./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 19:56:53,543 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 19:56:53,546 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 19:56:53,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 19:56:53,593 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 19:56:53,595 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 19:56:53,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 19:56:53,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 19:56:53,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 19:56:53,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 19:56:53,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 19:56:53,605 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 19:56:53,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 19:56:53,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 19:56:53,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 19:56:53,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 19:56:53,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 19:56:53,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 19:56:53,616 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 19:56:53,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 19:56:53,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 19:56:53,628 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 19:56:53,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 19:56:53,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 19:56:53,645 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 19:56:53,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 19:56:53,646 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 19:56:53,647 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 19:56:53,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 19:56:53,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 19:56:53,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 19:56:53,650 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 19:56:53,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 19:56:53,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 19:56:53,657 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 19:56:53,658 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 19:56:53,659 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 19:56:53,659 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 19:56:53,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 19:56:53,663 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 19:56:53,664 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 19:56:53,664 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-25 19:56:53,707 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 19:56:53,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 19:56:53,707 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 19:56:53,707 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 19:56:53,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 19:56:53,708 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 19:56:53,708 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 19:56:53,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 19:56:53,708 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 19:56:53,709 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 19:56:53,710 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 19:56:53,710 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 19:56:53,710 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 19:56:53,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 19:56:53,711 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 19:56:53,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-25 19:56:53,711 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 19:56:53,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 19:56:53,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 19:56:53,712 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 19:56:53,712 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 19:56:53,712 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 19:56:53,712 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-25 19:56:53,713 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 19:56:53,713 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 19:56:53,713 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 19:56:53,713 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 19:56:53,713 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 19:56:53,714 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 19:56:53,714 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:56:53,714 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 19:56:53,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 19:56:53,715 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 19:56:53,716 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9ddeff00ba0e288e2e7b04a6005a0db991f8cee358fe3ef021af7107ab321b8e [2021-11-25 19:56:54,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 19:56:54,030 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 19:56:54,032 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 19:56:54,034 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 19:56:54,034 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 19:56:54,036 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2021-11-25 19:56:54,121 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/data/eadbee4b3/c06f27eec5774cde88b6a53d620c5c81/FLAGf3f30e9b7 [2021-11-25 19:56:54,718 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 19:56:54,719 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i [2021-11-25 19:56:54,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/data/eadbee4b3/c06f27eec5774cde88b6a53d620c5c81/FLAGf3f30e9b7 [2021-11-25 19:56:54,932 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/data/eadbee4b3/c06f27eec5774cde88b6a53d620c5c81 [2021-11-25 19:56:54,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 19:56:54,938 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 19:56:54,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 19:56:54,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 19:56:54,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 19:56:54,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:56:54" (1/1) ... [2021-11-25 19:56:54,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f72d090 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:54, skipping insertion in model container [2021-11-25 19:56:54,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 07:56:54" (1/1) ... [2021-11-25 19:56:54,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 19:56:55,036 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 19:56:55,555 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i[33021,33034] [2021-11-25 19:56:55,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:56:55,768 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 19:56:55,817 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test4-1.i[33021,33034] [2021-11-25 19:56:55,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 19:56:55,949 INFO L208 MainTranslator]: Completed translation [2021-11-25 19:56:55,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55 WrapperNode [2021-11-25 19:56:55,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 19:56:55,951 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 19:56:55,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 19:56:55,952 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 19:56:55,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:55,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,082 INFO L137 Inliner]: procedures = 177, calls = 349, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1159 [2021-11-25 19:56:56,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 19:56:56,084 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 19:56:56,084 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 19:56:56,084 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 19:56:56,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,108 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 19:56:56,257 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 19:56:56,257 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 19:56:56,257 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 19:56:56,258 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (1/1) ... [2021-11-25 19:56:56,265 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 19:56:56,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:56:56,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 19:56:56,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 19:56:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 19:56:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-25 19:56:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-25 19:56:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 19:56:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-25 19:56:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-25 