./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/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 ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:06:18,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:06:18,649 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:06:18,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:06:18,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:06:18,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:06:18,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:06:18,734 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:06:18,738 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:06:18,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:06:18,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:06:18,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:06:18,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:06:18,758 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:06:18,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:06:18,761 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:06:18,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:06:18,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:06:18,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:06:18,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:06:18,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:06:18,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:06:18,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:06:18,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:06:18,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:06:18,786 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:06:18,787 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:06:18,788 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:06:18,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:06:18,791 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:06:18,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:06:18,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:06:18,794 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:06:18,796 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:06:18,797 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:06:18,798 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:06:18,799 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:06:18,799 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:06:18,799 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:06:18,800 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:06:18,801 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:06:18,802 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:06:18,830 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:06:18,831 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:06:18,831 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:06:18,831 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:06:18,832 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:06:18,832 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:06:18,833 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:06:18,833 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:06:18,833 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:06:18,834 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:06:18,834 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:06:18,834 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:06:18,834 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:06:18,835 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:06:18,835 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:06:18,835 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:06:18,835 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:06:18,836 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:06:18,837 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:06:18,837 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:06:18,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:06:18,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:06:18,838 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:06:18,838 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:06:18,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:06:18,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:06:18,839 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:06:18,839 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:06:18,839 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:06:18,839 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:06:18,840 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:06:18,840 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:06:18,840 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:06:18,840 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:06:18,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:06:18,841 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:06:18,841 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:06:18,842 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:06:18,842 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:06:18,842 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:06:18,842 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:06:18,843 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:06:18,843 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:06:18,843 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff5be3465740cb655882704e7eef418c95d0bbd56a2060e741c7d3e996e58af7 [2021-11-21 01:06:19,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:06:19,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:06:19,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:06:19,179 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:06:19,180 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:06:19,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-21 01:06:19,275 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/data/35182b815/ee5d7ac8e0ae4508a001a02638e77c9c/FLAG6fea08a09 [2021-11-21 01:06:20,041 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:06:20,042 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i [2021-11-21 01:06:20,081 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/data/35182b815/ee5d7ac8e0ae4508a001a02638e77c9c/FLAG6fea08a09 [2021-11-21 01:06:20,151 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/data/35182b815/ee5d7ac8e0ae4508a001a02638e77c9c [2021-11-21 01:06:20,156 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:06:20,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:06:20,161 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:06:20,161 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:06:20,167 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:06:20,168 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:06:20" (1/1) ... [2021-11-21 01:06:20,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b7db95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:20, skipping insertion in model container [2021-11-21 01:06:20,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:06:20" (1/1) ... [2021-11-21 01:06:20,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:06:20,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:06:20,944 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-21 01:06:20,955 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-21 01:06:21,114 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-21 01:06:21,116 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-21 01:06:21,130 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:06:21,140 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:06:21,212 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44118,44131] [2021-11-21 01:06:21,215 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[44660,44673] [2021-11-21 01:06:21,330 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56247,56260] [2021-11-21 01:06:21,331 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_3d1ed29e-5d37-40f9-b8fa-51257cc93500/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test6-1.i[56368,56381] [2021-11-21 01:06:21,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:06:21,427 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:06:21,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21 WrapperNode [2021-11-21 01:06:21,427 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:06:21,428 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:06:21,429 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:06:21,429 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:06:21,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,487 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,577 INFO L137 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1050 [2021-11-21 01:06:21,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:06:21,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:06:21,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:06:21,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:06:21,589 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,690 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:06:21,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:06:21,707 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:06:21,707 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:06:21,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (1/1) ... [2021-11-21 01:06:21,731 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:06:21,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:21,766 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:06:21,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:06:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:06:21,827 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 01:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:06:21,828 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2021-11-21 01:06:21,828 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2021-11-21 01:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:06:21,829 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:06:21,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2021-11-21 01:06:21,830 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2021-11-21 01:06:21,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:06:21,831 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2021-11-21 01:06:21,831 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2021-11-21 01:06:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:06:21,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:06:21,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:06:22,190 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:06:22,192 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:06:23,456 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:06:23,959 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:06:23,960 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 01:06:23,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:06:23 BoogieIcfgContainer [2021-11-21 01:06:23,967 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:06:23,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:06:23,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:06:23,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:06:23,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:06:20" (1/3) ... [2021-11-21 