./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/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 d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 23:35:41,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 23:35:41,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 23:35:41,839 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 23:35:41,840 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 23:35:41,841 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 23:35:41,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 23:35:41,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 23:35:41,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 23:35:41,849 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 23:35:41,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 23:35:41,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 23:35:41,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 23:35:41,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 23:35:41,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 23:35:41,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 23:35:41,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 23:35:41,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 23:35:41,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 23:35:41,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 23:35:41,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 23:35:41,869 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 23:35:41,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 23:35:41,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 23:35:41,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 23:35:41,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 23:35:41,876 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 23:35:41,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 23:35:41,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 23:35:41,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 23:35:41,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 23:35:41,880 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 23:35:41,881 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 23:35:41,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 23:35:41,884 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 23:35:41,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 23:35:41,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 23:35:41,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 23:35:41,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 23:35:41,888 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 23:35:41,889 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 23:35:41,889 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-20 23:35:41,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 23:35:41,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 23:35:41,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 23:35:41,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 23:35:41,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 23:35:41,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 23:35:41,922 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-20 23:35:41,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-20 23:35:41,922 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-20 23:35:41,922 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-20 23:35:41,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-20 23:35:41,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-20 23:35:41,924 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-20 23:35:41,924 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-20 23:35:41,925 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-20 23:35:41,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-20 23:35:41,925 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-20 23:35:41,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-20 23:35:41,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 23:35:41,927 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 23:35:41,927 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 23:35:41,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 23:35:41,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 23:35:41,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 23:35:41,928 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 23:35:41,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 23:35:41,930 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 23:35:41,931 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-20 23:35:41,931 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 23:35:41,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 23:35:41,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 23:35:41,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 23:35:41,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 23:35:41,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 23:35:41,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:41,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 23:35:41,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 23:35:41,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 23:35:41,934 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-20 23:35:41,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 23:35:41,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 23:35:41,935 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 23:35:41,935 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-20 23:35:41,935 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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d993ff45e37665d9abd93530677e1201b0648bf8ee13fa84b0c68926f580d988 [2021-11-20 23:35:42,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 23:35:42,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 23:35:42,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 23:35:42,252 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 23:35:42,252 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 23:35:42,254 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2021-11-20 23:35:42,345 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/data/888fcb2c0/e9ac2c08985340e7bb3e69b509848f00/FLAGe0a665401 [2021-11-20 23:35:43,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 23:35:43,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i [2021-11-20 23:35:43,135 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/data/888fcb2c0/e9ac2c08985340e7bb3e69b509848f00/FLAGe0a665401 [2021-11-20 23:35:43,243 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/data/888fcb2c0/e9ac2c08985340e7bb3e69b509848f00 [2021-11-20 23:35:43,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 23:35:43,250 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 23:35:43,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:43,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 23:35:43,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 23:35:43,258 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:43" (1/1) ... [2021-11-20 23:35:43,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c021bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:43, skipping insertion in model container [2021-11-20 23:35:43,261 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:35:43" (1/1) ... [2021-11-20 23:35:43,268 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 23:35:43,358 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 23:35:43,840 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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[33021,33034] [2021-11-20 23:35:44,044 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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[84583,84596] [2021-11-20 23:35:44,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:44,063 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 23:35:44,094 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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[33021,33034] [2021-11-20 23:35:44,230 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_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test9-2.i[84583,84596] [2021-11-20 23:35:44,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 23:35:44,296 INFO L208 MainTranslator]: Completed translation [2021-11-20 23:35:44,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44 WrapperNode [2021-11-20 23:35:44,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 23:35:44,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:44,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 23:35:44,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 23:35:44,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,358 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,482 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2021-11-20 23:35:44,482 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 23:35:44,483 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 23:35:44,483 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 23:35:44,483 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 23:35:44,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,674 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,704 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,712 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 23:35:44,724 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 23:35:44,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 23:35:44,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 23:35:44,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (1/1) ... [2021-11-20 23:35:44,734 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 