./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS --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 c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:38:39,765 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:38:39,768 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:38:39,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:38:39,813 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:38:39,818 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:38:39,821 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:38:39,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:38:39,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:38:39,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:38:39,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:38:39,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:38:39,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:38:39,843 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:38:39,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:38:39,846 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:38:39,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:38:39,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:38:39,852 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:38:39,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:38:39,860 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:38:39,861 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:38:39,864 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:38:39,865 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:38:39,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:38:39,876 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:38:39,877 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:38:39,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:38:39,880 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:38:39,881 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:38:39,881 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:38:39,883 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:38:39,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:38:39,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:38:39,890 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:38:39,890 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:38:39,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:38:39,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:38:39,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:38:39,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:38:39,894 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:38:39,895 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/config/svcomp-Overflow-32bit-Taipan_Default.epf [2022-11-19 07:38:39,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:38:39,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:38:39,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:38:39,940 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:38:39,941 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:38:39,941 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:38:39,941 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:38:39,942 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:38:39,942 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:38:39,942 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:38:39,944 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:38:39,944 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:38:39,944 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:38:39,945 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:38:39,945 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:38:39,945 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:38:39,946 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:38:39,946 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:38:39,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:38:39,947 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:38:39,948 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-19 07:38:39,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:38:39,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:38:39,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:38:39,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:38:39,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:38:39,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:38:39,952 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-19 07:38:39,952 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:38:39,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:38:39,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:38:39,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:38:39,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:38:39,954 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:38:39,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:39,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:38:39,955 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:38:39,955 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:38:39,955 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:38:39,956 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:38:39,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:38:39,956 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:38:39,957 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:38:39,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c2bc72e0ba847f7c079e01dc4ce9f95afa555e9d2ef7b4bcdf5e1274db86053e [2022-11-19 07:38:40,323 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:38:40,367 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:38:40,370 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:38:40,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:38:40,373 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:38:40,374 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2022-11-19 07:38:40,444 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/data/48d506393/f9a5991143ea411ba7e99e1aa6067338/FLAG431b4723b [2022-11-19 07:38:41,119 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:38:41,123 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i [2022-11-19 07:38:41,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/data/48d506393/f9a5991143ea411ba7e99e1aa6067338/FLAG431b4723b [2022-11-19 07:38:41,283 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/data/48d506393/f9a5991143ea411ba7e99e1aa6067338 [2022-11-19 07:38:41,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:38:41,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:38:41,290 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:41,290 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:38:41,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:38:41,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:41" (1/1) ... [2022-11-19 07:38:41,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd63ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:41, skipping insertion in model container [2022-11-19 07:38:41,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:41" (1/1) ... [2022-11-19 07:38:41,309 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:38:41,380 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:38:41,882 WARN L234 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_dd575dce-7956-42e6-b733-55f46b90b837/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2022-11-19 07:38:42,036 WARN L234 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_dd575dce-7956-42e6-b733-55f46b90b837/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2022-11-19 07:38:42,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:42,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:38:42,124 WARN L234 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_dd575dce-7956-42e6-b733-55f46b90b837/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[37019,37032] [2022-11-19 07:38:42,198 WARN L234 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_dd575dce-7956-42e6-b733-55f46b90b837/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test2-1.i[47352,47365] [2022-11-19 07:38:42,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:42,253 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:38:42,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42 WrapperNode [2022-11-19 07:38:42,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:42,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:42,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:38:42,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:38:42,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,376 INFO L138 Inliner]: procedures = 208, calls = 235, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 888 [2022-11-19 07:38:42,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:42,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:38:42,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:38:42,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:38:42,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,454 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:38:42,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:38:42,467 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:38:42,467 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:38:42,468 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (1/1) ... [2022-11-19 07:38:42,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:42,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:42,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:38:42,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:38:42,580 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 07:38:42,581 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 07:38:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:38:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 07:38:42,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:38:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:38:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:38:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 