19:56:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 19:56:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 19:56:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 19:56:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 19:56:56,653 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 19:56:56,655 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 19:56:57,748 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 19:56:58,159 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 19:56:58,159 INFO L301 CfgBuilder]: Removed 60 assume(true) statements. [2021-11-25 19:56:58,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:56:58 BoogieIcfgContainer [2021-11-25 19:56:58,162 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 19:56:58,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 19:56:58,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 19:56:58,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 19:56:58,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 07:56:54" (1/3) ... [2021-11-25 19:56:58,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13422b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:56:58, skipping insertion in model container [2021-11-25 19:56:58,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 07:56:55" (2/3) ... [2021-11-25 19:56:58,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13422b38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 07:56:58, skipping insertion in model container [2021-11-25 19:56:58,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 07:56:58" (3/3) ... [2021-11-25 19:56:58,177 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test4-1.i [2021-11-25 19:56:58,183 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 19:56:58,183 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-25 19:56:58,231 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 19:56:58,237 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-25 19:56:58,238 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-25 19:56:58,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:56:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-25 19:56:58,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:56:58,261 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-25 19:56:58,262 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:56:58,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:56:58,268 INFO L85 PathProgramCache]: Analyzing trace with hash 894004, now seen corresponding path program 1 times [2021-11-25 19:56:58,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:56:58,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235653088] [2021-11-25 19:56:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:58,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:56:58,406 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:56:58,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [149435420] [2021-11-25 19:56:58,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:56:58,407 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:56:58,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:56:58,417 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:56:58,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-25 19:56:58,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:56:58,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:56:58,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:56:58,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:56:58,666 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:56:58,666 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:56:58,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235653088] [2021-11-25 19:56:58,667 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:56:58,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149435420] [2021-11-25 19:56:58,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149435420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:56:58,669 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:56:58,669 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-25 19:56:58,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547586142] [2021-11-25 19:56:58,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:56:58,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:56:58,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:56:58,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:56:58,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:56:58,713 INFO L87 Difference]: Start difference. First operand has 135 states, 110 states have (on average 1.809090909090909) internal successors, (199), 126 states have internal predecessors, (199), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:00,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:00,066 INFO L93 Difference]: Finished difference Result 368 states and 640 transitions. [2021-11-25 19:57:00,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:57:00,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 3 [2021-11-25 19:57:00,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:00,087 INFO L225 Difference]: With dead ends: 368 [2021-11-25 19:57:00,087 INFO L226 Difference]: Without dead ends: 233 [2021-11-25 19:57:00,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:57:00,094 INFO L933 BasicCegarLoop]: 162 mSDtfsCounter, 102 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:00,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 308 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-25 19:57:00,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-11-25 19:57:00,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 135. [2021-11-25 19:57:00,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 112 states have (on average 1.2410714285714286) internal successors, (139), 126 states have internal predecessors, (139), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-25 19:57:00,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 171 transitions. [2021-11-25 19:57:00,150 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 171 transitions. Word has length 3 [2021-11-25 19:57:00,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:00,150 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 171 transitions. [2021-11-25 19:57:00,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:00,151 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 171 transitions. [2021-11-25 19:57:00,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-25 19:57:00,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:00,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:00,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-25 19:57:00,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-25 19:57:00,365 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:00,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1485228930, now seen corresponding path program 1 times [2021-11-25 19:57:00,371 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:00,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004431327] [2021-11-25 19:57:00,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:00,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:00,652 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:00,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [873038339] [2021-11-25 19:57:00,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:00,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:00,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:00,665 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:00,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-25 19:57:01,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:01,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 3016 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:57:01,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:57:01,969 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:57:01,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:01,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004431327] [2021-11-25 19:57:01,975 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:01,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [873038339] [2021-11-25 19:57:01,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [873038339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:57:01,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:57:01,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:57:01,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706445624] [2021-11-25 19:57:01,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:57:01,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:57:01,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:57:01,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:57:01,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:57:01,981 INFO L87 Difference]: Start difference. First operand 135 states and 171 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:04,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-25 19:57:05,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:05,435 INFO L93 Difference]: Finished difference Result 233 states and 285 