01:06:23,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1d1189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:06:23, skipping insertion in model container [2021-11-21 01:06:23,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:06:21" (2/3) ... [2021-11-21 01:06:23,978 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1d1189 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:06:23, skipping insertion in model container [2021-11-21 01:06:23,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:06:23" (3/3) ... [2021-11-21 01:06:23,983 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test6-1.i [2021-11-21 01:06:23,994 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:06:23,995 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-11-21 01:06:24,074 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:06:24,085 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 01:06:24,085 INFO L340 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2021-11-21 01:06:24,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:06:24,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 01:06:24,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:24,117 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 01:06:24,118 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 01:06:24,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:24,124 INFO L85 PathProgramCache]: Analyzing trace with hash 27392344, now seen corresponding path program 1 times [2021-11-21 01:06:24,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:24,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752341460] [2021-11-21 01:06:24,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:24,136 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:24,290 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:24,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [590892570] [2021-11-21 01:06:24,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:24,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:24,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:24,299 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:24,318 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:06:24,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:24,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-21 01:06:24,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:24,695 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:06:24,697 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 01:06:24,712 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 01:06:24,855 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 01:06:24,959 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 01:06:24,960 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 26 treesize of output 22 [2021-11-21 01:06:37,144 WARN L227 SmtUtils]: Spent 12.11s on a formula simplification. DAG size of input: 24 DAG size of output: 22 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-21 01:06:37,278 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:06:37,279 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 48 treesize of output 46 [2021-11-21 01:06:37,314 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 01:06:37,329 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 01:06:37,329 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:37,330 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:37,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752341460] [2021-11-21 01:06:37,330 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:37,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590892570] [2021-11-21 01:06:37,331 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590892570] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:37,332 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:37,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:06:37,334 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349814956] [2021-11-21 01:06:37,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:37,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:06:37,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:37,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:06:37,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:06:37,374 INFO L87 Difference]: Start difference. First operand has 158 states, 126 states have (on average 1.746031746031746) internal successors, (220), 140 states have internal predecessors, (220), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:06:38,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:38,231 INFO L93 Difference]: Finished difference Result 318 states and 501 transitions. [2021-11-21 01:06:38,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:06:38,238 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 01:06:38,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:38,251 INFO L225 Difference]: With dead ends: 318 [2021-11-21 01:06:38,251 INFO L226 Difference]: Without dead ends: 154 [2021-11-21 01:06:38,256 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:06:38,271 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 2 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 55 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:38,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 434 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 55 Unchecked, 0.8s Time] [2021-11-21 01:06:38,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-21 01:06:38,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 153. [2021-11-21 01:06:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 125 states have (on average 1.256) internal successors, (157), 139 states have internal predecessors, (157), 10 states have call successors, (10), 4 states have call predecessors, (10), 4 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-21 01:06:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 177 transitions. [2021-11-21 01:06:38,336 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 177 transitions. Word has length 4 [2021-11-21 01:06:38,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:38,337 INFO L470 AbstractCegarLoop]: Abstraction has 153 states and 177 transitions. [2021-11-21 01:06:38,338 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 01:06:38,338 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 177 transitions. [2021-11-21 01:06:38,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:06:38,339 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:38,340 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 01:06:38,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:38,562 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:38,562 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 01:06:38,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:38,563 INFO L85 PathProgramCache]: Analyzing trace with hash -646465482, now seen corresponding path program 1 times [2021-11-21 01:06:38,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:38,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204148607] [2021-11-21 01:06:38,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:38,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:38,595 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:38,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [848839095] [2021-11-21 01:06:38,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:38,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:38,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:38,597 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:38,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:06:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:38,839 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:06:38,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:38,933 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 01:06:38,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:38,933 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:38,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204148607] [2021-11-21 01:06:38,934 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:38,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848839095] [2021-11-21 01:06:38,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848839095] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:38,935 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:38,935 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:06:38,936 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77182086] [2021-11-21 01:06:38,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:38,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:06:38,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:38,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:06:38,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:06:38,940 INFO L87 Difference]: Start difference. First operand 153 states and 177 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:06:41,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:41,745 INFO L93 Difference]: Finished difference Result 261 states and 302 transitions. [2021-11-21 01:06:41,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:06:41,749 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 01:06:41,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:41,755 INFO L225 Difference]: With dead ends: 261 [2021-11-21 01:06:41,755 INFO L226 Difference]: Without dead ends: 259 [2021-11-21 01:06:41,756 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 01:06:41,758 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 106 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:41,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 443 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 01:06:41,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-21 01:06:41,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 249. [2021-11-21 01:06:41,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 216 states have (on average 1.25) internal successors, (270), 231 states have internal predecessors, (270), 14 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-21 01:06:41,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 298 transitions. [2021-11-21 01:06:41,793 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 298 transitions. Word has length 18 [2021-11-21 01:06:41,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:41,794 INFO L470 AbstractCegarLoop]: Abstraction has 249 states and 298 transitions. [2021-11-21 01:06:41,794 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 01:06:41,794 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 298 transitions. [2021-11-21 01:06:41,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:06:41,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:41,796 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 01:06:41,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:42,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-21 01:06:42,022 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 01:06:42,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:42,023 INFO L85 PathProgramCache]: Analyzing trace with hash 1434406572, now seen corresponding path program 1 times [2021-11-21 01:06:42,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:42,023 