07:38:42,582 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 07:38:42,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:38:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:38:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:38:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:38:42,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:38:42,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:38:42,584 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:38:42,913 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:38:42,921 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:38:44,452 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:44,871 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:44,872 INFO L300 CfgBuilder]: Removed 54 assume(true) statements. [2022-11-19 07:38:44,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:44 BoogieIcfgContainer [2022-11-19 07:38:44,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:44,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:44,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:44,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:44,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:41" (1/3) ... [2022-11-19 07:38:44,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2223a516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:44, skipping insertion in model container [2022-11-19 07:38:44,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:42" (2/3) ... [2022-11-19 07:38:44,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2223a516 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:44, skipping insertion in model container [2022-11-19 07:38:44,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:44" (3/3) ... [2022-11-19 07:38:44,898 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_FNV_test2-1.i [2022-11-19 07:38:44,927 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:44,927 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-19 07:38:44,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:44,997 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@471c8468, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:44,998 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-11-19 07:38:45,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 07:38:45,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-19 07:38:45,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:45,012 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-19 07:38:45,012 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:38:45,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:45,019 INFO L85 PathProgramCache]: Analyzing trace with hash 22737132, now seen corresponding path program 1 times [2022-11-19 07:38:45,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:45,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382625886] [2022-11-19 07:38:45,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:45,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:45,204 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:38:45,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1931317353] [2022-11-19 07:38:45,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:45,206 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:45,211 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:45,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:38:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:45,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:38:45,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:45,507 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:38:45,520 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:38:45,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:38:45,599 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-19 07:38:45,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:38:45,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:38:45,634 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:45,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382625886] [2022-11-19 07:38:45,635 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:38:45,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931317353] [2022-11-19 07:38:45,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931317353] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:45,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:45,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:38:45,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834467534] [2022-11-19 07:38:45,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:45,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:38:45,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:45,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:38:45,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:38:45,703 INFO L87 Difference]: Start difference. First operand has 119 states, 100 states have (on average 1.82) internal successors, (182), 113 states have internal predecessors, (182), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-11-19 07:38:48,120 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:38:48,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:48,121 INFO L93 Difference]: Finished difference Result 308 states and 522 transitions. [2022-11-19 07:38:48,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:38:48,133 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 [2022-11-19 07:38:48,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:48,146 INFO L225 Difference]: With dead ends: 308 [2022-11-19 07:38:48,146 INFO L226 Difference]: Without dead ends: 187 [2022-11-19 07:38:48,151 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:38:48,160 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 75 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:48,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 333 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-19 07:38:48,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-11-19 07:38:48,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 121. [2022-11-19 07:38:48,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2718446601941749) internal successors, (131), 115 states have internal predecessors, (131), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 07:38:48,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 147 transitions. [2022-11-19 07:38:48,218 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 147 transitions. Word has length 4 [2022-11-19 07:38:48,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:48,218 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 147 transitions. [2022-11-19 07:38:48,219 INFO L496 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) [2022-11-19 07:38:48,219 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 147 transitions. [2022-11-19 07:38:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 07:38:48,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:48,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:48,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:38:48,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-19 07:38:48,428 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:38:48,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:48,429 INFO L85 PathProgramCache]: Analyzing trace with hash 196565253, now seen corresponding path program 1 times [2022-11-19 07:38:48,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:48,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480644687] [2022-11-19 07:38:48,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:48,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:49,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:38:49,049 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:49,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480644687] [2022-11-19 07:38:49,054 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480644687] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:49,054 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:49,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:49,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515792403] [2022-11-19 07:38:49,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:49,057 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:38:49,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:49,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:38:49,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:38:49,058 INFO L87 Difference]: Start difference. First operand 121 states and 147 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) [2022-11-19 07:38:50,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:50,965 INFO L93 Difference]: Finished difference Result 230 states and 289 transitions. [2022-11-19 07:38:50,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:38:50,972 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 [2022-11-19 07:38:50,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:50,973 INFO L225 Difference]: With dead ends: 230 [2022-11-19 07:38:50,973 INFO L226 Difference]: Without dead ends: 174 [2022-11-19 07:38:50,974 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:38:50,976 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 61 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:50,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 340 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-19 07:38:50,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-19 07:38:50,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 121. [2022-11-19 07:38:50,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 103 states have (on average 1.2621359223300972) internal successors, (130), 115 states have internal predecessors, (130), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-19 07:38:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 146 transitions. [2022-11-19 