./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:47:41,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:47:41,836 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:47:41,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:47:41,878 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:47:41,882 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:47:41,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:47:41,888 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:47:41,891 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:47:41,898 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:47:41,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:47:41,902 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:47:41,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:47:41,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:47:41,909 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:47:41,915 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:47:41,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:47:41,922 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:47:41,925 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:47:41,931 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:47:41,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:47:41,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:47:41,939 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:47:41,940 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:47:41,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:47:41,952 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:47:41,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:47:41,954 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:47:41,955 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:47:41,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:47:41,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:47:41,959 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:47:41,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:47:41,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:47:41,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:47:41,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:47:41,966 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:47:41,966 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:47:41,966 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:47:41,967 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:47:41,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:47:41,969 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:47:42,015 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:47:42,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:47:42,019 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:47:42,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:47:42,027 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:47:42,027 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:47:42,027 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:47:42,028 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:47:42,028 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:47:42,028 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:47:42,029 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:47:42,030 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:47:42,030 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:47:42,030 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:47:42,030 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:47:42,031 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:47:42,031 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:47:42,031 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:47:42,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:47:42,033 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:47:42,033 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:47:42,033 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:47:42,033 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:47:42,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:47:42,034 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:47:42,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:47:42,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:47:42,036 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:47:42,036 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:47:42,037 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:47:42,037 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:47:42,037 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:47:42,037 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:47:42,038 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:47:42,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:47:42,038 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:47:42,038 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:47:42,039 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:47:42,039 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:47:42,039 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:47:42,039 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:47:42,040 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:47:42,040 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:47:42,040 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d952a2ac4207d7207b65e88d163e23d18bb81c0593196a835eab903a81ce4e5c [2021-11-21 01:47:42,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:47:42,311 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:47:42,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:47:42,315 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:47:42,316 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:47:42,317 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2021-11-21 01:47:42,415 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/data/a4fbbd984/30a1404b7bd6420ea6107d36e4ac992e/FLAGb794a3a18 [2021-11-21 01:47:43,119 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:47:43,119 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i [2021-11-21 01:47:43,145 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/data/a4fbbd984/30a1404b7bd6420ea6107d36e4ac992e/FLAGb794a3a18 [2021-11-21 01:47:43,397 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/data/a4fbbd984/30a1404b7bd6420ea6107d36e4ac992e [2021-11-21 01:47:43,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:47:43,401 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:47:43,402 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:47:43,403 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:47:43,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:47:43,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:47:43" (1/1) ... [2021-11-21 01:47:43,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49a922ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:43, skipping insertion in model container [2021-11-21 01:47:43,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:47:43" (1/1) ... [2021-11-21 01:47:43,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:47:43,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:47:44,029 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44118,44131] [2021-11-21 01:47:44,039 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44660,44673] [2021-11-21 01:47:44,148 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56247,56260] [2021-11-21 01:47:44,149 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56368,56381] [2021-11-21 01:47:44,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:47:44,193 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:47:44,238 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44118,44131] [2021-11-21 01:47:44,241 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[44660,44673] [2021-11-21 01:47:44,351 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56247,56260] [2021-11-21 01:47:44,360 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_42e8c095-f58c-4657-a3e9-87e39db2fcf9/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test6-2.i[56368,56381] [2021-11-21 01:47:44,373 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:47:44,483 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:47:44,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44 WrapperNode [2021-11-21 01:47:44,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:47:44,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:47:44,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:47:44,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:47:44,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,636 INFO L137 Inliner]: procedures = 282, calls = 347, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1209 [2021-11-21 01:47:44,636 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:47:44,637 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:47:44,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:47:44,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:47:44,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,662 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,662 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,766 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:47:44,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:47:44,819 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:47:44,820 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:47:44,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (1/1) ... [2021-11-21 01:47:44,829 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:47:44,843 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:47:44,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:47:44,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:47:44,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:47:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:47:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:47:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:47:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 01:47:44,923 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 01:47:44,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:47:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:47:44,924 