./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50ec0e1b32f61b9ee697cf2c7598d178ee7b7b08e68108a0f594c4a6a80ab80c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:53:35,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:53:35,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:53:35,453 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:53:35,454 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:53:35,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:53:35,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:53:35,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:53:35,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:53:35,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:53:35,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:53:35,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:53:35,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:53:35,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:53:35,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:53:35,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:53:35,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:53:35,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:53:35,503 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:53:35,508 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:53:35,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:53:35,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:53:35,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:53:35,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:53:35,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:53:35,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:53:35,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:53:35,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:53:35,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:53:35,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:53:35,536 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:53:35,537 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:53:35,539 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:53:35,540 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:53:35,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:53:35,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:53:35,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:53:35,544 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:53:35,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:53:35,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:53:35,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:53:35,547 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 00:53:35,604 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:53:35,606 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:53:35,607 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:53:35,607 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:53:35,608 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:53:35,609 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:53:35,609 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:53:35,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:53:35,610 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:53:35,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:53:35,611 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:53:35,612 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:53:35,612 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:53:35,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:53:35,612 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:53:35,613 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:53:35,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:53:35,613 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:53:35,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:53:35,615 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:53:35,615 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 00:53:35,616 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:53:35,616 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:53:35,616 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:53:35,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:53:35,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:53:35,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:53:35,619 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 00:53:35,619 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:53:35,620 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:53:35,620 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:53:35,620 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:53:35,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:53:35,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:53:35,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:53:35,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:53:35,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:53:35,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:53:35,622 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:53:35,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:53:35,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:53:35,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:53:35,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:53:35,624 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_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50ec0e1b32f61b9ee697cf2c7598d178ee7b7b08e68108a0f594c4a6a80ab80c [2021-11-21 00:53:35,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:53:35,958 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:53:35,961 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:53:35,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:53:35,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:53:35,965 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i [2021-11-21 00:53:36,053 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/data/8d4b081c2/5a3e1f8f22ec459887a3e4a3b8ded66c/FLAG51fbd10a2 [2021-11-21 00:53:36,839 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:53:36,840 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i [2021-11-21 00:53:36,862 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/data/8d4b081c2/5a3e1f8f22ec459887a3e4a3b8ded66c/FLAG51fbd10a2 [2021-11-21 00:53:36,881 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/data/8d4b081c2/5a3e1f8f22ec459887a3e4a3b8ded66c [2021-11-21 00:53:36,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:53:36,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:53:36,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:53:36,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:53:36,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:53:36,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:53:36" (1/1) ... [2021-11-21 00:53:36,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d1e6cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:36, skipping insertion in model container [2021-11-21 00:53:36,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:53:36" (1/1) ... [2021-11-21 00:53:36,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:53:37,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:53:37,637 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_f8a15211-138b-4a06-9420-e409a000e83e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[33021,33034] [2021-11-21 00:53:37,997 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_f8a15211-138b-4a06-9420-e409a000e83e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[84583,84596] [2021-11-21 00:53:38,039 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:53:38,048 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:53:38,112 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_f8a15211-138b-4a06-9420-e409a000e83e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[33021,33034] [2021-11-21 00:53:38,368 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_f8a15211-138b-4a06-9420-e409a000e83e/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test9-2.i[84583,84596] [2021-11-21 00:53:38,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:53:38,434 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:53:38,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38 WrapperNode [2021-11-21 00:53:38,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:53:38,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:53:38,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:53:38,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:53:38,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,695 INFO L137 Inliner]: procedures = 177, calls = 781, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3027 [2021-11-21 00:53:38,695 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:53:38,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:53:38,697 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:53:38,697 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:53:38,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,923 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:53:38,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:53:38,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:53:38,970 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:53:38,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (1/1) ... [2021-11-21 00:53:38,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:53:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:39,055 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:53:39,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:53:39,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:53:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 00:53:39,120 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 