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051412773] [2021-11-21 01:06:42,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:42,024 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:42,051 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:42,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361014521] [2021-11-21 01:06:42,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:42,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:42,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:42,053 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:42,078 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:06:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:42,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:06:42,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:42,375 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 01:06:42,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:42,376 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:42,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051412773] [2021-11-21 01:06:42,377 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:42,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361014521] [2021-11-21 01:06:42,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361014521] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:42,378 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:42,394 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:06:42,394 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238554466] [2021-11-21 01:06:42,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:42,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:06:42,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:42,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:06:42,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:06:42,396 INFO L87 Difference]: Start difference. First operand 249 states and 298 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:06:43,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:43,964 INFO L93 Difference]: Finished difference Result 441 states and 532 transitions. [2021-11-21 01:06:43,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:06:43,972 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 01:06:43,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:43,978 INFO L225 Difference]: With dead ends: 441 [2021-11-21 01:06:43,978 INFO L226 Difference]: Without dead ends: 439 [2021-11-21 01:06:43,979 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 01:06:43,981 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 147 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:43,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 451 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-21 01:06:43,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2021-11-21 01:06:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 428. [2021-11-21 01:06:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.25) internal successors, (480), 400 states have internal predecessors, (480), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-21 01:06:44,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 529 transitions. [2021-11-21 01:06:44,034 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 529 transitions. Word has length 19 [2021-11-21 01:06:44,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:44,034 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 529 transitions. [2021-11-21 01:06:44,035 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 01:06:44,035 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 529 transitions. [2021-11-21 01:06:44,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-21 01:06:44,037 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:44,037 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 01:06:44,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:44,246 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:44,246 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 01:06:44,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:44,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1558573003, now seen corresponding path program 1 times [2021-11-21 01:06:44,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:44,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21729029] [2021-11-21 01:06:44,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:44,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:44,368 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 01:06:44,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:44,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21729029] [2021-11-21 01:06:44,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21729029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:44,369 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:44,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:06:44,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198547545] [2021-11-21 01:06:44,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:44,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:06:44,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:44,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:06:44,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:06:44,376 INFO L87 Difference]: Start difference. First operand 428 states and 529 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:06:45,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:45,834 INFO L93 Difference]: Finished difference Result 682 states and 842 transitions. [2021-11-21 01:06:45,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:06:45,839 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 01:06:45,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:45,844 INFO L225 Difference]: With dead ends: 682 [2021-11-21 01:06:45,845 INFO L226 Difference]: Without dead ends: 562 [2021-11-21 01:06:45,846 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 01:06:45,847 INFO L933 BasicCegarLoop]: 148 mSDtfsCounter, 56 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:45,848 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 412 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:06:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2021-11-21 01:06:45,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 428. [2021-11-21 01:06:45,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 428 states, 384 states have (on average 1.2473958333333333) internal successors, (479), 400 states have internal predecessors, (479), 23 states have call successors, (23), 10 states have call predecessors, (23), 7 states have return successors, (26), 18 states have call predecessors, (26), 23 states have call successors, (26) [2021-11-21 01:06:45,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 428 states to 428 states and 528 transitions. [2021-11-21 01:06:45,935 INFO L78 Accepts]: Start accepts. Automaton has 428 states and 528 transitions. Word has length 24 [2021-11-21 01:06:45,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:45,936 INFO L470 AbstractCegarLoop]: Abstraction has 428 states and 528 transitions. [2021-11-21 01:06:45,936 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 01:06:45,936 INFO L276 IsEmpty]: Start isEmpty. Operand 428 states and 528 transitions. [2021-11-21 01:06:45,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:06:45,938 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:45,938 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 01:06:45,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-21 01:06:45,938 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 01:06:45,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:45,939 INFO L85 PathProgramCache]: Analyzing trace with hash -2115465486, now seen corresponding path program 1 times [2021-11-21 01:06:45,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:45,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386211331] [2021-11-21 01:06:45,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:45,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:46,002 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:46,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [617724075] [2021-11-21 01:06:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:46,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:46,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:46,018 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:46,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:06:46,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:46,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:06:46,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:46,418 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 01:06:46,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:46,418 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386211331] [2021-11-21 01:06:46,419 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:46,419 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617724075] [2021-11-21 01:06:46,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617724075] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:46,420 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:46,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:06:46,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913996172] [2021-11-21 01:06:46,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:46,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:06:46,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:46,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:06:46,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:06:46,422 INFO L87 Difference]: Start difference. First operand 428 states and 528 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:06:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:47,878 INFO L93 Difference]: Finished difference Result 454 states and 548 transitions. [2021-11-21 01:06:47,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:06:47,882 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 01:06:47,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:47,887 INFO L225 Difference]: With dead ends: 454 [2021-11-21 01:06:47,887 INFO L226 Difference]: Without dead ends: 453 [2021-11-21 01:06:47,888 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 01:06:47,889 INFO L933 BasicCegarLoop]: 155 mSDtfsCounter, 112 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:47,890 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 304 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-11-21 01:06:47,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2021-11-21 01:06:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 443. [2021-11-21 01:06:47,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 443 states, 394 states have (on average 1.2436548223350254) internal successors, (490), 411 states have internal predecessors, (490), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-21 01:06:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 545 transitions. [2021-11-21 01:06:47,964 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 545 transitions. Word has length 27 [2021-11-21 01:06:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:47,965 INFO L470 AbstractCegarLoop]: Abstraction has 443 states and 545 