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:47:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:47:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:47:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:47:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 01:47:44,926 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 01:47:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:47:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 01:47:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 01:47:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:47:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:47:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:47:45,312 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:47:45,314 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:47:46,500 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:47:46,960 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:47:46,960 INFO L301 CfgBuilder]: Removed 72 assume(true) statements. [2021-11-21 01:47:46,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:46 BoogieIcfgContainer [2021-11-21 01:47:46,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:47:46,966 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:47:46,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:47:46,970 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:47:46,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:47:43" (1/3) ... [2021-11-21 01:47:46,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f76b664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:46, skipping insertion in model container [2021-11-21 01:47:46,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:47:44" (2/3) ... [2021-11-21 01:47:46,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f76b664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:47:46, skipping insertion in model container [2021-11-21 01:47:46,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:47:46" (3/3) ... [2021-11-21 01:47:46,976 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test6-2.i [2021-11-21 01:47:46,982 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:47:46,983 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 01:47:47,034 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:47:47,041 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:47:47,041 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 01:47:47,087 INFO L276 IsEmpty]: Start isEmpty. Operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:47:47,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:47:47,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:47,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:47:47,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:47:47,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:47,098 INFO L85 PathProgramCache]: Analyzing trace with hash 31387996, now seen corresponding path program 1 times [2021-11-21 01:47:47,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:47,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037490559] [2021-11-21 01:47:47,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:47,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:47,261 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:47:47,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [166962312] [2021-11-21 01:47:47,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:47,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:47:47,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:47:47,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:47:47,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:47:47,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:47,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 01:47:47,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:47:47,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:47:47,643 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:47:47,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 39 treesize of output 50 [2021-11-21 01:47:47,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 49 [2021-11-21 01:47:47,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:47:47,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2021-11-21 01:47:52,010 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:47:52,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 38 [2021-11-21 01:47:52,023 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:47:52,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 35 [2021-11-21 01:47:52,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-11-21 01:47:52,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:47:52,054 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:47:52,054 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:52,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037490559] [2021-11-21 01:47:52,055 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:47:52,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166962312] [2021-11-21 01:47:52,056 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166962312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:52,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:52,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:47:52,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306754160] [2021-11-21 01:47:52,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:52,063 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:47:52,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:52,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:47:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:52,092 INFO L87 Difference]: Start difference. First operand has 176 states, 142 states have (on average 1.7394366197183098) internal successors, (247), 156 states have internal predecessors, (247), 16 states have call successors, (16), 4 states have call predecessors, (16), 4 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:52,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:52,876 INFO L93 Difference]: Finished difference Result 354 states and 563 transitions. [2021-11-21 01:47:52,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:47:52,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 01:47:52,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:52,901 INFO L225 Difference]: With dead ends: 354 [2021-11-21 01:47:52,903 INFO L226 Difference]: Without dead ends: 178 [2021-11-21 01:47:52,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:52,914 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 2 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:52,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 481 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 65 Unchecked, 0.7s Time] [2021-11-21 01:47:52,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2021-11-21 01:47:52,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 177. [2021-11-21 01:47:52,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 144 states have (on average 1.2430555555555556) internal successors, (179), 158 states have internal predecessors, (179), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2021-11-21 01:47:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 209 transitions. [2021-11-21 01:47:52,977 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 209 transitions. Word has length 4 [2021-11-21 01:47:52,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:52,977 INFO L470 AbstractCegarLoop]: Abstraction has 177 states and 209 transitions. [2021-11-21 01:47:52,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:52,978 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 209 transitions. [2021-11-21 01:47:52,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:47:52,980 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:52,980 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:53,019 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:47:53,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:47:53,209 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:47:53,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:53,210 INFO L85 PathProgramCache]: Analyzing trace with hash -2011390594, now seen corresponding path program 1 times [2021-11-21 01:47:53,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:53,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597272471] [2021-11-21 01:47:53,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:53,211 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:53,238 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:47:53,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1404100120] [2021-11-21 01:47:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:53,239 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:47:53,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:47:53,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:47:53,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:47:53,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:53,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:47:53,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:47:53,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:47:53,655 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:47:53,656 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:53,656 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597272471] [2021-11-21 01:47:53,656 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:47:53,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404100120] [2021-11-21 01:47:53,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404100120] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:53,657 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:53,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:47:53,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878840517] [2021-11-21 01:47:53,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:53,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:47:53,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:53,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:47:53,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:53,661 INFO L87 Difference]: Start difference. First operand 177 states and 209 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:55,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:55,066 INFO L93 Difference]: Finished difference Result 311 states and 367 transitions. [2021-11-21 