./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/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 bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:49:03,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:49:03,411 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:49:03,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:49:03,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:49:03,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:49:03,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:49:03,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:49:03,470 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:49:03,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:49:03,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:49:03,482 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:49:03,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:49:03,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:49:03,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:49:03,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:49:03,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:49:03,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:49:03,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:49:03,509 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:49:03,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:49:03,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:49:03,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:49:03,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:49:03,528 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:49:03,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:49:03,529 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:49:03,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:49:03,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:49:03,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:49:03,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:49:03,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:49:03,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:49:03,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:49:03,541 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:49:03,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:49:03,542 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:49:03,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:49:03,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:49:03,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:49:03,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:49:03,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-11-21 01:49:03,603 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:49:03,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:49:03,604 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:49:03,604 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:49:03,612 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:49:03,613 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:49:03,613 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:49:03,613 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:49:03,613 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:49:03,614 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:49:03,615 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:49:03,615 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:49:03,615 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:49:03,615 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:49:03,616 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:49:03,616 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:49:03,616 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:49:03,616 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:49:03,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:49:03,617 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:49:03,618 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-21 01:49:03,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:49:03,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:49:03,618 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:49:03,618 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:49:03,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:49:03,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:49:03,621 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-11-21 01:49:03,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:49:03,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:49:03,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:49:03,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:49:03,622 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:49:03,622 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:49:03,623 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:49:03,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:49:03,623 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:49:03,623 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:49:03,624 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:49:03,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:49:03,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:49:03,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:49:03,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:49:03,625 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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bfb70cce6cd508003f6161c30aa2ac99ac8ddeb6209ddd86b65ca0c623c2fb1c [2021-11-21 01:49:03,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:49:03,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:49:03,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:49:03,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:49:03,949 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:49:03,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-21 01:49:04,056 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/data/daa6666a3/b6ba918ebb1b4752acfeea2797033f84/FLAGc7fc21df2 [2021-11-21 01:49:04,669 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:49:04,669 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i [2021-11-21 01:49:04,690 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/data/daa6666a3/b6ba918ebb1b4752acfeea2797033f84/FLAGc7fc21df2 [2021-11-21 01:49:04,934 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/data/daa6666a3/b6ba918ebb1b4752acfeea2797033f84 [2021-11-21 01:49:04,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:49:04,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:49:04,941 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:49:04,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:49:04,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:49:04,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:49:04" (1/1) ... [2021-11-21 01:49:04,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@879edb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:04, skipping insertion in model container [2021-11-21 01:49:04,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:49:04" (1/1) ... [2021-11-21 01:49:04,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:49:05,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:49:05,482 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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-21 01:49:05,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:49:05,627 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:49:05,676 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_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test1-2.i[33021,33034] [2021-11-21 01:49:05,753 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:49:05,808 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:49:05,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05 WrapperNode [2021-11-21 01:49:05,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:49:05,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:49:05,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:49:05,810 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:49:05,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,911 INFO L137 Inliner]: procedures = 177, calls = 237, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 782 [2021-11-21 01:49:05,911 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:49:05,912 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:49:05,912 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:49:05,912 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:49:05,921 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,933 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:05,991 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:06,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:06,008 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:06,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:49:06,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:49:06,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:49:06,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:49:06,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (1/1) ... [2021-11-21 01:49:06,026 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:49:06,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:06,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:49:06,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:49:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:49:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-21 01:49:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-21 01:49:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-21 01:49:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:49:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:49:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:49:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:49:06,269 