23:35:44,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:44,793 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 23:35:44,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 23:35:44,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-20 23:35:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-20 23:35:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-20 23:35:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-20 23:35:44,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-20 23:35:44,842 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-20 23:35:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-20 23:35:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 23:35:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-20 23:35:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-20 23:35:44,843 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-20 23:35:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-20 23:35:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-20 23:35:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 23:35:44,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 23:35:44,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 23:35:45,143 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 23:35:45,145 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 23:35:47,174 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 23:35:47,718 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 23:35:47,718 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-20 23:35:47,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:47 BoogieIcfgContainer [2021-11-20 23:35:47,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 23:35:47,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 23:35:47,731 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 23:35:47,735 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 23:35:47,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:35:43" (1/3) ... [2021-11-20 23:35:47,736 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69789854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:47, skipping insertion in model container [2021-11-20 23:35:47,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:35:44" (2/3) ... [2021-11-20 23:35:47,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69789854 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:35:47, skipping insertion in model container [2021-11-20 23:35:47,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:35:47" (3/3) ... [2021-11-20 23:35:47,742 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SAX_test9-2.i [2021-11-20 23:35:47,750 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 23:35:47,750 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-20 23:35:47,817 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 23:35:47,834 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 [2021-11-20 23:35:47,834 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-20 23:35:47,896 INFO L276 IsEmpty]: Start isEmpty. Operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:35:47,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-20 23:35:47,899 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:47,900 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-20 23:35:47,900 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 23:35:47,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:47,910 INFO L85 PathProgramCache]: Analyzing trace with hash 144769903, now seen corresponding path program 1 times [2021-11-20 23:35:47,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:47,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367154343] [2021-11-20 23:35:47,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:47,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:48,112 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:48,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162172548] [2021-11-20 23:35:48,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:48,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:48,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:48,118 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:48,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 23:35:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:48,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 23:35:48,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:48,367 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 11 treesize of output 7 [2021-11-20 23:35:48,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-20 23:35:48,430 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 25 treesize of output 17 [2021-11-20 23:35:48,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:48,439 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:35:48,440 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:48,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367154343] [2021-11-20 23:35:48,440 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:48,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162172548] [2021-11-20 23:35:48,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162172548] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:48,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:48,442 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:35:48,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037298329] [2021-11-20 23:35:48,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:48,449 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:48,449 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:48,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:48,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:48,482 INFO L87 Difference]: Start difference. First operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) 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) [2021-11-20 23:35:51,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:51,334 INFO L93 Difference]: Finished difference Result 3309 states and 6518 transitions. [2021-11-20 23:35:51,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:51,347 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 [2021-11-20 23:35:51,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:51,393 INFO L225 Difference]: With dead ends: 3309 [2021-11-20 23:35:51,393 INFO L226 Difference]: Without dead ends: 2167 [2021-11-20 23:35:51,403 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 [2021-11-20 23:35:51,407 INFO L933 BasicCegarLoop]: 2605 mSDtfsCounter, 1068 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:51,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 6799 Invalid, 627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-20 23:35:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2021-11-20 23:35:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1111. [2021-11-20 23:35:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.874581939799331) internal successors, (1121), 1105 states have internal predecessors, (1121), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:35:52,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2127 transitions. [2021-11-20 23:35:52,070 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2127 transitions. Word has length 4 [2021-11-20 23:35:52,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:52,070 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2127 transitions. [2021-11-20 23:35:52,072 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) [2021-11-20 23:35:52,072 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2127 transitions. [2021-11-20 23:35:52,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 23:35:52,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:52,074 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] [2021-11-20 23:35:52,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:52,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:52,291 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 23:35:52,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:52,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1404847448, now seen corresponding path program 1 times [2021-11-20 23:35:52,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:52,293 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48317220] [2021-11-20 23:35:52,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:52,293 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:52,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:52,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:52,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48317220] [2021-11-20 23:35:52,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48317220] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:52,392 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:52,398 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 23:35:52,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975971961] [2021-11-20 23:35:52,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:52,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:52,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:52,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:52,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:52,401 INFO L87 Difference]: Start difference. First operand 1111 states and 2127 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-20 23:35:54,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:54,732 INFO L93 Difference]: Finished difference Result 3200 states and 6229 transitions. [2021-11-20 23:35:54,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:35:54,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2021-11-20 23:35:54,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:54,757 INFO L225 Difference]: With dead ends: 3200 [2021-11-20 23:35:54,757 