transitions. [2021-11-25 19:57:05,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-25 19:57:05,442 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 48 [2021-11-25 19:57:05,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:05,445 INFO L225 Difference]: With dead ends: 233 [2021-11-25 19:57:05,445 INFO L226 Difference]: Without dead ends: 232 [2021-11-25 19:57:05,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:57:05,447 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 59 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:05,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [65 Valid, 447 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 3.4s Time] [2021-11-25 19:57:05,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-11-25 19:57:05,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 230. [2021-11-25 19:57:05,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 201 states have (on average 1.1840796019900497) internal successors, (238), 215 states have internal predecessors, (238), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:57:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 282 transitions. [2021-11-25 19:57:05,471 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 282 transitions. Word has length 48 [2021-11-25 19:57:05,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:05,472 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 282 transitions. [2021-11-25 19:57:05,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:05,472 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 282 transitions. [2021-11-25 19:57:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-25 19:57:05,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:05,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:05,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-25 19:57:05,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-11-25 19:57:05,689 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:05,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:05,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1202544191, now seen corresponding path program 1 times [2021-11-25 19:57:05,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:05,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832918480] [2021-11-25 19:57:05,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:05,691 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:05,958 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:05,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [152975999] [2021-11-25 19:57:05,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:05,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:05,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:05,961 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:05,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-25 19:57:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:07,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 3017 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-25 19:57:07,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:57:07,389 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:57:07,390 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832918480] [2021-11-25 19:57:07,390 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:07,390 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152975999] [2021-11-25 19:57:07,390 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152975999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:57:07,391 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:57:07,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:57:07,391 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931706791] [2021-11-25 19:57:07,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:57:07,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:57:07,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:57:07,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:57:07,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:57:07,393 INFO L87 Difference]: Start difference. First operand 230 states and 282 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:10,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:10,065 INFO L93 Difference]: Finished difference Result 230 states and 282 transitions. [2021-11-25 19:57:10,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:57:10,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 49 [2021-11-25 19:57:10,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:10,082 INFO L225 Difference]: With dead ends: 230 [2021-11-25 19:57:10,082 INFO L226 Difference]: Without dead ends: 229 [2021-11-25 19:57:10,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:57:10,084 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 86 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:10,084 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 304 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2021-11-25 19:57:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2021-11-25 19:57:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 229. [2021-11-25 19:57:10,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 201 states have (on average 1.1791044776119404) internal successors, (237), 214 states have internal predecessors, (237), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:57:10,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 281 transitions. [2021-11-25 19:57:10,109 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 281 transitions. Word has length 49 [2021-11-25 19:57:10,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:10,110 INFO L470 AbstractCegarLoop]: Abstraction has 229 states and 281 transitions. [2021-11-25 19:57:10,110 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:10,110 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 281 transitions. [2021-11-25 19:57:10,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-11-25 19:57:10,112 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:10,112 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:10,151 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-25 19:57:10,341 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:10,341 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:10,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:10,342 INFO L85 PathProgramCache]: Analyzing trace with hash 298795953, now seen corresponding path program 1 times [2021-11-25 19:57:10,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:10,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651849949] [2021-11-25 19:57:10,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:10,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:10,576 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:10,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1764311199] [2021-11-25 19:57:10,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:10,577 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:10,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:10,578 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:10,591 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-25 19:57:11,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:12,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 3046 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:57:12,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 19:57:12,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:57:12,214 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:12,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651849949] [2021-11-25 19:57:12,214 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:12,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1764311199] [2021-11-25 19:57:12,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1764311199] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:57:12,215 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:57:12,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:57:12,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760190403] [2021-11-25 19:57:12,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:57:12,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:57:12,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:57:12,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:57:12,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:57:12,217 INFO L87 Difference]: Start difference. First operand 229 states and 281 transitions. Second operand has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:14,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:14,486 INFO L93 Difference]: Finished difference Result 384 states and 476 transitions. [2021-11-25 19:57:14,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:57:14,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 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 51 [2021-11-25 19:57:14,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:14,494 INFO L225 Difference]: With dead ends: 384 [2021-11-25 19:57:14,494 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 19:57:14,496 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:57:14,497 INFO L933 