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:49:06,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:49:07,285 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:49:07,707 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:49:07,707 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-21 01:49:07,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:49:07 BoogieIcfgContainer [2021-11-21 01:49:07,713 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:49:07,715 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:49:07,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:49:07,720 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:49:07,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:49:04" (1/3) ... [2021-11-21 01:49:07,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242960da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:49:07, skipping insertion in model container [2021-11-21 01:49:07,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:49:05" (2/3) ... [2021-11-21 01:49:07,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@242960da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:49:07, skipping insertion in model container [2021-11-21 01:49:07,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:49:07" (3/3) ... [2021-11-21 01:49:07,727 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_OAT_test1-2.i [2021-11-21 01:49:07,734 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:49:07,735 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-21 01:49:07,787 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:49:07,794 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 01:49:07,794 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-21 01:49:07,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:49:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-21 01:49:07,816 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:07,817 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-21 01:49:07,817 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:07,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:07,823 INFO L85 PathProgramCache]: Analyzing trace with hash 663178, now seen corresponding path program 1 times [2021-11-21 01:49:07,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:07,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351930412] [2021-11-21 01:49:07,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:07,834 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:07,935 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:07,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468799258] [2021-11-21 01:49:07,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:07,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:07,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:07,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:07,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-21 01:49:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:08,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:49:08,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:08,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:49:08,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:49:08,169 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:08,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351930412] [2021-11-21 01:49:08,170 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:08,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468799258] [2021-11-21 01:49:08,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468799258] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:08,171 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:08,171 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-21 01:49:08,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464894176] [2021-11-21 01:49:08,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:08,178 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:49:08,178 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:08,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:49:08,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:08,216 INFO L87 Difference]: Start difference. First operand has 103 states, 81 states have (on average 1.8024691358024691) internal successors, (146), 97 states have internal predecessors, (146), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:09,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:09,213 INFO L93 Difference]: Finished difference Result 258 states and 438 transitions. [2021-11-21 01:49:09,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:49:09,220 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 3 [2021-11-21 01:49:09,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:09,231 INFO L225 Difference]: With dead ends: 258 [2021-11-21 01:49:09,231 INFO L226 Difference]: Without dead ends: 141 [2021-11-21 01:49:09,235 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:09,239 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 54 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:09,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 231 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-11-21 01:49:09,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-11-21 01:49:09,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 89. [2021-11-21 01:49:09,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 69 states have (on average 1.318840579710145) internal successors, (91), 83 states have internal predecessors, (91), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 4 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-21 01:49:09,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 117 transitions. [2021-11-21 01:49:09,295 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 117 transitions. Word has length 3 [2021-11-21 01:49:09,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:09,295 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 117 transitions. [2021-11-21 01:49:09,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:09,296 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 117 transitions. [2021-11-21 01:49:09,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-11-21 01:49:09,298 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:09,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:09,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:49:09,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-11-21 01:49:09,528 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:09,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:09,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1363999608, now seen corresponding path program 1 times [2021-11-21 01:49:09,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:09,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975819610] [2021-11-21 01:49:09,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:09,530 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:09,554 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:09,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [863867545] [2021-11-21 01:49:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:09,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:09,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:09,556 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:09,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-21 01:49:09,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:09,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:49:09,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:49:09,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:49:09,916 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:09,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975819610] [2021-11-21 01:49:09,917 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:09,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [863867545] [2021-11-21 01:49:09,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [863867545] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:09,917 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:09,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:49:09,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884129385] [2021-11-21 01:49:09,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:09,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:49:09,920 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:09,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:49:09,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:49:09,921 INFO L87 Difference]: Start difference. First operand 89 states and 117 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:12,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:12,163 INFO L93 Difference]: Finished difference Result 141 states and 177 transitions. [2021-11-21 01:49:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 01:49:12,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 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 27 [2021-11-21 01:49:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:12,171 INFO L225 Difference]: With dead ends: 141 [2021-11-21 01:49:12,172 INFO L226 Difference]: Without dead ends: 140 [2021-11-21 01:49:12,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:12,174 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 32 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 313 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:12,175 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 313 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-21 01:49:12,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-11-21 01:49:12,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 138. [2021-11-21 