transitions. [2021-11-21 01:06:47,965 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 01:06:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 545 transitions. [2021-11-21 01:06:47,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:06:47,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:47,968 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 01:06:47,999 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:48,169 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:48,169 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 01:06:48,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:48,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1154920565, now seen corresponding path program 1 times [2021-11-21 01:06:48,170 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:48,170 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1168275744] [2021-11-21 01:06:48,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:48,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:48,188 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:48,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [375319400] [2021-11-21 01:06:48,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:48,189 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:48,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:48,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:48,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:06:48,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:48,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-21 01:06:48,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:48,497 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 01:06:48,497 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:48,497 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:48,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1168275744] [2021-11-21 01:06:48,498 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:48,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375319400] [2021-11-21 01:06:48,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375319400] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:48,499 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:48,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:06:48,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332876514] [2021-11-21 01:06:48,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:48,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:06:48,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:48,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:06:48,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:06:48,501 INFO L87 Difference]: Start difference. First operand 443 states and 545 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 2 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-21 01:06:49,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:49,306 INFO L93 Difference]: Finished difference Result 443 states and 545 transitions. [2021-11-21 01:06:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:06:49,311 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 01:06:49,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:49,316 INFO L225 Difference]: With dead ends: 443 [2021-11-21 01:06:49,316 INFO L226 Difference]: Without dead ends: 442 [2021-11-21 01:06:49,317 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 01:06:49,318 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 143 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:49,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 147 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-21 01:06:49,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-11-21 01:06:49,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2021-11-21 01:06:49,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 394 states have (on average 1.2385786802030456) internal successors, (488), 410 states have internal predecessors, (488), 26 states have call successors, (26), 12 states have call predecessors, (26), 9 states have return successors, (29), 21 states have call predecessors, (29), 26 states have call successors, (29) [2021-11-21 01:06:49,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 543 transitions. [2021-11-21 01:06:49,350 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 543 transitions. Word has length 28 [2021-11-21 01:06:49,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:49,350 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 543 transitions. [2021-11-21 01:06:49,351 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 01:06:49,351 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 543 transitions. [2021-11-21 01:06:49,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:06:49,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:49,352 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 01:06:49,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:49,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:49,570 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 01:06:49,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:49,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1356353724, now seen corresponding path program 1 times [2021-11-21 01:06:49,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:49,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224838986] [2021-11-21 01:06:49,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:49,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:49,588 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:49,588 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1953209647] [2021-11-21 01:06:49,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:49,589 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:49,589 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:49,590 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:49,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:06:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:49,797 INFO L263 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:06:49,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:49,950 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 01:06:49,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:06:49,951 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:49,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224838986] [2021-11-21 01:06:49,953 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:49,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953209647] [2021-11-21 01:06:49,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953209647] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:06:49,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:06:49,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:06:49,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747917802] [2021-11-21 01:06:49,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:06:49,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:06:49,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:06:49,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:06:49,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:06:49,957 INFO L87 Difference]: Start difference. First operand 442 states and 543 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:06:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:06:51,162 INFO L93 Difference]: Finished difference Result 814 states and 992 transitions. [2021-11-21 01:06:51,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:06:51,167 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 01:06:51,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:06:51,171 INFO L225 Difference]: With dead ends: 814 [2021-11-21 01:06:51,171 INFO L226 Difference]: Without dead ends: 377 [2021-11-21 01:06:51,174 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 01:06:51,175 INFO L933 BasicCegarLoop]: 161 mSDtfsCounter, 49 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:06:51,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 284 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-21 01:06:51,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-11-21 01:06:51,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 368. [2021-11-21 01:06:51,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 326 states have (on average 1.2147239263803682) internal successors, (396), 341 states have internal predecessors, (396), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-21 01:06:51,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 441 transitions. [2021-11-21 01:06:51,202 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 441 transitions. Word has length 28 [2021-11-21 01:06:51,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:06:51,203 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 441 transitions. [2021-11-21 01:06:51,203 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 01:06:51,203 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 441 transitions. [2021-11-21 01:06:51,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-21 01:06:51,205 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:06:51,205 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 01:06:51,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-21 01:06:51,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-11-21 01:06:51,426 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 01:06:51,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:06:51,427 INFO L85 PathProgramCache]: Analyzing trace with hash 227049609, now seen corresponding path program 1 times [2021-11-21 01:06:51,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:06:51,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318682494] [2021-11-21 01:06:51,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:51,428 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:06:51,446 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:06:51,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1756049969] [2021-11-21 01:06:51,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:06:51,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:06:51,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:06:51,448 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:06:51,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-21 01:06:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:06:51,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-21 01:06:51,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:06:51,841 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 01:06:51,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:06:52,122 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 01:06:52,125 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:06:52,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318682494] [2021-11-21 01:06:52,126 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:06:52,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756049969] [2021-11-21 01:06:52,126 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1756049969] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:06:52,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [606116695] [2021-11-21 01:06:52,156 INFO L159 IcfgInterpreter]: Started Sifa with 33 locations of interest [2021-11-21 01:06:52,157 