00:53:39,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:53:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 00:53:39,121 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 00:53:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 00:53:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:53:39,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 00:53:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:53:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-21 00:53:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 00:53:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:53:39,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:53:39,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:53:39,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:53:39,414 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:53:39,416 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:53:42,051 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:53:42,727 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:53:42,727 INFO L301 CfgBuilder]: Removed 63 assume(true) statements. [2021-11-21 00:53:42,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:53:42 BoogieIcfgContainer [2021-11-21 00:53:42,736 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:53:42,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:53:42,739 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:53:42,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:53:42,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:53:36" (1/3) ... [2021-11-21 00:53:42,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674a0db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:53:42, skipping insertion in model container [2021-11-21 00:53:42,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:53:38" (2/3) ... [2021-11-21 00:53:42,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@674a0db2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:53:42, skipping insertion in model container [2021-11-21 00:53:42,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:53:42" (3/3) ... [2021-11-21 00:53:42,750 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_BER_test9-2.i [2021-11-21 00:53:42,763 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:53:42,763 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-11-21 00:53:42,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:53:42,858 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:53:42,859 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-11-21 00:53:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 00:53:42,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-21 00:53:42,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:42,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-21 00:53:42,931 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:53:42,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:42,937 INFO L85 PathProgramCache]: Analyzing trace with hash 144769903, now seen corresponding path program 1 times [2021-11-21 00:53:42,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:42,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516269119] [2021-11-21 00:53:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:42,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:43,068 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:43,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485698565] [2021-11-21 00:53:43,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:43,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:43,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:43,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:43,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 00:53:43,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:43,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 00:53:43,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:43,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 00:53:43,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-21 00:53:43,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-11-21 00:53:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:53:43,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:43,494 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:43,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516269119] [2021-11-21 00:53:43,495 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:43,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485698565] [2021-11-21 00:53:43,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485698565] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:43,496 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:43,496 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:53:43,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428908865] [2021-11-21 00:53:43,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:43,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:53:43,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:43,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:53:43,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:53:43,582 INFO L87 Difference]: Start difference. First operand has 1123 states, 609 states have (on average 1.9655172413793103) internal successors, (1197), 1117 states have internal predecessors, (1197), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:46,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:46,903 INFO L93 Difference]: Finished difference Result 3309 states and 6518 transitions. [2021-11-21 00:53:46,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:53:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-21 00:53:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:46,978 INFO L225 Difference]: With dead ends: 3309 [2021-11-21 00:53:46,978 INFO L226 Difference]: Without dead ends: 2167 [2021-11-21 00:53:46,992 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:53:46,997 INFO L933 BasicCegarLoop]: 2605 mSDtfsCounter, 1068 mSDsluCounter, 4215 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1568 SdHoareTripleChecker+Valid, 6799 SdHoareTripleChecker+Invalid, 627 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:46,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1568 Valid, 6799 Invalid, 627 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2021-11-21 00:53:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2167 states. [2021-11-21 00:53:47,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2167 to 1111. [2021-11-21 00:53:47,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.874581939799331) internal successors, (1121), 1105 states have internal predecessors, (1121), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 00:53:47,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2127 transitions. [2021-11-21 00:53:47,733 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2127 transitions. Word has length 4 [2021-11-21 00:53:47,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:47,734 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2127 transitions. [2021-11-21 00:53:47,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:47,735 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2127 transitions. [2021-11-21 00:53:47,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-21 00:53:47,737 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:47,737 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:53:47,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:47,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 00:53:47,953 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:53:47,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:47,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1404847448, now seen corresponding path program 1 times [2021-11-21 00:53:47,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:47,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348037625] [2021-11-21 00:53:47,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:47,955 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:48,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:53:48,074 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:48,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348037625] [2021-11-21 00:53:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348037625] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:48,075 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:48,075 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-21 00:53:48,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892510168] [2021-11-21 00:53:48,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:48,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:53:48,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:53:48,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:53:48,078 INFO L87 Difference]: Start difference. First operand 1111 states and 2127 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:50,819 INFO L93 Difference]: Finished difference Result 3200 states and 6229 transitions. [2021-11-21 00:53:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:53:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-21 00:53:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:50,845 INFO L225 Difference]: With dead ends: 3200 [2021-11-21 00:53:50,846 INFO L226 Difference]: Without dead ends: 2154 [2021-11-21 00:53:50,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:53:50,853 INFO L933 BasicCegarLoop]: 2598 mSDtfsCounter, 1051 mSDsluCounter, 4195 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1551 SdHoareTripleChecker+Valid, 6778 SdHoareTripleChecker+Invalid, 588 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:50,854 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1551 Valid, 6778 Invalid, 588 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-11-21 00:53:50,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2154 