01:49:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 115 states have (on average 1.2347826086956522) internal successors, (142), 129 states have internal predecessors, (142), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:49:12,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 174 transitions. [2021-11-21 01:49:12,195 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 174 transitions. Word has length 27 [2021-11-21 01:49:12,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:12,195 INFO L470 AbstractCegarLoop]: Abstraction has 138 states and 174 transitions. [2021-11-21 01:49:12,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:12,196 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 174 transitions. [2021-11-21 01:49:12,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:49:12,197 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:12,197 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:12,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:49:12,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:12,414 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:12,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:12,415 INFO L85 PathProgramCache]: Analyzing trace with hash 665685527, now seen corresponding path program 1 times [2021-11-21 01:49:12,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:12,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511953287] [2021-11-21 01:49:12,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:12,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:12,444 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:12,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2054433659] [2021-11-21 01:49:12,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:12,452 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:12,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:12,453 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:12,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-21 01:49:12,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:12,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-21 01:49:12,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:12,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:49:12,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:49:12,716 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:12,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511953287] [2021-11-21 01:49:12,717 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:12,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2054433659] [2021-11-21 01:49:12,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2054433659] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:12,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:12,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:49:12,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947769166] [2021-11-21 01:49:12,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:12,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:49:12,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:12,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:49:12,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:49:12,722 INFO L87 Difference]: Start difference. First operand 138 states and 174 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:13,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:13,751 INFO L93 Difference]: Finished difference Result 138 states and 174 transitions. [2021-11-21 01:49:13,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:49:13,763 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-21 01:49:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:13,767 INFO L225 Difference]: With dead ends: 138 [2021-11-21 01:49:13,767 INFO L226 Difference]: Without dead ends: 137 [2021-11-21 01:49:13,768 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:13,769 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 59 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:13,770 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 205 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-11-21 01:49:13,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-21 01:49:13,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-21 01:49:13,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 115 states have (on average 1.2260869565217392) internal successors, (141), 128 states have internal predecessors, (141), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:49:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 173 transitions. [2021-11-21 01:49:13,792 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 173 transitions. Word has length 28 [2021-11-21 01:49:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:13,793 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 173 transitions. [2021-11-21 01:49:13,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 173 transitions. [2021-11-21 01:49:13,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-21 01:49:13,794 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:13,794 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:13,821 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:49:14,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:14,007 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:14,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:14,008 INFO L85 PathProgramCache]: Analyzing trace with hash -226314427, now seen corresponding path program 1 times [2021-11-21 01:49:14,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:14,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100595126] [2021-11-21 01:49:14,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:14,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:14,049 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:14,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1997996929] [2021-11-21 01:49:14,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:14,052 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:14,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:14,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:14,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-21 01:49:14,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:14,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-21 01:49:14,228 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:49:14,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:49:14,348 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:14,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100595126] [2021-11-21 01:49:14,348 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:14,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1997996929] [2021-11-21 01:49:14,349 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1997996929] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:14,352 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:14,352 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:49:14,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133967952] [2021-11-21 01:49:14,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:14,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-21 01:49:14,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:14,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-21 01:49:14,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:14,356 INFO L87 Difference]: Start difference. First operand 137 states and 173 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:15,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:15,932 INFO L93 Difference]: Finished difference Result 246 states and 314 transitions. [2021-11-21 01:49:15,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-21 01:49:15,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 30 [2021-11-21 01:49:15,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:15,949 INFO L225 Difference]: With dead ends: 246 [2021-11-21 01:49:15,950 INFO L226 Difference]: Without dead ends: 135 [2021-11-21 01:49:15,951 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-21 01:49:15,953 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 11 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:15,954 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 190 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2021-11-21 01:49:15,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2021-11-21 01:49:15,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2021-11-21 01:49:15,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 113 states have (on average 1.2212389380530972) internal successors, (138), 126 states have internal predecessors, (138), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 7 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-21 01:49:15,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 170 transitions. [2021-11-21 01:49:15,970 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 170 transitions. Word has length 30 [2021-11-21 01:49:15,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:15,971 INFO L470 AbstractCegarLoop]: Abstraction has 135 states and 170 transitions. [2021-11-21 01:49:15,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:49:15,971 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 170 transitions. [2021-11-21 01:49:15,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-21 01:49:15,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:15,973 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 01:49:16,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:49:16,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:16,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:16,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:16,183 INFO L85 PathProgramCache]: Analyzing trace with hash -2000698168, now seen corresponding path program 1 times [2021-11-21 