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:06:52,165 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:06:52,172 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:06:52,172 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:06:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,299 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:06:52,299 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 01:06:52,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,371 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 01:06:52,381 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 01:06:52,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,405 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 01:06:52,435 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 01:06:52,482 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 01:06:52,718 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 01:06:52,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,796 INFO L354 Elim1Store]: treesize reduction 42, result has 42.5 percent of original size [2021-11-21 01:06:52,796 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 01:06:52,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2021-11-21 01:06:52,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:52,957 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:06:52,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 25 [2021-11-21 01:06:53,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:53,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:53,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:53,173 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:06:53,173 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 01:06:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:53,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:53,276 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:06:53,276 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 01:06:53,388 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 01:06:53,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:06:53,973 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 01:06:54,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,097 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,098 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 01:06:54,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:54,114 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 01:06:56,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,869 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:06:56,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,903 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,911 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 01:06:56,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,936 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 01:06:56,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,963 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 01:06:56,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:56,987 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 01:06:57,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,186 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,187 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 01:06:57,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,356 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 01:06:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,483 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 01:06:57,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,607 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:06:57,608 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 01:06:57,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,709 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:06:57,709 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 01:06:57,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,744 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 01:06:57,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:57,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 88 [2021-11-21 01:06:58,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:06:58,355 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 01:06:58,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:06:58,408 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 01:06:58,432 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 01:06:58,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,578 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 01:06:58,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,651 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:06:58,652 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 01:06:58,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,680 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 01:06:58,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,817 INFO L354 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2021-11-21 01:06:58,817 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 01:06:58,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,855 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 01:06:58,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:58,941 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:06:58,942 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 01:06:59,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,454 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:06:59,454 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 01:06:59,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,536 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:06:59,536 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 01:06:59,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,562 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 01:06:59,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,605 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:06:59,606 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 01:06:59,623 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 01:06:59,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,647 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 01:06:59,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:06:59,763 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 01:07:00,150 INFO L354 Elim1Store]: treesize reduction 50, result has 19.4 percent of original size [2021-11-21 01:07:00,151 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 01:07:00,173 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 01:07:00,194 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 298 treesize of output 294 [2021-11-21 01:07:02,845 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 89 for LOIs [2021-11-21 01:07:04,357 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:07:05,671 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:07:09,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [606116695] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:09,990 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:07:09,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [6, 7] total 32 [2021-11-21 01:07:09,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91549398] [2021-11-21 01:07:09,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:09,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-21 01:07:09,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:09,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-21 01:07:09,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:07:09,994 INFO L87 Difference]: Start difference. First operand 368 states and 441 transitions. Second operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 16 states have internal predecessors, (28), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:07:14,258 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:15,826 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:17,909 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:18,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:18,492 INFO L93 Difference]: Finished difference Result 725 states and 872 transitions. [2021-11-21 01:07:18,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-21 01:07:18,493 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 01:07:18,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:18,497 INFO L225 Difference]: With dead ends: 725 [2021-11-21 01:07:18,497 INFO L226 Difference]: Without dead ends: 365 [2021-11-21 01:07:18,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:07:18,500 INFO L933 BasicCegarLoop]: 141 mSDtfsCounter, 9 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1031 SdHoareTripleChecker+Invalid, 904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 446 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:18,500 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 1031 Invalid, 904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 447 Invalid, 1 Unknown, 446 Unchecked, 8.4s Time] [2021-11-21 01:07:18,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2021-11-21 01:07:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-11-21 01:07:18,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 323 states have (on average 1.2105263157894737) internal successors, (391), 337 states have internal predecessors, (391), 21 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (24), 18 states have call predecessors, (24), 21 states have call successors, (24) [2021-11-21 01:07:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 436 transitions. [2021-11-21 01:07:18,527 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 436 transitions. Word has length 34 [2021-11-21 01:07:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:18,528 INFO L470 AbstractCegarLoop]: Abstraction has 365 states and 436 transitions. [2021-11-21 01:07:18,528 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 01:07:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 436 transitions. [2021-11-21 01:07:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-21 01:07:18,530 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:18,530 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 01:07:18,578 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:18,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:18,758 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 01:07:18,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:18,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1472683514, now seen corresponding path program 1 times [2021-11-21 01:07:18,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:18,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303787595] [2021-11-21 01:07:18,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:18,759 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:18,783 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:18,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652319617] [2021-11-21 01:07:18,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:18,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:18,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:18,788 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:18,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-21 