01:47:55,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:47:55,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-21 01:47:55,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:55,076 INFO L225 Difference]: With dead ends: 311 [2021-11-21 01:47:55,076 INFO L226 Difference]: Without dead ends: 309 [2021-11-21 01:47:55,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:47:55,078 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 139 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:55,079 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 528 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:47:55,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2021-11-21 01:47:55,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 299. [2021-11-21 01:47:55,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 255 states have (on average 1.2352941176470589) internal successors, (315), 270 states have internal predecessors, (315), 24 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2021-11-21 01:47:55,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 363 transitions. [2021-11-21 01:47:55,117 INFO L78 Accepts]: Start accepts. Automaton has 299 states and 363 transitions. Word has length 18 [2021-11-21 01:47:55,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:55,118 INFO L470 AbstractCegarLoop]: Abstraction has 299 states and 363 transitions. [2021-11-21 01:47:55,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:55,118 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 363 transitions. [2021-11-21 01:47:55,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:47:55,119 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:55,119 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:55,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:47:55,320 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-21 01:47:55,321 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:47:55,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:55,321 INFO L85 PathProgramCache]: Analyzing trace with hash 2071401060, now seen corresponding path program 1 times [2021-11-21 01:47:55,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:55,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658902959] [2021-11-21 01:47:55,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:55,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:55,346 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:47:55,361 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768054558] [2021-11-21 01:47:55,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:55,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:47:55,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:47:55,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:47:55,386 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:47:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:55,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:47:55,625 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:47:55,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:47:55,687 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:47:55,687 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658902959] [2021-11-21 01:47:55,687 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:47:55,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768054558] [2021-11-21 01:47:55,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768054558] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:55,688 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:55,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:47:55,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476710836] [2021-11-21 01:47:55,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:55,689 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:47:55,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:55,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:47:55,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:55,690 INFO L87 Difference]: Start difference. First operand 299 states and 363 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:58,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:47:58,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:47:58,523 INFO L93 Difference]: Finished difference Result 537 states and 655 transitions. [2021-11-21 01:47:58,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:47:58,524 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-21 01:47:58,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:47:58,528 INFO L225 Difference]: With dead ends: 537 [2021-11-21 01:47:58,528 INFO L226 Difference]: Without dead ends: 535 [2021-11-21 01:47:58,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:47:58,530 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 173 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:47:58,531 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 535 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 101 Invalid, 1 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 01:47:58,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-21 01:47:58,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 521. [2021-11-21 01:47:58,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 456 states have (on average 1.236842105263158) internal successors, (564), 474 states have internal predecessors, (564), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 01:47:58,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 649 transitions. [2021-11-21 01:47:58,610 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 649 transitions. Word has length 19 [2021-11-21 01:47:58,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:47:58,611 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 649 transitions. [2021-11-21 01:47:58,611 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:47:58,611 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 649 transitions. [2021-11-21 01:47:58,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:47:58,618 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:47:58,618 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:47:58,657 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:47:58,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:47:58,833 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:47:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:47:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash 949063289, now seen corresponding path program 1 times [2021-11-21 01:47:58,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:47:58,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325252807] [2021-11-21 01:47:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:47:58,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:47:58,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:47:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:47:58,945 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:47:58,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325252807] [2021-11-21 01:47:58,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325252807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:47:58,949 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:47:58,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:47:58,949 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412391547] [2021-11-21 01:47:58,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:47:58,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:47:58,950 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:47:58,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:47:58,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:47:58,950 INFO L87 Difference]: Start difference. First operand 521 states and 649 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:00,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:00,443 INFO L93 Difference]: Finished difference Result 868 states and 1090 transitions. [2021-11-21 01:48:00,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:48:00,448 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-11-21 01:48:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:00,464 INFO L225 Difference]: With dead ends: 868 [2021-11-21 01:48:00,464 INFO L226 Difference]: Without dead ends: 699 [2021-11-21 01:48:00,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:48:00,468 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 67 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:00,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 496 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:48:00,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states. [2021-11-21 01:48:00,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 521. [2021-11-21 01:48:00,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 456 states have (on average 1.2346491228070176) internal successors, (563), 474 states have internal predecessors, (563), 41 states have call successors, (41), 13 states have call predecessors, (41), 10 states have return successors, (44), 34 states have call predecessors, (44), 41 states have call successors, (44) [2021-11-21 01:48:00,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 648 transitions. [2021-11-21 01:48:00,544 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 648 transitions. Word has length 24 [2021-11-21 01:48:00,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:00,544 INFO L470 AbstractCegarLoop]: Abstraction has 521 states and 648 transitions. [2021-11-21 01:48:00,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:00,546 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 648 transitions. [2021-11-21 01:48:00,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:48:00,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:00,551 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:00,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:48:00,551 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:00,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:00,552 INFO L85 PathProgramCache]: Analyzing trace with hash -12375280, now seen corresponding path program 1 times [2021-11-21 01:48:00,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:00,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714322490] [2021-11-21 01:48:00,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:00,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:00,592 