11-25 20:37:26,741 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 [2021-11-25 20:37:26,762 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 13 treesize of output 9 [2021-11-25 20:37:26,785 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 13 treesize of output 9 [2021-11-25 20:37:27,912 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 80 for LOIs [2021-11-25 20:37:28,020 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 138 for LOIs [2021-11-25 20:37:28,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:37:28,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:37:28,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:28,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 122 [2021-11-25 20:37:29,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:37:29,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 148 treesize of output 122 [2021-11-25 20:37:29,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 31 [2021-11-25 20:37:29,654 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:29,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 153 treesize of output 127 [2021-11-25 20:37:29,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 20:37:29,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2021-11-25 20:37:29,846 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 130 for LOIs [2021-11-25 20:37:29,961 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-25 20:37:35,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [915004643] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 20:37:35,530 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-25 20:37:35,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-25 20:37:35,530 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8995767] [2021-11-25 20:37:35,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 20:37:35,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-25 20:37:35,531 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 20:37:35,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-25 20:37:35,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 20:37:35,533 INFO L87 Difference]: Start difference. First operand 650 states and 795 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) [2021-11-25 20:37:39,116 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:41,439 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:43,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:45,809 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 20:37:46,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 20:37:46,467 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-25 20:37:46,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-25 20:37:46,468 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 [2021-11-25 20:37:46,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 20:37:46,472 INFO L225 Difference]: With dead ends: 1272 [2021-11-25 20:37:46,472 INFO L226 Difference]: Without dead ends: 652 [2021-11-25 20:37:46,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 98 SyntacticMatches, 9 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 519 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-25 20:37:46,475 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 9 mSDsluCounter, 1453 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1533 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 645 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2021-11-25 20:37:46,475 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1533 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 700 Invalid, 1 Unknown, 645 Unchecked, 10.9s Time] [2021-11-25 20:37:46,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-25 20:37:46,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-25 20:37:46,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-25 20:37:46,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-25 20:37:46,509 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-25 20:37:46,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 20:37:46,509 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-25 20:37:46,509 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) [2021-11-25 20:37:46,510 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-25 20:37:46,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-25 20:37:46,510 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 20:37:46,511 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] [2021-11-25 20:37:46,546 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-25 20:37:46,732 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-25 20:37:46,733 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)] === [2021-11-25 20:37:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 20:37:46,733 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-25 20:37:46,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 20:37:46,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423526748] [2021-11-25 20:37:46,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:46,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 20:37:46,772 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 20:37:46,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1633452448] [2021-11-25 20:37:46,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 20:37:46,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 20:37:46,773 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 20:37:46,773 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 20:37:46,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58260a45-1e2f-4888-b176-909c5da6044d/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-25 20:37:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 20:37:47,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 20:37:47,271 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 20:37:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-25 20:37:47,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 20:37:47,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-25 20:37:47,566 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 20:37:47,566 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423526748] [2021-11-25 20:37:47,566 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 20:37:47,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1633452448] [2021-11-25 20:37:47,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1633452448] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 20:37:47,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [123404633] [2021-11-25 20:37:47,570 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-25 20:37:47,570 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 20:37:47,570 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 20:37:47,571 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 20:37:47,571 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 20:37:47,614 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 [2021-11-25 20:37:47,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,653 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 20:37:47,653 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 [2021-11-25 20:37:47,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 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 [2021-11-25 20:37:47,676 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 8 treesize of output 7 [2021-11-25 20:37:47,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-25 20:37:47,697 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 15 treesize of output 1 [2021-11-25 20:37:47,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,772 INFO L354 Elim1Store]: treesize reduction 34, result has 47.7 percent of original size [2021-11-25 20:37:47,772 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 4 case distinctions, treesize of input 43 treesize of output 65 [2021-11-25 20:37:47,796 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 [2021-11-25 20:37:47,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,820 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:47,822 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 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-25 