01:07:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:18,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:07:18,981 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:19,102 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 01:07:19,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:07:19,103 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:19,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303787595] [2021-11-21 01:07:19,103 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:19,104 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652319617] [2021-11-21 01:07:19,104 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652319617] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:19,104 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:07:19,104 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 01:07:19,105 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122457362] [2021-11-21 01:07:19,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:19,105 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:07:19,105 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:19,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:07:19,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:07:19,107 INFO L87 Difference]: Start difference. First operand 365 states and 436 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:07:22,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:22,592 INFO L93 Difference]: Finished difference Result 664 states and 802 transitions. [2021-11-21 01:07:22,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:07:22,593 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 01:07:22,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:22,599 INFO L225 Difference]: With dead ends: 664 [2021-11-21 01:07:22,600 INFO L226 Difference]: Without dead ends: 662 [2021-11-21 01:07:22,600 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 01:07:22,601 INFO L933 BasicCegarLoop]: 268 mSDtfsCounter, 151 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 678 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:22,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 678 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-11-21 01:07:22,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2021-11-21 01:07:22,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 650. [2021-11-21 01:07:22,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 593 states have (on average 1.2107925801011805) internal successors, (718), 607 states have internal predecessors, (718), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-21 01:07:22,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 795 transitions. [2021-11-21 01:07:22,646 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 795 transitions. Word has length 37 [2021-11-21 01:07:22,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:22,647 INFO L470 AbstractCegarLoop]: Abstraction has 650 states and 795 transitions. [2021-11-21 01:07:22,647 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 01:07:22,647 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 795 transitions. [2021-11-21 01:07:22,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-21 01:07:22,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:22,649 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 01:07:22,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:22,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-11-21 01:07:22,870 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 01:07:22,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:22,871 INFO L85 PathProgramCache]: Analyzing trace with hash -1507787838, now seen corresponding path program 1 times [2021-11-21 01:07:22,871 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:22,872 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [780517593] [2021-11-21 01:07:22,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:22,872 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:22,911 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:22,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [331789675] [2021-11-21 01:07:22,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:22,912 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:22,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:22,935 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:22,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-21 01:07:23,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:23,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:07:23,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:23,332 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 01:07:23,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:07:23,522 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 01:07:23,522 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:23,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [780517593] [2021-11-21 01:07:23,522 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:23,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [331789675] [2021-11-21 01:07:23,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [331789675] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:07:23,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2038630501] [2021-11-21 01:07:23,526 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:07:23,527 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:07:23,527 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:07:23,527 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:07:23,527 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:07:23,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,601 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:07:23,629 INFO L354 Elim1Store]: treesize reduction 31, result has 35.4 percent of original size [2021-11-21 01:07:23,630 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 01:07:23,643 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 01:07:23,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,690 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 01:07:23,698 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 01:07:23,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,745 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 01:07:23,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,877 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:07:23,877 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 01:07:23,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:07:23,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:23,936 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 01:07:23,967 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 01:07:24,191 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 01:07:24,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,271 INFO L354 Elim1Store]: treesize reduction 70, result has 28.6 percent of original size [2021-11-21 01:07:24,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 61 [2021-11-21 01:07:24,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:07:24,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,398 INFO L354 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2021-11-21 01:07:24,398 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 01:07:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,464 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 01:07:24,483 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 01:07:24,854 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 01:07:24,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:07:24,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,968 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 01:07:24,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:24,987 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 01:07:27,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,756 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 01:07:27,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,781 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 01:07:27,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,902 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 01:07:27,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 86 [2021-11-21 01:07:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,948 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 01:07:27,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:27,967 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 01:07:28,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,203 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 01:07:28,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,232 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 01:07:28,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,449 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:07:28,450 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 01:07:28,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,521 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:07:28,522 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 01:07:28,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,555 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 01:07:28,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:28,587 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 01:07:29,143 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 25 treesize of output 1 [2021-11-21 01:07:29,156 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2021-11-21 01:07:29,162 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 01:07:29,308 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 01:07:29,326 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 01:07:29,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,414 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 01:07:29,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,466 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 01:07:29,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,520 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:07:29,520 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 01:07:29,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,589 INFO L354 Elim1Store]: treesize reduction 8, result has 68.0 percent of original size [2021-11-21 01:07:29,589 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 01:07:29,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,611 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 01:07:29,637 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 01:07:29,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:29,702 INFO L354 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2021-11-21 01:07:29,702 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 01:07:30,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,109 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 01:07:30,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,139 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 01:07:30,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,214 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:07:30,215 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 01:07:30,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,303 INFO L354 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2021-11-21 