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:00,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [91747538] [2021-11-21 01:48:00,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:00,602 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:00,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:00,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:00,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:48:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:00,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:48:00,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:00,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:00,910 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:00,911 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:00,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714322490] [2021-11-21 01:48:00,911 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:00,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91747538] [2021-11-21 01:48:00,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [91747538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:00,912 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:00,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:48:00,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014016587] [2021-11-21 01:48:00,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:00,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:00,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:00,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:00,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:00,914 INFO L87 Difference]: Start difference. First operand 521 states and 648 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:48:02,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:02,250 INFO L93 Difference]: Finished difference Result 547 states and 668 transitions. [2021-11-21 01:48:02,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:02,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 27 [2021-11-21 01:48:02,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:02,258 INFO L225 Difference]: With dead ends: 547 [2021-11-21 01:48:02,258 INFO L226 Difference]: Without dead ends: 546 [2021-11-21 01:48:02,259 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:02,260 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 144 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:02,260 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 359 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:48:02,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2021-11-21 01:48:02,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 536. [2021-11-21 01:48:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 466 states have (on average 1.2317596566523605) internal successors, (574), 485 states have internal predecessors, (574), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 01:48:02,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 665 transitions. [2021-11-21 01:48:02,296 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 665 transitions. Word has length 27 [2021-11-21 01:48:02,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:02,297 INFO L470 AbstractCegarLoop]: Abstraction has 536 states and 665 transitions. [2021-11-21 01:48:02,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:48:02,297 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 665 transitions. [2021-11-21 01:48:02,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:48:02,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:02,298 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:02,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:02,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:02,525 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting alt_bzeroErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:02,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:02,525 INFO L85 PathProgramCache]: Analyzing trace with hash -383633619, now seen corresponding path program 1 times [2021-11-21 01:48:02,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:02,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827727352] [2021-11-21 01:48:02,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:02,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:02,541 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:02,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [803671576] [2021-11-21 01:48:02,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:02,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:02,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:02,543 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:02,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:48:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:02,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:48:02,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:02,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:02,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:02,851 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:02,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827727352] [2021-11-21 01:48:02,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:02,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803671576] [2021-11-21 01:48:02,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803671576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:02,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:02,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:48:02,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853304030] [2021-11-21 01:48:02,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:02,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:02,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:02,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:02,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:02,855 INFO L87 Difference]: Start difference. First operand 536 states and 665 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:48:04,318 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:04,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:04,489 INFO L93 Difference]: Finished difference Result 536 states and 665 transitions. [2021-11-21 01:48:04,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:04,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 28 [2021-11-21 01:48:04,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:04,499 INFO L225 Difference]: With dead ends: 536 [2021-11-21 01:48:04,499 INFO L226 Difference]: Without dead ends: 535 [2021-11-21 01:48:04,500 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:04,501 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 175 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:04,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [175 Valid, 172 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:48:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 535 states. [2021-11-21 01:48:04,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 535 to 535. [2021-11-21 01:48:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 535 states, 466 states have (on average 1.2274678111587982) internal successors, (572), 484 states have internal predecessors, (572), 44 states have call successors, (44), 15 states have call predecessors, (44), 12 states have return successors, (47), 37 states have call predecessors, (47), 44 states have call successors, (47) [2021-11-21 01:48:04,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 535 states and 663 transitions. [2021-11-21 01:48:04,532 INFO L78 Accepts]: Start accepts. Automaton has 535 states and 663 transitions. Word has length 28 [2021-11-21 01:48:04,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:04,532 INFO L470 AbstractCegarLoop]: Abstraction has 535 states and 663 transitions. [2021-11-21 01:48:04,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:48:04,532 INFO L276 IsEmpty]: Start isEmpty. Operand 535 states and 663 transitions. [2021-11-21 01:48:04,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:48:04,533 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:04,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:04,563 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:04,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:04,749 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:04,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:04,750 INFO L85 PathProgramCache]: Analyzing trace with hash -259574453, now seen corresponding path program 1 times [2021-11-21 01:48:04,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:04,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801103838] [2021-11-21 01:48:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:04,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:04,790 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:04,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988865940] [2021-11-21 01:48:04,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:04,791 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:04,791 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:04,813 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:04,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:48:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:05,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:48:05,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:05,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:05,113 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:05,114 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801103838] [2021-11-21 01:48:05,114 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:05,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988865940] [2021-11-21 01:48:05,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988865940] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:05,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:05,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:48:05,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049673088] [2021-11-21 01:48:05,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:05,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:48:05,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:05,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:48:05,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:05,116 