states. [2021-11-21 00:53:51,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2154 to 1111. [2021-11-21 00:53:51,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1111 states, 598 states have (on average 1.8729096989966556) internal successors, (1120), 1105 states have internal predecessors, (1120), 503 states have call successors, (503), 2 states have call predecessors, (503), 2 states have return successors, (503), 4 states have call predecessors, (503), 503 states have call successors, (503) [2021-11-21 00:53:51,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 2126 transitions. [2021-11-21 00:53:51,189 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 2126 transitions. Word has length 20 [2021-11-21 00:53:51,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:51,189 INFO L470 AbstractCegarLoop]: Abstraction has 1111 states and 2126 transitions. [2021-11-21 00:53:51,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:51,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 2126 transitions. [2021-11-21 00:53:51,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 00:53:51,191 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:51,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:53:51,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:53:51,192 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:53:51,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:51,193 INFO L85 PathProgramCache]: Analyzing trace with hash -980144550, now seen corresponding path program 1 times [2021-11-21 00:53:51,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:51,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671514171] [2021-11-21 00:53:51,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:51,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:51,215 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:51,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [867463993] [2021-11-21 00:53:51,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:51,216 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:51,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:51,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:51,262 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 00:53:51,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:51,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 00:53:51,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:51,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:53:51,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:51,675 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:51,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671514171] [2021-11-21 00:53:51,675 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:51,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [867463993] [2021-11-21 00:53:51,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [867463993] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:51,676 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:51,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:53:51,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687409305] [2021-11-21 00:53:51,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:51,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 00:53:51,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:51,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 00:53:51,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:53:51,679 INFO L87 Difference]: Start difference. First operand 1111 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:52,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:52,729 INFO L93 Difference]: Finished difference Result 3258 states and 6292 transitions. [2021-11-21 00:53:52,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 00:53:52,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 00:53:52,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:52,763 INFO L225 Difference]: With dead ends: 3258 [2021-11-21 00:53:52,764 INFO L226 Difference]: Without dead ends: 2152 [2021-11-21 00:53:52,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 00:53:52,778 INFO L933 BasicCegarLoop]: 2621 mSDtfsCounter, 1039 mSDsluCounter, 2102 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 4711 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:52,786 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1541 Valid, 4711 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 00:53:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2021-11-21 00:53:53,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 2148. [2021-11-21 00:53:53,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2148 states, 1135 states have (on average 1.905726872246696) internal successors, (2163), 2142 states have internal predecessors, (2163), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 2 states have return successors, (1003), 5 states have call predecessors, (1003), 1003 states have call successors, (1003) [2021-11-21 00:53:53,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2148 states to 2148 states and 4169 transitions. [2021-11-21 00:53:53,411 INFO L78 Accepts]: Start accepts. Automaton has 2148 states and 4169 transitions. Word has length 28 [2021-11-21 00:53:53,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:53,415 INFO L470 AbstractCegarLoop]: Abstraction has 2148 states and 4169 transitions. [2021-11-21 00:53:53,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:53:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand 2148 states and 4169 transitions. [2021-11-21 00:53:53,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-21 00:53:53,418 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:53,419 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:53:53,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:53,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:53,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:53:53,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:53,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1908377992, now seen corresponding path program 1 times [2021-11-21 00:53:53,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:53,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354474808] [2021-11-21 00:53:53,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:53,634 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:53,682 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:53,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1137758512] [2021-11-21 00:53:53,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:53,683 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:53,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:53,690 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:53,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 00:53:54,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:54,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:53:54,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:54,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:53:54,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 00:53:54,821 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:54,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354474808] [2021-11-21 00:53:54,821 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:54,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1137758512] [2021-11-21 00:53:54,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1137758512] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:53:54,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:53:54,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 00:53:54,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950547228] [2021-11-21 00:53:54,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:53:54,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 00:53:54,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:53:54,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 00:53:54,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 00:53:54,831 INFO L87 Difference]: Start difference. First operand 2148 states and 4169 transitions. Second operand has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:53:56,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:53:56,763 INFO L93 Difference]: Finished difference Result 4280 states and 8324 transitions. [2021-11-21 00:53:56,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:53:56,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 41 [2021-11-21 00:53:56,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:53:56,789 INFO L225 Difference]: With dead ends: 4280 [2021-11-21 00:53:56,789 INFO L226 Difference]: Without dead ends: 2150 [2021-11-21 00:53:56,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 00:53:56,799 INFO L933 BasicCegarLoop]: 2106 mSDtfsCounter, 1 mSDsluCounter, 4234 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-11-21 00:53:56,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 6314 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-11-21 00:53:56,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2150 states. [2021-11-21 00:53:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2150 to 2150. [2021-11-21 00:53:57,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2150 states, 1136 states have (on average 1.9058098591549295) internal successors, (2165), 2144 states have internal predecessors, (2165), 1003 states have call successors, (1003), 2 states have call predecessors, (1003), 3 states have return successors, (1004), 5 states have call predecessors, (1004), 1003 states have call successors, (1004) [2021-11-21 00:53:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2150 states to 2150 states and 4172 transitions. [2021-11-21 00:53:57,288 INFO L78 Accepts]: Start accepts. Automaton has 2150 states and 4172 transitions. Word has length 41 [2021-11-21 00:53:57,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:53:57,289 INFO L470 AbstractCegarLoop]: Abstraction has 2150 states and 4172 transitions. [2021-11-21 00:53:57,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.333333333333334) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 00:53:57,289 INFO L276 IsEmpty]: Start isEmpty. Operand 2150 states and 4172 transitions. [2021-11-21 00:53:57,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 00:53:57,293 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:53:57,293 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:53:57,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:53:57,509 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:57,509 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-11-21 00:53:57,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:53:57,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1893633940, now seen corresponding path program 1 times [2021-11-21 00:53:57,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:53:57,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396706885] [2021-11-21 00:53:57,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:57,510 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:53:57,554 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 00:53:57,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1745656307] [2021-11-21 00:53:57,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:53:57,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 00:53:57,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:53:57,562 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 00:53:57,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8a15211-138b-4a06-9420-e409a000e83e/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 00:53:58,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:53:58,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:53:58,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:53:58,134 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 00:53:58,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:53:58,311 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 00:53:58,311 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:53:58,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396706885] [2021-11-21 00:53:58,312 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 00:53:58,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1745656307] [2021-11-21 00:53:58,312 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1745656307] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 00:53:58,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1807613986] [2021-11-21 00:53:58,354 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 00:53:58,354 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 00:53:58,359 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 00:53:58,364 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 00:53:58,365 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 00:53:58,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,517 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-21 00:53:58,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2021-11-21 00:53:58,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:53:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2021-11-21 00:53:58,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 00:53:58,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:53:58,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:53:58,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,881 INFO L354 Elim1Store]: treesize reduction 28, result has 40.4 percent of original size [2021-11-21 00:53:58,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 38 [2021-11-21 00:53:58,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:58,953 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-21 00:53:58,953 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 00:53:59,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 00:53:59,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,073 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 00:53:59,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2021-11-21 00:53:59,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:53:59,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 59 [2021-11-21 00:53:59,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:53:59,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 00:54:01,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 75 [2021-11-21 00:54:01,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 74 [2021-11-21 00:54:01,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:54:01,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 00:54:01,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:54:01,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 00:54:01,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 94 treesize of output 96 [2021-11-21 00:54:01,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 14 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 00:54:01,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2021-11-21 00:54:01,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:01,904 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-11-21 00:54:01,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 17 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 75 treesize of output 77 [2021-11-21 00:54:01,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 110 treesize of output 115 [2021-11-21 00:54:02,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,136 INFO L354 Elim1Store]: treesize reduction 194, result has 22.4 percent of original size [2021-11-21 00:54:02,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 127 treesize of output 163 [2021-11-21 00:54:02,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:02,216 INFO L354 Elim1Store]: treesize reduction 120, result has 14.9 percent of original size [2021-11-21 00:54:02,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 145 treesize of output 156 [2021-11-21 00:54:02,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 00:54:02,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-21 00:54:02,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-21 00:54:03,027 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 00:54:03,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 85 treesize of output 88 [2021-11-21 00:54:03,060 INFO L354 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2021-11-21 00:54:03,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 91 [2021-11-21 00:54:03,089 INFO L354 Elim1Store]: treesize reduction 19, result has 36.7 percent of original size [2021-11-21 00:54:03,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 91 treesize of output 94 [2021-11-21 00:54:03,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:54:03,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 00:54:03,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 00:54:03,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:54:03,364 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 00:54:03,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 00:54:03,796 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 26 [2021-11-21 00:54:03,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:03,911 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 22 [2021-11-21 00:54:04,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:04,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2021-11-21 00:54:13,451 WARN L227 SmtUtils]: Spent 9.26s 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) [2021-11-21 00:54:13,452 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 00:54:13,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 2847 treesize of output 2324 [2021-11-21 00:54:13,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:24,924 WARN L227 SmtUtils]: Spent 11.42s 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) [2021-11-21 00:54:24,925 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 00:54:24,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 2948 treesize of output 2666 [2021-11-21 00:54:37,095 WARN L227 SmtUtils]: Spent 12.04s on a formula simplification. DAG size of input: 252 DAG size of output: 143 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 00:54:37,096 INFO L354 Elim1Store]: treesize reduction 2662, result has 30.3 percent of original size [2021-11-21 00:54:37,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 16 case distinctions, treesize of input 2852 treesize of output 2682 [2021-11-21 00:54:37,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:37,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:38,313 INFO L354 Elim1Store]: treesize reduction 126, result has 17.1 percent of original size [2021-11-21 00:54:38,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 25950 treesize of output 25964 [2021-11-21 00:54:38,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:38,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:38,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:39,568 INFO L354 Elim1Store]: treesize reduction 204, result has 13.2 percent of original size [2021-11-21 00:54:39,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 6 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 25949 treesize of output 25964 [2021-11-21 00:54:42,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:42,355 INFO L354 Elim1Store]: treesize reduction 28, result has 3.4 percent of original size [2021-11-21 00:54:42,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 30 [2021-11-21 00:54:42,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 00:54:42,871 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 00:54:42,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 53 treesize of output 63