07:38:50,990 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 146 transitions. Word has length 20 [2022-11-19 07:38:50,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:50,991 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 146 transitions. [2022-11-19 07:38:50,991 INFO L496 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) [2022-11-19 07:38:50,991 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 146 transitions. [2022-11-19 07:38:50,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-19 07:38:50,992 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:50,992 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:38:50,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:50,993 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:38:50,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:50,994 INFO L85 PathProgramCache]: Analyzing trace with hash 592905191, now seen corresponding path program 1 times [2022-11-19 07:38:50,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:50,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046208355] [2022-11-19 07:38:50,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:50,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:51,134 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:38:51,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2047561151] [2022-11-19 07:38:51,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:51,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:51,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:51,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:51,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:38:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:52,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 07:38:52,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:52,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:38:52,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:38:52,110 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:52,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046208355] [2022-11-19 07:38:52,111 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:38:52,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047561151] [2022-11-19 07:38:52,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047561151] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:52,111 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:52,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:38:52,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563763745] [2022-11-19 07:38:52,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:52,112 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:52,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:52,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:52,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:52,114 INFO L87 Difference]: Start difference. First operand 121 states and 146 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) [2022-11-19 07:38:53,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:38:54,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:54,320 INFO L93 Difference]: Finished difference Result 288 states and 352 transitions. [2022-11-19 07:38:54,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:54,325 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 [2022-11-19 07:38:54,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:54,326 INFO L225 Difference]: With dead ends: 288 [2022-11-19 07:38:54,327 INFO L226 Difference]: Without dead ends: 172 [2022-11-19 07:38:54,327 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:38:54,329 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 49 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:54,329 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 256 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 07:38:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-11-19 07:38:54,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 168. [2022-11-19 07:38:54,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 145 states have (on average 1.2620689655172415) internal successors, (183), 162 states have internal predecessors, (183), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:38:54,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 209 transitions. [2022-11-19 07:38:54,347 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 209 transitions. Word has length 28 [2022-11-19 07:38:54,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:54,347 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 209 transitions. [2022-11-19 07:38:54,348 INFO L496 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) [2022-11-19 07:38:54,348 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 209 transitions. [2022-11-19 07:38:54,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-19 07:38:54,349 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:54,349 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:38:54,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:38:54,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:54,565 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:38:54,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:54,566 INFO L85 PathProgramCache]: Analyzing trace with hash -1496687605, now seen corresponding path program 1 times [2022-11-19 07:38:54,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:54,566 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572329932] [2022-11-19 07:38:54,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:54,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:54,638 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:38:54,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [675164289] [2022-11-19 07:38:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:54,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:54,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:54,640 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:54,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 07:39:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:39:29,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 715 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:39:29,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:39:29,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:39:29,741 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:39:29,741 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:39:29,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572329932] [2022-11-19 07:39:29,741 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:39:29,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675164289] [2022-11-19 07:39:29,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675164289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:39:29,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:39:29,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 07:39:29,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027837364] [2022-11-19 07:39:29,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:39:29,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:39:29,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:39:29,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:39:29,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 07:39:29,745 INFO L87 Difference]: Start difference. First operand 168 states and 209 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:39:31,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 07:39:32,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:39:32,311 INFO L93 Difference]: Finished difference Result 320 states and 404 transitions. [2022-11-19 07:39:32,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:39:32,318 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-19 07:39:32,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:39:32,320 INFO L225 Difference]: With dead ends: 320 [2022-11-19 07:39:32,320 INFO L226 Difference]: Without dead ends: 170 [2022-11-19 07:39:32,321 INFO L412 NwaCegarLoop]: 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 [2022-11-19 07:39:32,322 INFO L413 NwaCegarLoop]: 127 mSDtfsCounter, 1 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:39:32,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 377 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-11-19 07:39:32,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-19 07:39:32,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2022-11-19 07:39:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 146 states have (on average 1.2671232876712328) internal successors, (185), 164 states have internal predecessors, (185), 13 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 13 states have call successors, (14) [2022-11-19 07:39:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 212 transitions. [2022-11-19 07:39:32,342 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 212 transitions. Word has length 41 [2022-11-19 07:39:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:39:32,345 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 212 transitions. [2022-11-19 07:39:32,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:39:32,346 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 212 transitions. [2022-11-19 07:39:32,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-19 07:39:32,347 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:39:32,348 INFO L195 NwaCegarLoop]: 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] [2022-11-19 07:39:32,392 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-19 07:39:32,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:32,559 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2022-11-19 07:39:32,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:39:32,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1899561301, now seen corresponding path program 1 times [2022-11-19 07:39:32,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:39:32,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285136808] [2022-11-19 