20:37:47,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,903 INFO L354 Elim1Store]: treesize reduction 34, result has 41.4 percent of original size [2021-11-25 20:37:47,903 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 3 case distinctions, treesize of input 27 treesize of output 46 [2021-11-25 20:37:47,917 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 [2021-11-25 20:37:47,938 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 [2021-11-25 20:37:47,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:47,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,004 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-25 20:37:48,005 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 [2021-11-25 20:37:48,070 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 11 [2021-11-25 20:37:48,089 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 [2021-11-25 20:37:48,101 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 [2021-11-25 20:37:48,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-25 20:37:48,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,570 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 [2021-11-25 20:37:48,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,589 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 79 treesize of output 49 [2021-11-25 20:37:48,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 64 [2021-11-25 20:37:48,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,649 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 [2021-11-25 20:37:48,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,663 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 [2021-11-25 20:37:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,695 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2021-11-25 20:37:48,820 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 [2021-11-25 20:37:48,824 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 [2021-11-25 20:37:48,827 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 [2021-11-25 20:37:48,848 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 [2021-11-25 20:37:48,853 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 [2021-11-25 20:37:48,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,896 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 [2021-11-25 20:37:48,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,908 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 [2021-11-25 20:37:48,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:48,926 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 73 treesize of output 37 [2021-11-25 20:37:49,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,073 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 [2021-11-25 20:37:49,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,093 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 [2021-11-25 20:37:49,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,105 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 73 treesize of output 37 [2021-11-25 20:37:49,156 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 [2021-11-25 20:37:49,168 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 [2021-11-25 20:37:49,183 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 13 treesize of output 9 [2021-11-25 20:37:49,252 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 [2021-11-25 20:37:49,256 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 [2021-11-25 20:37:49,262 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 [2021-11-25 20:37:49,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 107 treesize of output 106 [2021-11-25 20:37:49,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 107 treesize of output 106 [2021-11-25 20:37:49,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:49,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 109 treesize of output 108 [2021-11-25 20:37:49,339 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 [2021-11-25 20:37:49,344 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 [2021-11-25 20:37:49,350 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 [2021-11-25 20:37:49,392 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 19 treesize of output 7 [2021-11-25 20:37:49,402 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 40 treesize of output 16 [2021-11-25 20:37:49,492 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 19 treesize of output 7 [2021-11-25 20:37:49,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-25 20:37:51,248 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 20:37:51,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1330 treesize of output 951 [2021-11-25 20:37:51,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:52,780 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 20:37:52,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1387 treesize of output 1153 [2021-11-25 20:37:52,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:54,363 INFO L354 Elim1Store]: treesize reduction 1060, result has 37.8 percent of original size [2021-11-25 20:37:54,363 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 726 treesize of output 805 [2021-11-25 20:37:54,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:54,648 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-25 20:37:54,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-25 20:37:54,681 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:54,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:54,811 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:37:54,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63 [2021-11-25 20:37:54,862 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:54,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:54,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 41 [2021-11-25 20:37:54,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,053 INFO L354 Elim1Store]: treesize reduction 11, result has 56.0 percent of original size [2021-11-25 20:37:55,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 44 [2021-11-25 20:37:55,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,153 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 20:37:55,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 26 [2021-11-25 20:37:55,180 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:55,222 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:37:55,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,226 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 23 treesize of output 13 [2021-11-25 20:37:55,267 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:55,302 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:55,377 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:37:55,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:55,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2021-11-25 20:37:55,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:37:58,392 INFO L354 Elim1Store]: treesize reduction 1396, result has 19.4 percent of original size [2021-11-25 20:37:58,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 22 case distinctions, treesize of input 4880 treesize of output 3839 [2021-11-25 20:37:58,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:00,063 INFO L354 Elim1Store]: treesize reduction 1100, result has 26.4 percent of original size [2021-11-25 20:38:00,065 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 11 new quantified variables, introduced 25 case distinctions, treesize of input 4924 treesize of output 3565 [2021-11-25 20:38:17,468 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:17,491 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:17,717 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:17,893 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:17,956 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,043 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,121 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,278 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,321 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,454 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,472 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,513 