INFO L87 Difference]: Start difference. First operand 535 states and 663 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:06,145 INFO L93 Difference]: Finished difference Result 994 states and 1228 transitions. [2021-11-21 01:48:06,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:48:06,148 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:48:06,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:06,152 INFO L225 Difference]: With dead ends: 994 [2021-11-21 01:48:06,152 INFO L226 Difference]: Without dead ends: 464 [2021-11-21 01:48:06,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:48:06,154 INFO L933 BasicCegarLoop]: 190 mSDtfsCounter, 68 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:06,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 332 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:48:06,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2021-11-21 01:48:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 412. [2021-11-21 01:48:06,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 360 states have (on average 1.2166666666666666) internal successors, (438), 376 states have internal predecessors, (438), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 01:48:06,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 501 transitions. [2021-11-21 01:48:06,180 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 501 transitions. Word has length 28 [2021-11-21 01:48:06,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:06,180 INFO L470 AbstractCegarLoop]: Abstraction has 412 states and 501 transitions. [2021-11-21 01:48:06,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:48:06,181 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 501 transitions. [2021-11-21 01:48:06,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:48:06,182 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:06,182 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:06,219 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:06,409 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 01:48:06,409 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:06,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:06,409 INFO L85 PathProgramCache]: Analyzing trace with hash 107922983, now seen corresponding path program 1 times [2021-11-21 01:48:06,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:06,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341907569] [2021-11-21 01:48:06,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:06,410 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:06,423 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:06,423 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [703152890] [2021-11-21 01:48:06,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:06,424 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:06,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:06,424 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:06,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:48:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:06,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:48:06,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:06,783 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:06,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:48:07,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:07,003 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:07,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341907569] [2021-11-21 01:48:07,003 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:07,003 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703152890] [2021-11-21 01:48:07,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [703152890] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:48:07,004 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1310573397] [2021-11-21 01:48:07,026 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 01:48:07,026 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:48:07,030 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:48:07,034 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:48:07,034 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:48:07,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,145 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:48:07,168 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:48:07,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 01:48:07,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 01:48:07,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2021-11-21 01:48:07,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:07,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27 [2021-11-21 01:48:07,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:07,350 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 15 treesize of output 1 [2021-11-21 01:48:07,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,388 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:48:07,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:48:07,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,462 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:48:07,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:48:07,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,713 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:48:07,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:48:07,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:07,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,808 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:48:07,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:48:07,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:07,860 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 45 [2021-11-21 01:48:07,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 01:48:07,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:08,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:08,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:08,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:48:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:08,474 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:48:10,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:10,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:10,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:10,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:11,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:48:11,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-21 01:48:11,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 01:48:11,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:48:11,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:11,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:11,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:11,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,548 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:11,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:48:11,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,598 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:11,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:48:11,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:48:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:11,646 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:48:12,031 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:12,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:12,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:12,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:48:12,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:48:12,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:12,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,280 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:48:12,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-21 01:48:12,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,296 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-21 01:48:12,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:12,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,368 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 01:48:12,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 4 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:12,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:12,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,480 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:48:12,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:48:12,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,896 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:48:12,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:48:12,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,951 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:48:12,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:12,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:12,993 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:48:12,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:48:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-21 01:48:13,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 01:48:13,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,112 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:13,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:13,329 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 01:48:13,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 306 treesize of output 272 [2021-11-21 01:48:13,344 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 287 treesize of output 283 [2021-11-21 01:48:13,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 328 treesize of output 324 [2021-11-21 01:48:15,297 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 01:48:16,365 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:48:17,363 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:48:20,520 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1310573397] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:20,520 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:48:20,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 01:48:20,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261363564] [2021-11-21 