07:39:32,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:32,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:39:32,632 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 07:39:32,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [352761993] [2022-11-19 07:39:32,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:39:32,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:39:32,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:39:32,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:39:32,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd575dce-7956-42e6-b733-55f46b90b837/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-19 07:40:06,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:40:06,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-19 07:40:06,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:40:06,800 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:40:06,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:40:06,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:40:06,986 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:40:06,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285136808] [2022-11-19 07:40:06,986 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 07:40:06,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352761993] [2022-11-19 07:40:06,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352761993] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:40:06,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1502721638] [2022-11-19 07:40:07,013 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2022-11-19 07:40:07,013 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:40:07,018 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:40:07,025 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:40:07,025 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:40:07,106 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,108 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:07,120 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:07,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,146 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-19 07:40:07,147 INFO L350 Elim1Store]: Elim1 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 1 case distinctions, treesize of input 17 treesize of output 26 [2022-11-19 07:40:07,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,186 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 07:40:07,186 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:07,210 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:40:07,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,310 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 07:40:07,311 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:07,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,342 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 38 [2022-11-19 07:40:07,359 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:40:07,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 07:40:07,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,387 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-11-19 07:40:07,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:07,461 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 84 treesize of output 64 [2022-11-19 07:40:07,481 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-19 07:40:07,496 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 1 [2022-11-19 07:40:08,085 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-19 07:40:08,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 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 [2022-11-19 07:40:08,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,174 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9896995 treesize of output 5376286 [2022-11-19 07:40:08,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,220 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,260 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 9896993 treesize of output 5376298 [2022-11-19 07:40:08,347 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-19 07:40:08,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,395 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,397 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:40:08,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,506 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:40:08,552 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 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 [2022-11-19 07:40:08,657 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 07:40:08,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,756 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 07:40:08,756 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 07:40:08,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,787 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 07:40:08,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:08,848 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 07:40:08,897 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 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 [2022-11-19 07:40:09,121 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,131 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,138 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 65 [2022-11-19 07:40:09,179 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:40:09,189 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 63 [2022-11-19 07:40:09,221 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,227 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,234 INFO L350 Elim1Store]: Elim1 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 [2022-11-19 07:40:09,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:40:09,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,378 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 30 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 07:40:09,431 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:40:09,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:40:09,716 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 07:40:09,743 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 07:40:09,765 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 07:40:11,779 INFO L217 Elim1Store]: Index analysis took 1641 ms [2022-11-19 07:40:17,826 WARN L233 SmtUtils]: Spent 6.04s on a formula simplification. DAG size of input: 85 DAG size of output: 22 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:40:17,826 INFO L321 Elim1Store]: treesize reduction 142, result has 15.5 percent of original size [2022-11-19 07:40:17,827 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 07:40:18,991 INFO L217 Elim1Store]: Index analysis took 952 ms [2022-11-19 07:40:22,544 INFO L321 Elim1Store]: treesize reduction 206, result has 11.2 percent of original size [2022-11-19 07:40:22,545 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519780 [2022-11-19 07:40:33,317 WARN L233 SmtUtils]: Spent 10.43s on a formula simplification. DAG size of input: 67 DAG size of output: 32 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:40:33,317 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-11-19 07:40:33,318 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1986 treesize of output 1481 [2022-11-19 07:40:33,532 INFO L217 Elim1Store]: Index analysis took 126 ms [2022-11-19 07:40:53,962 WARN L233 SmtUtils]: Spent 20.43s on a formula simplification. DAG size of input: 90 DAG size of output: 45 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:40:53,962 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-11-19 07:40:53,963 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2005 treesize of output 1824 [2022-11-19 07:40:54,835 INFO L217 Elim1Store]: Index analysis took 604 ms [2022-11-19 07:41:15,936 WARN L233 SmtUtils]: Spent 20.33s on a formula simplification. DAG size of input: 249 DAG size of output: 147 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 07:41:15,937 INFO L321 Elim1Store]: treesize reduction 2466, result has 32.0 percent of original size [2022-11-19 07:41:15,937 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 2097 [2022-11-19 07:41:18,930 INFO L217 Elim1Store]: Index analysis took 1481 ms [2022-11-19 07:41:19,739 INFO L321 Elim1Store]: treesize reduction 13, result has 38.1 percent of original size [2022-11-19 07:41:19,740 INFO L350 Elim1Store]: Elim1 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 3 case distinctions, treesize of input 91 treesize of output 73 [2022-11-19 07:41:19,849 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-11-19 07:41:20,955 INFO L217 Elim1Store]: Index analysis took 523 ms [2022-11-19 07:41:21,751 INFO L321 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-11-19 07:41:21,752 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 70 treesize of output 94 [2022-11-19 07:41:24,090 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:41:24,092 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 13 [2022-11-19 07:41:24,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:41:24,275 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-19 07:41:24,375 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:41:24,377 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 20 [2022-11-19 07:41:24,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:41:24,483 INFO L173 IndexEqualityManager]: detected equality via solver [2022-11-19 07:41:24,484 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-11-19 07:41:24,512 WARN L207 Elim1Store]: Array PQE input equivalent to false [2022-11-19 07:41:24,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:41:24,591 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 13 [2022-11-19 07:41:24,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:41:24,721 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 15 [2022-11-19 07:41:34,345 INFO L217 Elim1Store]: Index analysis took 1438 ms