BasicCegarLoop]: 152 mSDtfsCounter, 38 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:14,497 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [43 Valid, 289 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-11-25 19:57:14,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 19:57:14,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 19:57:14,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 199 states have (on average 1.1758793969849246) internal successors, (234), 212 states have internal predecessors, (234), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:57:14,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 278 transitions. [2021-11-25 19:57:14,539 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 278 transitions. Word has length 51 [2021-11-25 19:57:14,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:14,540 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 278 transitions. [2021-11-25 19:57:14,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.0) internal successors, (51), 2 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 19:57:14,540 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 278 transitions. [2021-11-25 19:57:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-25 19:57:14,549 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:14,549 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:14,581 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-25 19:57:14,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:14,765 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:14,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash 122534312, now seen corresponding path program 1 times [2021-11-25 19:57:14,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:14,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123268852] [2021-11-25 19:57:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:14,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:14,878 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:14,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1837565] [2021-11-25 19:57:14,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:14,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:14,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:14,881 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:14,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-25 19:57:16,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:16,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 2183 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-25 19:57:16,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:16,269 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-25 19:57:16,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:57:16,269 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:16,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123268852] [2021-11-25 19:57:16,270 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:16,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837565] [2021-11-25 19:57:16,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:57:16,271 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:57:16,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 19:57:16,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905658864] [2021-11-25 19:57:16,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:57:16,272 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 19:57:16,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:57:16,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 19:57:16,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:57:16,274 INFO L87 Difference]: Start difference. First operand 227 states and 278 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:57:17,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:17,809 INFO L93 Difference]: Finished difference Result 426 states and 524 transitions. [2021-11-25 19:57:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 19:57:17,818 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 64 [2021-11-25 19:57:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:17,820 INFO L225 Difference]: With dead ends: 426 [2021-11-25 19:57:17,820 INFO L226 Difference]: Without dead ends: 225 [2021-11-25 19:57:17,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 19:57:17,822 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 11 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:17,823 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 286 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-11-25 19:57:17,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2021-11-25 19:57:17,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-11-25 19:57:17,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 197 states have (on average 1.1725888324873097) internal successors, (231), 210 states have internal predecessors, (231), 22 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 13 states have call predecessors, (22), 22 states have call successors, (22) [2021-11-25 19:57:17,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 275 transitions. [2021-11-25 19:57:17,838 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 275 transitions. Word has length 64 [2021-11-25 19:57:17,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:17,839 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 275 transitions. [2021-11-25 19:57:17,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 2 states have internal predecessors, (58), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-25 19:57:17,839 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 275 transitions. [2021-11-25 19:57:17,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2021-11-25 19:57:17,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:17,842 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:17,870 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-25 19:57:18,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:18,049 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:18,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:18,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1762473051, now seen corresponding path program 1 times [2021-11-25 19:57:18,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:18,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319789172] [2021-11-25 19:57:18,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:18,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:18,144 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:18,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1849628912] [2021-11-25 19:57:18,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:18,149 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:18,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:18,151 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:18,167 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-25 19:57:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:20,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 1320 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:57:20,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:20,881 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-25 19:57:20,881 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 19:57:20,883 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:20,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319789172] [2021-11-25 19:57:20,884 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:20,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1849628912] [2021-11-25 19:57:20,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1849628912] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 19:57:20,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 19:57:20,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-25 19:57:20,886 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748449522] [2021-11-25 19:57:20,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 19:57:20,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-25 19:57:20,888 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 19:57:20,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-25 19:57:20,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-25 19:57:20,889 INFO L87 Difference]: Start difference. First operand 225 states and 275 transitions. Second operand has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:57:24,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 19:57:24,661 INFO L93 Difference]: Finished difference Result 432 states and 542 transitions. [2021-11-25 19:57:24,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-25 19:57:24,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 77 [2021-11-25 19:57:24,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 19:57:24,672 INFO L225 Difference]: With dead ends: 432 [2021-11-25 19:57:24,672 INFO L226 Difference]: Without dead ends: 227 [2021-11-25 19:57:24,673 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-25 19:57:24,674 INFO L933 BasicCegarLoop]: 147 mSDtfsCounter, 1 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-11-25 19:57:24,675 