INFO L226 Difference]: Without dead ends: 2154 [2021-11-20 23:35:54,762 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 [2021-11-20 23:35:54,764 INFO L933 BasicCegarLoop]: 2598 mSDtfsCounter, 1051 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:54,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 6778 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-20 23:35:54,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-11-20 23:35:55,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1111. [2021-11-20 23:35:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.8729096989966556) internal successors, (1120), 1105 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-20 23:35:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2126 transitions. [2021-11-20 23:35:55,159 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2126 transitions. Word has length 20 [2021-11-20 23:35:55,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:55,159 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2126 transitions. [2021-11-20 23:35:55,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 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) [2021-11-20 23:35:55,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2126 transitions. [2021-11-20 23:35:55,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 23:35:55,161 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:55,161 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] [2021-11-20 23:35:55,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 23:35:55,162 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 23:35:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:55,163 INFO L85 PathProgramCache]: Analyzing trace with hash -980144550, now seen corresponding path program 1 times [2021-11-20 23:35:55,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:55,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399321411] [2021-11-20 23:35:55,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:55,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:55,185 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:55,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [130998776] [2021-11-20 23:35:55,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:55,186 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:55,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:55,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:55,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 23:35:55,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:55,383 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 23:35:55,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:55,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:55,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:35:55,527 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:55,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399321411] [2021-11-20 23:35:55,528 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:55,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [130998776] [2021-11-20 23:35:55,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [130998776] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:55,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:55,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 23:35:55,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66102021] [2021-11-20 23:35:55,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:55,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 23:35:55,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:55,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 23:35:55,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 23:35:55,531 INFO L87 Difference]: Start difference. First operand 1111 states and 2126 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) [2021-11-20 23:35:56,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:35:56,553 INFO L93 Difference]: Finished difference Result 3258 states and 6292 transitions. [2021-11-20 23:35:56,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 23:35:56,560 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 [2021-11-20 23:35:56,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:35:56,581 INFO L225 Difference]: With dead ends: 3258 [2021-11-20 23:35:56,581 INFO L226 Difference]: Without dead ends: 2152 [2021-11-20 23:35:56,586 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 [2021-11-20 23:35:56,587 INFO L933 BasicCegarLoop]: 2621 mSDtfsCounter, 1039 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-20 23:35:56,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 4711 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-20 23:35:56,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2021-11-20 23:35:56,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2148. [2021-11-20 23:35:56,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1135 states have (on average 1.905726872246696) internal successors, (2163), 2142 states have internal predecessors, (2163), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-20 23:35:56,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 4169 transitions. [2021-11-20 23:35:56,995 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 4169 transitions. Word has length 28 [2021-11-20 23:35:56,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:35:56,996 INFO L470 AbstractCegarLoop]: Abstraction has 2148 states and 4169 transitions. [2021-11-20 23:35:56,996 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) [2021-11-20 23:35:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 4169 transitions. [2021-11-20 23:35:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-20 23:35:56,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:35:56,998 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:35:57,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 23:35:57,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:57,217 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 23:35:57,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:35:57,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1908377992, now seen corresponding path program 1 times [2021-11-20 23:35:57,218 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:35:57,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079011676] [2021-11-20 23:35:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:57,218 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:35:57,251 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:35:57,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [41818890] [2021-11-20 23:35:57,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:35:57,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:35:57,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:35:57,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:35:57,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 23:35:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:35:58,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:35:58,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:35:58,253 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 23:35:58,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 23:35:58,253 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:35:58,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079011676] [2021-11-20 23:35:58,254 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:35:58,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41818890] [2021-11-20 23:35:58,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41818890] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 23:35:58,254 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 23:35:58,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 23:35:58,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59329260] [2021-11-20 23:35:58,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 23:35:58,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-20 23:35:58,255 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-20 23:35:58,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 23:35:58,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 23:35:58,256 INFO L87 Difference]: Start difference. First operand 2148 states and 4169 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:36:00,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 23:36:00,126 INFO L93 Difference]: Finished difference Result 4280 states and 8324 transitions. [2021-11-20 23:36:00,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 23:36:00,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-20 23:36:00,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 23:36:00,155 INFO L225 Difference]: With dead ends: 4280 [2021-11-20 23:36:00,157 INFO L226 Difference]: Without dead ends: 2150 [2021-11-20 23:36:00,165 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-20 23:36:00,168 INFO L933 BasicCegarLoop]: 2106 mSDtfsCounter, 1 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-11-20 23:36:00,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6314 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-11-20 23:36:00,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2021-11-20 23:36:00,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2021-11-20 23:36:00,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1136 states have (on average 1.9058098591549295) internal successors, (2165), 2144 states have internal predecessors, (2165), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-20 23:36:00,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 4172 transitions. [2021-11-20 23:36:00,556 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 4172 transitions. Word has length 41 [2021-11-20 23:36:00,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 