01:07:30,303 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 01:07:30,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,334 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:07:30,334 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 01:07:30,346 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 01:07:30,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:30,361 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 01:07:30,546 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 01:07:30,571 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 245 treesize of output 241 [2021-11-21 01:07:30,913 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 01:07:32,806 INFO L197 IcfgInterpreter]: Interpreting procedure alt_bzero with input of size 78 for LOIs [2021-11-21 01:07:34,060 INFO L197 IcfgInterpreter]: Interpreting procedure alt_malloc with input of size 110 for LOIs [2021-11-21 01:07:35,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,755 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:35,755 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 01:07:35,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:35,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:35,773 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 01:07:35,812 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:07:35,812 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 01:07:36,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,618 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:36,619 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 01:07:36,668 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:07:36,668 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 01:07:36,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:36,697 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:36,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 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 01:07:37,915 INFO L354 Elim1Store]: treesize reduction 84, result has 11.6 percent of original size [2021-11-21 01:07:37,915 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 01:07:37,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,963 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:37,964 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 01:07:37,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:37,983 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:07:37,984 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 01:07:38,191 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 102 for LOIs [2021-11-21 01:07:38,447 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-21 01:07:43,164 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSifa [2038630501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:07:43,165 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-21 01:07:43,165 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [4, 5] total 31 [2021-11-21 01:07:43,165 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395986230] [2021-11-21 01:07:43,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:07:43,166 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-21 01:07:43,166 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:07:43,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-21 01:07:43,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:07:43,168 INFO L87 Difference]: Start difference. First operand 650 states and 795 transitions. Second operand has 23 states, 19 states have (on average 1.6842105263157894) internal successors, (32), 18 states have internal predecessors, (32), 4 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:07:49,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:50,713 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-21 01:07:52,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:07:52,322 INFO L93 Difference]: Finished difference Result 1272 states and 1563 transitions. [2021-11-21 01:07:52,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-21 01:07:52,323 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 01:07:52,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:07:52,329 INFO L225 Difference]: With dead ends: 1272 [2021-11-21 01:07:52,330 INFO L226 Difference]: Without dead ends: 652 [2021-11-21 01:07:52,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=228, Invalid=702, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:07:52,333 INFO L933 BasicCegarLoop]: 135 mSDtfsCounter, 8 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1623 SdHoareTripleChecker+Invalid, 1222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 518 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:07:52,333 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 1623 Invalid, 1222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 696 Invalid, 1 Unknown, 518 Unchecked, 9.1s Time] [2021-11-21 01:07:52,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2021-11-21 01:07:52,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 652. [2021-11-21 01:07:52,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 652 states, 595 states have (on average 1.2100840336134453) internal successors, (720), 609 states have internal predecessors, (720), 33 states have call successors, (33), 15 states have call predecessors, (33), 11 states have return successors, (44), 27 states have call predecessors, (44), 33 states have call successors, (44) [2021-11-21 01:07:52,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 652 states to 652 states and 797 transitions. [2021-11-21 01:07:52,376 INFO L78 Accepts]: Start accepts. Automaton has 652 states and 797 transitions. Word has length 46 [2021-11-21 01:07:52,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:07:52,376 INFO L470 AbstractCegarLoop]: Abstraction has 652 states and 797 transitions. [2021-11-21 01:07:52,377 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 01:07:52,377 INFO L276 IsEmpty]: Start isEmpty. Operand 652 states and 797 transitions. [2021-11-21 01:07:52,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-11-21 01:07:52,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:07:52,378 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 01:07:52,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-21 01:07:52,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-21 01:07:52,602 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 01:07:52,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:07:52,603 INFO L85 PathProgramCache]: Analyzing trace with hash -2074882063, now seen corresponding path program 1 times [2021-11-21 01:07:52,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:07:52,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888480890] [2021-11-21 01:07:52,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:52,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:07:52,648 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:07:52,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1658564992] [2021-11-21 01:07:52,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:07:52,649 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:07:52,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:07:52,652 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:07:52,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d1ed29e-5d37-40f9-b8fa-51257cc93500/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-21 01:07:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:07:52,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:07:52,886 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:07:53,028 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 01:07:53,028 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:07:53,205 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 01:07:53,206 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:07:53,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888480890] [2021-11-21 01:07:53,206 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:07:53,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1658564992] [2021-11-21 01:07:53,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1658564992] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:07:53,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1597879748] [2021-11-21 01:07:53,210 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:07:53,211 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:07:53,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:07:53,211 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:07:53,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:07:53,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,285 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:07:53,285 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 01:07:53,322 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 01:07:53,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,371 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 01:07:53,377 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 01:07:53,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,405 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 01:07:53,449 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 01:07:53,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,682 INFO L354 Elim1Store]: treesize reduction 50, result has 32.4 percent of original size [2021-11-21 01:07:53,683 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 01:07:53,748 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 01:07:53,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:07:53,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,866 INFO L354 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2021-11-21 01:07:53,867 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 01:07:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:53,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 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 01:07:53,962 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 01:07:54,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,335 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 01:07:54,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:54,359 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 01:07:54,444 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 01:07:54,519 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 01:07:57,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,024 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 01:07:57,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,094 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 01:07:57,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,211 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 01:07:57,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,255 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 01:07:57,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,275 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 01:07:57,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,291 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 01:07:57,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,472 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 01:07:57,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,550 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:07:57,550 