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 434 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2021-11-25 19:57:24,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-11-25 19:57:24,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2021-11-25 19:57:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 198 states have (on average 1.1767676767676767) internal successors, (233), 212 states have internal predecessors, (233), 22 states have call successors, (22), 2 states have call predecessors, (22), 3 states have return successors, (26), 13 states have call predecessors, (26), 22 states have call successors, (26) [2021-11-25 19:57:24,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 281 transitions. [2021-11-25 19:57:24,697 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 281 transitions. Word has length 77 [2021-11-25 19:57:24,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 19:57:24,698 INFO L470 AbstractCegarLoop]: Abstraction has 227 states and 281 transitions. [2021-11-25 19:57:24,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 22.333333333333332) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (4), 2 states have call predecessors, (4), 3 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-25 19:57:24,698 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 281 transitions. [2021-11-25 19:57:24,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-25 19:57:24,702 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 19:57:24,702 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 19:57:24,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-25 19:57:24,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-25 19:57:24,916 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-25 19:57:24,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 19:57:24,917 INFO L85 PathProgramCache]: Analyzing trace with hash -211946721, now seen corresponding path program 1 times [2021-11-25 19:57:24,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 19:57:24,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310191348] [2021-11-25 19:57:24,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:24,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 19:57:25,008 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-25 19:57:25,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [781369771] [2021-11-25 19:57:25,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 19:57:25,009 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-25 19:57:25,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 19:57:25,019 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-25 19:57:25,024 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f852ffdb-fbd1-4c20-9282-601ae0cefea7/bin/utaipan-eEHZpOm5b7/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-25 19:57:27,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 19:57:27,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 1380 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-25 19:57:27,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 19:57:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-11-25 19:57:27,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-25 19:57:28,139 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 2 proven. 16 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-25 19:57:28,139 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 19:57:28,139 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310191348] [2021-11-25 19:57:28,140 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-25 19:57:28,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781369771] [2021-11-25 19:57:28,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781369771] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-25 19:57:28,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1695671677] [2021-11-25 19:57:28,164 INFO L159 IcfgInterpreter]: Started Sifa with 67 locations of interest [2021-11-25 19:57:28,164 INFO L166 IcfgInterpreter]: Building call graph [2021-11-25 19:57:28,169 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-25 19:57:28,175 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-25 19:57:28,176 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-25 19:57:28,582 INFO L354 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2021-11-25 19:57:28,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 30 [2021-11-25 19:57:28,634 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-25 19:57:28,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-25 19:57:28,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:57:28,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-25 19:57:28,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-25 19:57:28,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:57:28,737 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-25 19:57:28,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:28,759 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-25 19:57:29,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:29,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 54 [2021-11-25 19:57:29,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-25 19:57:29,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:29,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:29,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:29,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 19 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 78 [2021-11-25 19:57:29,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-25 19:57:29,654 INFO L354 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2021-11-25 19:57:29,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 44 treesize of output 77 [2021-11-25 19:57:29,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 28 treesize of output 36 [2021-11-25 19:57:29,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 19:57:29,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:29,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:57:29,880 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:57:29,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:57:29,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 19:57:29,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 67 [2021-11-25 19:57:29,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:29,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-25 19:57:29,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:57:29,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-25 19:57:29,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-25 19:57:30,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 19:57:30,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-25 19:57:30,094 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,095 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:30,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 46 treesize of output 16 [2021-11-25 19:57:30,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 [2021-11-25 19:57:30,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:30,291 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-25 19:57:40,231 WARN L227 SmtUtils]: Spent 9.80s on a formula simplification. DAG size of input: 66 DAG size of output: 32 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:57:40,232 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-25 19:57:40,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 1998 treesize of output 1475 [2021-11-25 19:57:40,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:52,534 WARN L227 SmtUtils]: Spent 12.15s on a formula simplification. DAG size of input: 90 DAG size of output: 46 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:57:52,535 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-25 19:57:52,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2099 treesize of output 1817 [2021-11-25 19:57:52,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:57:53,223 INFO L244 Elim1Store]: Index analysis took 467 ms [2021-11-25 19:58:05,974 WARN L227 SmtUtils]: Spent 12.44s on a formula simplification. DAG size of input: 244 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-25 19:58:05,975 INFO L354 Elim1Store]: treesize reduction 2566, result has 31.1 percent of original size [2021-11-25 19:58:05,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 8 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 1606 treesize of output 1377 [2021-11-25 19:58:07,012 INFO L354 Elim1Store]: treesize reduction 72, result has 33.9 percent of original size [2021-11-25 19:58:07,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 65 [2021-11-25 19:58:07,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 27 treesize of output 38 [2021-11-25 19:58:07,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:07,911 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-25 19:58:07,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-25 19:58:08,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:08,308 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:58:08,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 51 treesize of output 61 [2021-11-25 19:58:08,386 