23:36:00,557 INFO L470 AbstractCegarLoop]: Abstraction has 2150 states and 4172 transitions. [2021-11-20 23:36:00,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-20 23:36:00,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 4172 transitions. [2021-11-20 23:36:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-20 23:36:00,559 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 23:36:00,559 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-20 23:36:00,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 23:36:00,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-11-20 23:36:00,785 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-20 23:36:00,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 23:36:00,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1893633940, now seen corresponding path program 1 times [2021-11-20 23:36:00,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-20 23:36:00,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1761018972] [2021-11-20 23:36:00,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:00,786 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 23:36:00,812 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-20 23:36:00,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136789591] [2021-11-20 23:36:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 23:36:00,828 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 23:36:00,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 [2021-11-20 23:36:00,830 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 23:36:00,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_999c91d0-1aa8-4be2-ae9e-0f69d917bb21/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 23:36:01,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 23:36:01,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-20 23:36:01,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 23:36:01,363 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-20 23:36:01,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 23:36:01,518 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-20 23:36:01,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-20 23:36:01,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1761018972] [2021-11-20 23:36:01,519 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-20 23:36:01,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136789591] [2021-11-20 23:36:01,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136789591] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 23:36:01,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [144974223] [2021-11-20 23:36:01,554 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-20 23:36:01,554 INFO L166 IcfgInterpreter]: Building call graph [2021-11-20 23:36:01,559 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-20 23:36:01,564 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-20 23:36:01,566 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-20 23:36:01,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,686 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-20 23:36:01,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 27 treesize of output 37 [2021-11-20 23:36:01,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:01,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-20 23:36:01,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-20 23:36:01,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:01,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:01,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,911 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-20 23:36:01,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-20 23:36:01,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:01,969 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-20 23:36:01,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-20 23:36:02,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-20 23:36:02,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,069 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-20 23:36:02,069 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 [2021-11-20 23:36:02,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:02,325 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 0 case distinctions, treesize of input 71 treesize of output 59 [2021-11-20 23:36:02,366 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 [2021-11-20 23:36:02,394 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 [2021-11-20 23:36:03,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 75 [2021-11-20 23:36:03,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-20 23:36:03,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:03,980 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 [2021-11-20 23:36:04,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,024 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 [2021-11-20 23:36:04,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,076 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 [2021-11-20 23:36:04,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,141 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 [2021-11-20 23:36:04,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,219 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-20 23:36:04,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-20 23:36:04,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,374 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 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-20 23:36:04,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,457 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-20 23:36:04,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-20 23:36:04,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,534 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 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-20 23:36:04,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,644 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-20 23:36:04,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-20 23:36:04,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:04,715 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-20 23:36:04,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-20 23:36:05,422 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 11 treesize of output 7 [2021-11-20 23:36:05,426 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 11 treesize of output 7 [2021-11-20 23:36:05,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-20 23:36:05,494 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:36:05,494 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 85 treesize of output 88 [2021-11-20 23:36:05,522 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-20 23:36:05,522 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 88 treesize of output 91 [2021-11-20 23:36:05,549 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-20 23:36:05,549 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 91 treesize of output 94 [2021-11-20 23:36:05,670 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 [2021-11-20 23:36:05,677 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 [2021-11-20 23:36:05,689 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 [2021-11-20 23:36:05,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-20 23:36:05,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,838 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 68 treesize of output 26 [2021-11-20 23:36:05,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:05,889 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 46 treesize of output 16 [2021-11-20 23:36:06,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,246 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 68 treesize of output 26 [2021-11-20 23:36:06,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-20 23:36:06,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:06,398 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 46 treesize of output 16 [2021-11-20 23:36:14,917 WARN L227 SmtUtils]: Spent 8.36s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:36:14,918 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-20 23:36:14,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-20 23:36:14,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:24,366 WARN L227 SmtUtils]: Spent 9.41s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:36:24,367 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-20 23:36:24,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-20 23:36:34,546 WARN L227 SmtUtils]: Spent 10.05s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-20 23:36:34,547 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-20 23:36:34,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-20 23:36:35,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:35,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:35,705 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-20 23:36:35,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-20 23:36:35,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:35,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:35,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:36,784 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-20 23:36:36,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-20 23:36:38,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:38,769 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-20 23:36:38,769 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-20 23:36:39,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-20 23:36:39,282 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-20 23:36:39,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63