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 01:07:57,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,591 INFO L354 Elim1Store]: treesize reduction 34, result has 12.8 percent of original size [2021-11-21 01:07:57,591 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 01:07:57,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,613 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 01:07:57,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,634 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 01:07:57,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:57,779 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 01:07:58,167 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 01:07:58,176 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 01:07:58,180 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 01:07:58,303 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 01:07:58,314 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 01:07:58,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,394 INFO L354 Elim1Store]: treesize reduction 45, result has 8.2 percent of original size [2021-11-21 01:07:58,394 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 01:07:58,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,421 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 01:07:58,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,441 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 01:07:58,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,550 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:07:58,551 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 01:07:58,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,668 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:07:58,669 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 01:07:58,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:58,693 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 01:07:58,706 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 01:07:59,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,201 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 01:07:59,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,310 INFO L354 Elim1Store]: treesize reduction 24, result has 41.5 percent of original size [2021-11-21 01:07:59,310 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 01:07:59,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,355 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 01:07:59,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,393 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:07:59,393 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 01:07:59,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,410 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 01:07:59,419 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 01:07:59,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:07:59,451 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-21 01:07:59,451 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 01:07:59,537 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 01:07:59,589 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 01:07:59,626 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 01:08:00,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 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 01:08:00,460 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 01:08:00,476 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 01:08:00,561 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:08:00,561 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 01:08:00,586 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:08:00,587 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 01:08:00,610 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:08:00,610 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 01:08:00,749 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 01:08:00,759 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 01:08:00,775 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 01:08:00,873 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 01:08:00,899 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 01:08:01,462 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 01:08:01,481 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 01:08:03,824 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:08:03,825 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 01:08:03,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:05,910 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:08:05,911 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 01:08:07,788 INFO L354 Elim1Store]: treesize reduction 1190, result has 35.1 percent of original size [2021-11-21 01:08:07,789 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 1383 treesize of output 1461 [2021-11-21 01:08:08,669 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:08,763 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:08,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:09,015 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 01:08:09,016 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 36 treesize of output 20 [2021-11-21 01:08:09,172 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:09,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:09,529 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:08:09,530 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 53 treesize of output 63 [2021-11-21 01:08:09,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:09,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 20 [2021-11-21 01:08:10,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:10,650 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-21 01:08:10,651 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 32 treesize of output 26 [2021-11-21 01:08:11,196 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:11,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:11,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 13 [2021-11-21 01:08:11,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:15,892 INFO L354 Elim1Store]: treesize reduction 759, result has 27.4 percent of original size [2021-11-21 01:08:15,892 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 7 new quantified variables, introduced 11 case distinctions, treesize of input 2629 treesize of output 2155 [2021-11-21 01:08:15,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:15,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:17,720 INFO L354 Elim1Store]: treesize reduction 206, result has 65.7 percent of original size [2021-11-21 01:08:17,721 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 3 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 2147 treesize of output 2401 [2021-11-21 01:08:17,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:18,942 INFO L354 Elim1Store]: treesize reduction 134, result has 69.6 percent of original size [2021-11-21 01:08:18,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 2401 treesize of output 2615 [2021-11-21 01:08:57,509 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:08:57,781 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:08:57,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:57,795 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:57,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:57,805 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 78 treesize of output 26 [2021-11-21 01:08:59,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:59,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:08:59,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:00,299 INFO L354 Elim1Store]: treesize reduction 54, result has 57.5 percent of original size [2021-11-21 01:09:00,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 71 treesize of output 85 [2021-11-21 01:09:01,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:01,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-21 01:09:01,295 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:01,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,668 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:01,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:01,762 INFO L354 Elim1Store]: treesize reduction 74, result has 1.3 percent of original size [2021-11-21 01:09:01,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 1 [2021-11-21 01:09:03,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:03,002 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:03,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:03,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:03,010 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 56 treesize of output 10 [2021-11-21 01:09:03,371 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:05,140 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:05,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:05,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:05,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:05,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 13 [2021-11-21 01:09:06,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:06,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:06,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:06,198 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 56 treesize of output 10 [2021-11-21 01:09:06,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:06,942 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:06,974 INFO L244 Elim1Store]: Index analysis took 126 ms [2021-11-21 01:09:07,623 INFO L354 Elim1Store]: treesize reduction 101, result has 33.1 percent of original size [2021-11-21 01:09:07,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 87 treesize of output 78 [2021-11-21 01:09:21,871 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:22,449 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:22,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:22,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:22,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:22,559 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-21 01:09:22,562 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 78 treesize of output 26 [2021-11-21 01:09:24,760 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:26,289 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:26,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,306 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:26,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:26,340 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 78 treesize of output 26 [2021-11-21 01:09:26,819 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:27,461 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:09:27,843 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:09:27,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:27,889 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 62 treesize of output 10 [2021-11-21 01:09:39,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:09:39,815 INFO L244 Elim1Store]: Index analysis took 110 ms [2021-11-21 01:09:39,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 13 [2021-11-21 01:09:50,555 WARN L234 Elim1Store]: Array PQE input equivalent to false