01:48:20,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:20,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 01:48:20,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:20,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 01:48:20,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:48:20,522 INFO L87 Difference]: Start difference. First operand 412 states and 501 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:48:25,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:25,489 INFO L93 Difference]: Finished difference Result 813 states and 992 transitions. [2021-11-21 01:48:25,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 01:48:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 34 [2021-11-21 01:48:25,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:25,493 INFO L225 Difference]: With dead ends: 813 [2021-11-21 01:48:25,493 INFO L226 Difference]: Without dead ends: 409 [2021-11-21 01:48:25,494 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:48:25,495 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 9 mSDsluCounter, 1303 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 1260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 630 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:25,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1419 Invalid, 1260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 619 Invalid, 0 Unknown, 630 Unchecked, 4.9s Time] [2021-11-21 01:48:25,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-11-21 01:48:25,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 409. [2021-11-21 01:48:25,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 409 states, 357 states have (on average 1.2128851540616246) internal successors, (433), 372 states have internal predecessors, (433), 30 states have call successors, (30), 11 states have call predecessors, (30), 9 states have return successors, (33), 26 states have call predecessors, (33), 30 states have call successors, (33) [2021-11-21 01:48:25,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 496 transitions. [2021-11-21 01:48:25,519 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 496 transitions. Word has length 34 [2021-11-21 01:48:25,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:25,520 INFO L470 AbstractCegarLoop]: Abstraction has 409 states and 496 transitions. [2021-11-21 01:48:25,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:48:25,520 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 496 transitions. [2021-11-21 01:48:25,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 01:48:25,521 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:25,521 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:25,569 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-21 01:48:25,749 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-11-21 01:48:25,749 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:25,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1157443849, now seen corresponding path program 1 times [2021-11-21 01:48:25,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:25,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846769671] [2021-11-21 01:48:25,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:25,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:25,776 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:25,780 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1022912725] [2021-11-21 01:48:25,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:25,781 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:25,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:25,782 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:25,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:48:25,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:25,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:48:25,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:26,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:26,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:48:26,088 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:26,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846769671] [2021-11-21 01:48:26,089 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:26,089 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1022912725] [2021-11-21 01:48:26,089 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1022912725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:26,089 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:48:26,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:48:26,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924025507] [2021-11-21 01:48:26,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:26,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:48:26,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:26,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:48:26,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:48:26,094 INFO L87 Difference]: Start difference. First operand 409 states and 496 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:48:28,342 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:48:30,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:30,026 INFO L93 Difference]: Finished difference Result 762 states and 934 transitions. [2021-11-21 01:48:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:48:30,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 37 [2021-11-21 01:48:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:30,034 INFO L225 Difference]: With dead ends: 762 [2021-11-21 01:48:30,034 INFO L226 Difference]: Without dead ends: 760 [2021-11-21 01:48:30,035 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:48:30,036 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 184 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 798 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:30,036 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [184 Valid, 798 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-11-21 01:48:30,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 760 states. [2021-11-21 01:48:30,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 760 to 748. [2021-11-21 01:48:30,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 748 states, 669 states have (on average 1.2137518684603887) internal successors, (812), 686 states have internal predecessors, (812), 52 states have call successors, (52), 18 states have call predecessors, (52), 14 states have return successors, (63), 43 states have call predecessors, (63), 52 states have call successors, (63) [2021-11-21 01:48:30,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 748 states to 748 states and 927 transitions. [2021-11-21 01:48:30,077 INFO L78 Accepts]: Start accepts. Automaton has 748 states and 927 transitions. Word has length 37 [2021-11-21 01:48:30,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:30,077 INFO L470 AbstractCegarLoop]: Abstraction has 748 states and 927 transitions. [2021-11-21 01:48:30,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:48:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 748 states and 927 transitions. [2021-11-21 01:48:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:48:30,079 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:30,079 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:30,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:30,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-21 01:48:30,301 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:30,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:30,301 INFO L85 PathProgramCache]: Analyzing trace with hash -1785745275, now seen corresponding path program 1 times [2021-11-21 01:48:30,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:30,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654138054] [2021-11-21 01:48:30,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:30,302 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:30,330 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:30,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610176253] [2021-11-21 01:48:30,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:30,332 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:30,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:30,333 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:30,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:48:30,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:30,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:48:30,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:30,700 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:48:30,700 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:48:30,852 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-11-21 01:48:30,852 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:30,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654138054] [2021-11-21 01:48:30,852 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:30,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610176253] [2021-11-21 01:48:30,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1610176253] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:48:30,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1760909767] [2021-11-21 01:48:30,855 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:48:30,856 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:48:30,856 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:48:30,856 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:48:30,857 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:48:30,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:30,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:30,904 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:48:30,925 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:48:30,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2021-11-21 01:48:30,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 70 [2021-11-21 01:48:30,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:30,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17 [2021-11-21 01:48:31,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2021-11-21 01:48:31,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-11-21 01:48:31,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,118 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:48:31,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:48:31,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2021-11-21 