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,635 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:18,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,643 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 169 treesize of output 147 [2021-11-25 20:38:18,788 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,902 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:18,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:18,951 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 20:38:18,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 20:38:19,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:19,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:19,254 INFO L354 Elim1Store]: treesize reduction 116, result has 43.4 percent of original size [2021-11-25 20:38:19,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 446 treesize of output 486 [2021-11-25 20:38:20,320 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:20,848 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:20,864 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:38:20,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:20,949 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 20:38:20,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 20:38:22,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,512 INFO L354 Elim1Store]: treesize reduction 140, result has 28.2 percent of original size [2021-11-25 20:38:22,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 396 treesize of output 394 [2021-11-25 20:38:22,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:22,769 INFO L354 Elim1Store]: treesize reduction 94, result has 51.8 percent of original size [2021-11-25 20:38:22,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 5 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 474 treesize of output 514 [2021-11-25 20:38:23,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,094 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:38:23,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,150 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 20:38:23,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 10 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 18 case distinctions, treesize of input 1344 treesize of output 1296 [2021-11-25 20:38:23,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:38:24,116 INFO L354 Elim1Store]: treesize reduction 184, result has 45.4 percent of original size [2021-11-25 20:38:24,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 24 case distinctions, treesize of input 3739 treesize of output 3807 [2021-11-25 20:39:13,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:13,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:14,165 INFO L354 Elim1Store]: treesize reduction 113, result has 64.8 percent of original size [2021-11-25 20:39:14,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 19 case distinctions, treesize of input 455 treesize of output 608 [2021-11-25 20:39:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:39:59,404 INFO L354 Elim1Store]: treesize reduction 27, result has 58.5 percent of original size [2021-11-25 20:39:59,405 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 178 treesize of output 187 [2021-11-25 20:39:59,972 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:00,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,298 INFO L354 Elim1Store]: treesize reduction 14, result has 54.8 percent of original size [2021-11-25 20:40:00,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 166 [2021-11-25 20:40:00,414 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:00,478 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:00,669 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,681 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,684 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 17 [2021-11-25 20:40:00,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:00,787 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:00,863 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-25 20:40:00,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 628 treesize of output 1 [2021-11-25 20:40:01,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:01,654 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 169 treesize of output 147 [2021-11-25 20:40:01,925 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:02,026 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:02,451 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:40:02,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,666 INFO L354 Elim1Store]: treesize reduction 278, result has 0.4 percent of original size [2021-11-25 20:40:02,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 18 case distinctions, treesize of input 922 treesize of output 866 [2021-11-25 20:40:02,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,953 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:02,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 20:40:02,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:02,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:03,023 INFO L354 Elim1Store]: treesize reduction 10, result has 41.2 percent of original size [2021-11-25 20:40:03,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 6 disjoint index pairs (out of 36 index pairs), introduced 6 new quantified variables, introduced 18 case distinctions, treesize of input 1600 treesize of output 1542 [2021-11-25 20:40:04,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:04,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:04,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:04,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:04,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:40:04,370 INFO L354 Elim1Store]: treesize reduction 194, result has 0.5 percent of original size [2021-11-25 20:40:04,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 16 case distinctions, treesize of input 734 treesize of output 670 [2021-11-25 20:40:18,020 WARN L220 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:03,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:03,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:03,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:03,975 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 3 new quantified variables, introduced 0 case distinctions, treesize of input 619 treesize of output 599 [2021-11-25 20:41:04,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,210 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 163 treesize of output 147 [2021-11-25 20:41:04,345 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:04,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:04,995 INFO L354 Elim1Store]: treesize reduction 172, result has 0.6 percent of original size [2021-11-25 20:41:04,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 913 treesize of output 863 [2021-11-25 20:41:05,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,246 INFO L354 Elim1Store]: treesize reduction 176, result has 0.6 percent of original size [2021-11-25 20:41:05,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 12 case distinctions, treesize of input 446 treesize of output 398 [2021-11-25 20:41:05,405 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 20:41:05,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:05,764 INFO L354 Elim1Store]: treesize reduction 216, result has 0.5 percent of original size [2021-11-25 20:41:05,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 17 case distinctions, treesize of input 3730 treesize of output 3652 [2021-11-25 20:41:51,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:51,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 20:41:53,016 INFO L354 Elim1Store]: treesize reduction 616, result has 41.7 percent of original size [2021-11-25 20:41:53,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 6 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 83 case distinctions, treesize of input 226889 treesize of output 218677 [2021-11-25 20:48:18,248 WARN L227 SmtUtils]: Spent 7.46s on a formula simplification that was a NOOP. DAG size: 3464 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)