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:08,459 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:08,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:08,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-25 19:58:08,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:08,885 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-25 19:58:08,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-25 19:58:08,942 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:09,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,232 INFO L354 Elim1Store]: treesize reduction 17, result has 37.0 percent of original size [2021-11-25 19:58:09,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 24 [2021-11-25 19:58:09,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:09,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 11 [2021-11-25 19:58:09,379 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:09,424 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:09,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:09,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:09,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 57 [2021-11-25 19:58:10,515 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:10,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:10,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:10,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:10,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:10,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:10,677 INFO L244 Elim1Store]: Index analysis took 162 ms [2021-11-25 19:58:10,784 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:58:10,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3554 treesize of output 3334 [2021-11-25 19:58:10,905 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:10,962 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:11,054 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:11,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,070 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:11,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,177 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,177 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-25 19:58:11,278 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-25 19:58:11,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3244 treesize of output 3012 [2021-11-25 19:58:11,391 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:11,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 19:58:11,555 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:11,597 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:11,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,782 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:11,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:11,877 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 19:58:11,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 19:58:12,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:12,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:12,093 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:12,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:12,176 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:12,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:12,190 INFO L244 Elim1Store]: Index analysis took 115 ms [2021-11-25 19:58:12,201 INFO L354 Elim1Store]: treesize reduction 217, result has 0.5 percent of original size [2021-11-25 19:58:12,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 19:58:12,832 INFO L244 Elim1Store]: Index analysis took 209 ms [2021-11-25 19:58:13,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:14,835 INFO L354 Elim1Store]: treesize reduction 389, result has 79.0 percent of original size [2021-11-25 19:58:14,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 3586 treesize of output 4585 [2021-11-25 19:58:15,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:15,966 INFO L244 Elim1Store]: Index analysis took 147 ms [2021-11-25 19:58:16,378 INFO L354 Elim1Store]: treesize reduction 1803, result has 2.5 percent of original size [2021-11-25 19:58:16,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3575 treesize of output 3165 [2021-11-25 19:58:16,605 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:16,671 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:17,038 INFO L244 Elim1Store]: Index analysis took 283 ms [2021-11-25 19:58:19,776 INFO L354 Elim1Store]: treesize reduction 413, result has 77.9 percent of original size [2021-11-25 19:58:19,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 3265 treesize of output 4256 [2021-11-25 19:58:22,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:22,704 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:22,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:22,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:22,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:22,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:22,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:22,782 INFO L244 Elim1Store]: Index analysis took 111 ms [2021-11-25 19:58:22,800 INFO L354 Elim1Store]: treesize reduction 189, result has 0.5 percent of original size [2021-11-25 19:58:22,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 3188 treesize of output 2794 [2021-11-25 19:58:22,915 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:22,965 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:24,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:24,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:24,093 INFO L244 Elim1Store]: Index analysis took 165 ms [2021-11-25 19:58:24,409 INFO L354 Elim1Store]: treesize reduction 1822, result has 0.1 percent of original size [2021-11-25 19:58:24,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 3591 treesize of output 1 [2021-11-25 19:58:26,798 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:26,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:26,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:26,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:26,854 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-11-25 19:58:27,546 INFO L354 Elim1Store]: treesize reduction 430, result has 62.8 percent of original size [2021-11-25 19:58:27,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3554 treesize of output 3840 [2021-11-25 19:58:27,758 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:27,837 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:28,001 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:28,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,046 INFO L244 Elim1Store]: Index analysis took 122 ms [2021-11-25 19:58:28,730 INFO L354 Elim1Store]: treesize reduction 430, result has 63.2 percent of original size [2021-11-25 19:58:28,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3244 treesize of output 3530 [2021-11-25 19:58:28,916 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:28,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,935 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:28,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:28,958 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 3167 treesize of output 2791 [2021-11-25 19:58:29,040 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:29,086 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-25 19:58:29,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,424 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 19:58:29,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3570 treesize of output 3126 [2021-11-25 19:58:29,727 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-25 19:58:29,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:29,790 INFO L244 Elim1Store]: Index analysis took 133 ms [2021-11-25 19:58:29,897 INFO L354 Elim1Store]: treesize reduction 1160, result has 0.1 percent of original size [2021-11-25 19:58:29,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 3565 treesize of output 3121 [2021-11-25 19:58:32,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:32,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:32,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-25 19:58:32,599 INFO L244 Elim1Store]: Index analysis took 275 ms [2021-11-25 19:58:37,574 INFO L354 Elim1Store]: treesize reduction 1554, result has 60.0 percent of original size [2021-11-25 19:58:37,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 9 select indices, 9 select index equivalence classes, 9 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 31 case distinctions, treesize of input 118197 treesize of output 117947 [2021-11-25 20:03:17,292 WARN L227 SmtUtils]: Spent 6.24s on a formula simplification that was a NOOP. DAG size: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:03:42,460 WARN L227 SmtUtils]: Spent 19.06s on a formula simplification. DAG size of input: 1853 DAG size of output: 1853 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-25 20:06:45,606 WARN L227 SmtUtils]: Spent 18.92s on a formula simplification. DAG size of input: 1677 DAG size of output: 1677 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)