01:48:31,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:31,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:31,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,395 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:48:31,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:48:31,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,456 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:48:31,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 45 [2021-11-21 01:48:31,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 39 [2021-11-21 01:48:31,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,533 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:48:31,533 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 38 [2021-11-21 01:48:31,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:31,827 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 19 treesize of output 1 [2021-11-21 01:48:31,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:48:31,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:31,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:48:32,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:33,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,861 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:48:33,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 82 [2021-11-21 01:48:33,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 77 [2021-11-21 01:48:33,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:33,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:48:34,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:34,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:34,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:34,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,392 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:34,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:48:34,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,460 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:34,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:48:34,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:48:34,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:34,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:48:34,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:34,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:34,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:35,029 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:48:35,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:48:35,114 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,116 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:35,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:35,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,177 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:48:35,177 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:35,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,241 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:48:35,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 70 [2021-11-21 01:48:35,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 43 [2021-11-21 01:48:35,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2021-11-21 01:48:35,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,350 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:48:35,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 01:48:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:35,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,806 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:48:35,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:48:35,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,874 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:48:35,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 13 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:35,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,904 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:48:35,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:48:35,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 01:48:35,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:35,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-21 01:48:36,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 234 treesize of output 230 [2021-11-21 01:48:36,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 257 treesize of output 253 [2021-11-21 01:48:36,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:37,682 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 01:48:38,753 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:48:39,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:39,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:39,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:39,998 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:39,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-21 01:48:40,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,017 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:40,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 172 treesize of output 156 [2021-11-21 01:48:40,054 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:48:40,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 147 treesize of output 139 [2021-11-21 01:48:40,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,631 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:40,631 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 197 treesize of output 181 [2021-11-21 01:48:40,669 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:48:40,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 172 treesize of output 164 [2021-11-21 01:48:40,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:40,686 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:40,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 01:48:41,902 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:48:41,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 197 treesize of output 189 [2021-11-21 01:48:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,924 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:41,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 189 treesize of output 173 [2021-11-21 01:48:41,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:41,959 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:48:41,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 164 treesize of output 148 [2021-11-21 01:48:42,181 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 01:48:42,440 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:48:46,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [1760909767] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:48:46,228 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:48:46,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 01:48:46,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109995045] [2021-11-21 01:48:46,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:48:46,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:48:46,229 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:48:46,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:48:46,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:48:46,230 INFO L87 Difference]: Start difference. First operand 748 states and 927 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:48:49,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:48:49,741 INFO L93 Difference]: Finished difference Result 1468 states and 1827 transitions. [2021-11-21 01:48:49,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 01:48:49,741 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 46 [2021-11-21 01:48:49,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:48:49,748 INFO L225 Difference]: With dead ends: 1468 [2021-11-21 01:48:49,749 INFO L226 Difference]: Without dead ends: 750 [2021-11-21 01:48:49,751 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:48:49,752 INFO L933 BasicCegarLoop]: 160 mSDtfsCounter, 14 mSDsluCounter, 1201 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1316 SdHoareTripleChecker+Invalid, 1153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 720 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:48:49,753 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1316 Invalid, 1153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 421 Invalid, 0 Unknown, 720 Unchecked, 3.5s Time] [2021-11-21 01:48:49,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2021-11-21 01:48:49,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 750. [2021-11-21 01:48:49,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 750 states, 671 states have (on average 1.2131147540983607) internal successors, (814), 688 states have internal predecessors, (814), 52 states have call successors, (52), 18 states have call predecessors, (52), 14 states have return successors, (63), 43 states have call predecessors, (63), 52 states have call successors, (63) [2021-11-21 01:48:49,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 750 states to 750 states and 929 transitions. [2021-11-21 01:48:49,794 INFO L78 Accepts]: Start accepts. Automaton has 750 states and 929 transitions. Word has length 46 [2021-11-21 01:48:49,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:48:49,798 INFO L470 AbstractCegarLoop]: Abstraction has 750 states and 929 transitions. [2021-11-21 01:48:49,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:48:49,798 INFO L276 IsEmpty]: Start isEmpty. Operand 750 states and 929 transitions. [2021-11-21 01:48:49,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:48:49,799 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:48:49,799 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:48:49,838 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 01:48:50,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-21 01:48:50,017 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting alt_bzeroErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [alt_mallocErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_mallocErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, alt_freeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2021-11-21 01:48:50,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:48:50,017 