01:49:16,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:16,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761294783] [2021-11-21 01:49:16,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:16,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:16,204 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:16,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1053358053] [2021-11-21 01:49:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:16,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:16,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:16,206 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:16,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-21 01:49:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:16,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:49:16,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:16,654 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:49:16,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-21 01:49:16,654 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:16,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761294783] [2021-11-21 01:49:16,654 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:16,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053358053] [2021-11-21 01:49:16,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053358053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:49:16,655 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:49:16,655 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-21 01:49:16,655 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409409528] [2021-11-21 01:49:16,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:49:16,656 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-21 01:49:16,656 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:49:16,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-21 01:49:16,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-21 01:49:16,657 INFO L87 Difference]: Start difference. First operand 135 states and 170 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:49:17,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:49:17,957 INFO L93 Difference]: Finished difference Result 252 states and 326 transitions. [2021-11-21 01:49:17,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:49:17,962 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2021-11-21 01:49:17,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:49:17,963 INFO L225 Difference]: With dead ends: 252 [2021-11-21 01:49:17,963 INFO L226 Difference]: Without dead ends: 137 [2021-11-21 01:49:17,964 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-21 01:49:17,965 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 1 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-11-21 01:49:17,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 296 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-11-21 01:49:17,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-11-21 01:49:17,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-21 01:49:17,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 114 states have (on average 1.2280701754385965) internal successors, (140), 128 states have internal predecessors, (140), 16 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (18), 7 states have call predecessors, (18), 16 states have call successors, (18) [2021-11-21 01:49:17,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 174 transitions. [2021-11-21 01:49:17,982 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 174 transitions. Word has length 43 [2021-11-21 01:49:17,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:49:17,983 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 174 transitions. [2021-11-21 01:49:17,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-21 01:49:17,983 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 174 transitions. [2021-11-21 01:49:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-11-21 01:49:17,985 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:49:17,985 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:49:18,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:49:18,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:18,198 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-11-21 01:49:18,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:49:18,199 INFO L85 PathProgramCache]: Analyzing trace with hash 56861400, now seen corresponding path program 1 times [2021-11-21 01:49:18,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:49:18,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812686818] [2021-11-21 01:49:18,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:18,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:49:18,230 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-21 01:49:18,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [48793582] [2021-11-21 01:49:18,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:49:18,231 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-21 01:49:18,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:49:18,232 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-21 01:49:18,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_29fd4753-48c8-4d53-8348-3cff3c0e1ea7/bin/utaipan-TEXQjIfE4P/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-21 01:49:18,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:49:18,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:49:18,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:49:18,781 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:49:18,782 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:49:18,983 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:49:18,983 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:49:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812686818] [2021-11-21 01:49:18,984 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-11-21 01:49:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48793582] [2021-11-21 01:49:18,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48793582] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:49:18,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [646713972] [2021-11-21 01:49:19,002 INFO L159 IcfgInterpreter]: Started Sifa with 39 locations of interest [2021-11-21 01:49:19,002 INFO L166 IcfgInterpreter]: Building call graph [2021-11-21 01:49:19,011 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-21 01:49:19,017 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-21 01:49:19,018 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-21 01:49:19,209 INFO L354 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2021-11-21 01:49:19,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 27 treesize of output 41 [2021-11-21 01:49:19,250 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:49:19,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2021-11-21 01:49:19,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-21 01:49:19,304 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 01:49:19,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:49:19,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:19,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:19,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2021-11-21 01:49:19,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2021-11-21 01:49:20,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:49:20,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 67 [2021-11-21 01:49:20,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,760 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 0 case distinctions, treesize of input 55 treesize of output 66 [2021-11-21 01:49:20,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2021-11-21 01:49:20,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:49:20,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 89 treesize of output 88 [2021-11-21 01:49:20,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:20,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:49:21,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,040 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2021-11-21 01:49:21,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,147 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 100 treesize of output 105 [2021-11-21 01:49:21,194 INFO L354 Elim1Store]: treesize reduction 94, result has 14.5 percent of original size [2021-11-21 01:49:21,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 117 treesize of output 125 [2021-11-21 01:49:21,259 INFO L354 Elim1Store]: treesize reduction 184, result has 10.2 percent of original size [2021-11-21 01:49:21,260 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 11 case distinctions, treesize of input 116 treesize of output 119 [2021-11-21 01:49:21,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,382 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 01:49:21,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:21,438 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 69 [2021-11-21 01:49:21,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:49:21,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:49:21,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:49:22,010 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:49:22,011 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 98 treesize of output 97 [2021-11-21 01:49:22,060 INFO L354 Elim1Store]: treesize reduction 34, result has 22.7 percent of original size [2021-11-21 01:49:22,060 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 94 treesize of output 93 [2021-11-21 01:49:22,087 INFO L354 Elim1Store]: treesize reduction 32, result has 23.8 percent of original size [2021-11-21 01:49:22,088 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 90 treesize of output 89 [2021-11-21 01:49:22,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:49:22,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2021-11-21 01:49:22,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2021-11-21 01:49:22,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:49:22,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,337 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 01:49:22,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,370 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,373 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 01:49:22,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2021-11-21 01:49:22,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,706 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 01:49:22,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:22,740 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 01:49:30,087 WARN L227 SmtUtils]: Spent 7.22s 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 01:49:30,088 INFO L354 Elim1Store]: treesize reduction 348, result has 15.7 percent of original size [2021-11-21 01:49:30,088 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 2837 treesize of output 2314 [2021-11-21 01:49:30,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:40,692 WARN L227 SmtUtils]: Spent 10.52s 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 01:49:40,693 INFO L354 Elim1Store]: treesize reduction 262, result has 32.6 percent of original size [2021-11-21 01:49:40,694 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 2938 treesize of output 2656 [2021-11-21 01:49:52,661 WARN L227 SmtUtils]: Spent 11.86s on a formula simplification. DAG size of input: 251 DAG size of output: 142 (called from [L 351] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2021-11-21 01:49:52,663 INFO L354 Elim1Store]: treesize reduction 2750, result has 29.6 percent of original size [2021-11-21 01:49:52,664 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 2906 treesize of output 2676 [2021-11-21 01:49:54,337 INFO L354 Elim1Store]: treesize reduction 150, result has 21.9 percent of original size [2021-11-21 01:49:54,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 17 case distinctions, treesize of input 25944 treesize of output 25972 [2021-11-21 01:49:55,069 INFO L354 Elim1Store]: treesize reduction 96, result has 17.9 percent of original size [2021-11-21 01:49:55,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 25954 treesize of output 25965 [2021-11-21 01:49:57,669 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:49:58,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:58,149 INFO L354 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2021-11-21 01:49:58,150 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 32 [2021-11-21 01:49:58,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:58,647 INFO L354 Elim1Store]: treesize reduction 15, result has 48.3 percent of original size [2021-11-21 01:49:58,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 50 treesize of output 46 [2021-11-21 01:49:59,182 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:49:59,382 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:49:59,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:59,414 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:49:59,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:59,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:49:59,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 1188 treesize of output 824 [2021-11-21 01:50:00,028 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:00,201 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:00,370 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:00,665 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:00,801 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:00,960 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:01,301 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:01,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,314 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:01,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,325 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:01,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:01,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1209 treesize of output 827 [2021-11-21 01:50:01,603 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:02,114 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:02,206 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:02,458 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:02,572 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:02,730 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:03,144 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:03,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:03,155 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:03,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:03,173 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:03,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:03,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:03,221 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:03,316 INFO L354 Elim1Store]: treesize reduction 6, result has 88.5 percent of original size [2021-11-21 01:50:03,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 1271 treesize of output 867 [2021-11-21 01:50:03,860 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:04,413 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:04,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,435 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:04,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,465 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:04,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:04,537 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-21 01:50:04,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1271 treesize of output 821 [2021-11-21 01:50:04,979 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:05,463 INFO L244 Elim1Store]: Index analysis took 204 ms [2021-11-21 01:50:07,287 INFO L354 Elim1Store]: treesize reduction 917, result has 50.8 percent of original size [2021-11-21 01:50:07,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 1286 treesize of output 1777 [2021-11-21 01:50:10,239 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:10,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,258 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:10,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,284 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:10,363 INFO L244 Elim1Store]: Index analysis took 124 ms [2021-11-21 01:50:10,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1271 treesize of output 821 [2021-11-21 01:50:11,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:12,191 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:12,543 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:12,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,571 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:12,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,602 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:12,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:12,695 INFO L244 Elim1Store]: Index analysis took 152 ms [2021-11-21 01:50:12,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 1265 treesize of output 827 [2021-11-21 01:50:12,894 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:13,140 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:13,260 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:13,626 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:14,029 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:14,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:14,047 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:14,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:14,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:14,616 INFO L354 Elim1Store]: treesize reduction 793, result has 31.3 percent of original size [2021-11-21 01:50:14,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 1265 treesize of output 1189 [2021-11-21 01:50:15,110 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:15,395 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:15,553 WARN L234 Elim1Store]: Array PQE input equivalent to false [2021-11-21 01:50:17,921 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-11-21 01:50:17,921 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 1573 treesize of output 1581 [2021-11-21 01:50:18,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:18,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:18,860 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:18,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 16 [2021-11-21 01:50:19,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:19,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:19,771 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-21 01:50:19,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 75 treesize of output 73 [2021-11-21 01:50:20,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:20,385 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:20,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 39 [2021-11-21 01:50:25,133 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:25,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,142 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,154 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-21 01:50:25,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,183 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-21 01:50:25,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 4858 treesize of output 3290 [2021-11-21 01:50:29,309 INFO L190 IndexEqualityManager]: detected not equals via solver