INFO L85 PathProgramCache]: Analyzing trace with hash 930438946, now seen corresponding path program 1 times [2021-11-21 01:48:50,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:48:50,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259377732] [2021-11-21 01:48:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:50,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:48:50,030 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:48:50,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1006926719] [2021-11-21 01:48:50,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:48:50,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:48:50,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:48:50,032 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:48:50,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42e8c095-f58c-4657-a3e9-87e39db2fcf9/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 01:48:50,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:48:50,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:48:50,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:48:50,331 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:48:50,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:48:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-21 01:48:50,477 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:48:50,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259377732] [2021-11-21 01:48:50,477 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:48:50,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1006926719] [2021-11-21 01:48:50,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1006926719] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:48:50,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1989293392] [2021-11-21 01:48:50,480 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:48:50,480 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:48:50,481 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:48:50,481 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:48:50,481 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:48:50,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,550 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-21 01:48:50,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 01:48:50,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:50,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,619 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:48:50,619 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 01:48:50,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2021-11-21 01:48:50,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 28 [2021-11-21 01:48:50,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,875 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 01:48:50,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 65 [2021-11-21 01:48:50,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-21 01:48:50,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:50,997 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:48:50,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 43 [2021-11-21 01:48:51,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,166 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 01:48:51,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 27 treesize of output 46 [2021-11-21 01:48:51,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:51,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,316 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 01:48:51,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:48:51,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:48:51,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:51,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 77 treesize of output 69 [2021-11-21 01:48:51,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:51,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 76 [2021-11-21 01:48:51,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 95 treesize of output 89 [2021-11-21 01:48:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-21 01:48:54,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 80 treesize of output 72 [2021-11-21 01:48:54,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:48:54,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:54,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:48:54,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,466 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:54,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 114 treesize of output 104 [2021-11-21 01:48:54,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,498 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:48:54,498 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 103 treesize of output 97 [2021-11-21 01:48:54,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 96 [2021-11-21 01:48:54,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:48:54,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:54,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:54,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:48:55,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:55,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:55,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:48:55,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 01:48:55,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2021-11-21 01:48:55,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,320 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:48:55,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:55,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:55,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:55,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,451 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:48:55,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:48:55,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,536 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:48:55,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:48:55,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 36 [2021-11-21 01:48:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2021-11-21 01:48:55,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:55,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,955 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:48:55,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 26 treesize of output 32 [2021-11-21 01:48:55,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:55,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 10 [2021-11-21 01:48:56,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,022 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:48:56,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 58 [2021-11-21 01:48:56,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,036 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 30 [2021-11-21 01:48:56,044 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2021-11-21 01:48:56,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:48:56,072 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:48:56,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 23 [2021-11-21 01:48:56,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-11-21 01:48:56,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 01:48:56,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:48:56,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:56,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:56,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:56,916 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:48:56,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 137 treesize of output 136 [2021-11-21 01:48:56,944 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:48:56,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 133 treesize of output 132 [2021-11-21 01:48:56,968 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:48:56,969 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 129 treesize of output 128 [2021-11-21 01:48:57,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:48:57,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:57,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:48:57,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:48:57,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 01:48:57,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2021-11-21 01:48:57,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2021-11-21 01:48:59,624 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:48:59,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1526 treesize of output 1147 [2021-11-21 01:48:59,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:01,242 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:49:01,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 1583 treesize of output 1349 [2021-11-21 01:49:02,822 INFO L354 Elim1Store]: treesize reduction 1254, result has 33.9 percent of original size [2021-11-21 01:49:02,823 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 1415 treesize of output 1461 [2021-11-21 01:49:03,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:03,648 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:49:03,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:49:03,741 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:49:04,105 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:04,184 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:49:04,185 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-21 01:53:18,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:18,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:53:45,521 WARN L227 SmtUtils]: Spent 26.68s on a formula simplification. DAG size of input: 167 DAG size of output: 89 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:53:45,522 INFO L354 Elim1Store]: treesize reduction 838, result has 27.9 percent of original size [2021-11-21 01:53:45,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 16 case distinctions, treesize of input 3643 treesize of output 3482 [2021-11-21 01:59:36,790 INFO L244 Elim1Store]: Index analysis took 131 ms [2021-11-21 01:59:36,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:59:37,183 INFO L190 IndexEqualityManager]: detected not equals via solver