./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 15:05:20,336 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:05:20,338 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:05:20,352 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:05:20,352 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:05:20,353 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:05:20,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:05:20,355 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:05:20,356 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:05:20,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:05:20,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:05:20,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:05:20,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:05:20,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:05:20,359 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:05:20,360 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:05:20,360 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:05:20,361 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:05:20,362 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:05:20,363 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:05:20,364 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:05:20,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:05:20,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:05:20,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:05:20,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:05:20,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:05:20,369 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:05:20,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:05:20,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:05:20,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:05:20,371 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:05:20,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:05:20,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:05:20,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:05:20,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:05:20,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:05:20,373 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:05:20,373 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:05:20,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:05:20,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:05:20,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:05:20,375 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-12-14 15:05:20,390 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:05:20,391 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:05:20,391 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:05:20,391 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:05:20,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:05:20,392 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:05:20,392 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:05:20,393 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:05:20,393 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:05:20,393 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:05:20,393 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:05:20,393 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:05:20,394 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:05:20,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:05:20,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:05:20,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:20,396 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:05:20,396 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3012c2825f53c0db53d950c12df6540de859b34b2bef033c36a98846352dedd3 [2022-12-14 15:05:20,565 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:05:20,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:05:20,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:05:20,585 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:05:20,586 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:05:20,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2022-12-14 15:05:23,222 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:05:23,413 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:05:23,413 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i [2022-12-14 15:05:23,424 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/data/064a1a5d3/bafb7bd3b11e4855b00cd11b09a46d73/FLAGd71fa3046 [2022-12-14 15:05:23,434 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/data/064a1a5d3/bafb7bd3b11e4855b00cd11b09a46d73 [2022-12-14 15:05:23,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:05:23,437 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:05:23,438 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:23,438 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:05:23,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:05:23,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:23" (1/1) ... [2022-12-14 15:05:23,443 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392abe2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:23, skipping insertion in model container [2022-12-14 15:05:23,443 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:05:23" (1/1) ... [2022-12-14 15:05:23,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:05:23,484 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:05:23,852 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2022-12-14 15:05:23,861 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2022-12-14 15:05:23,862 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:05:23,925 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2022-12-14 15:05:23,925 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2022-12-14 15:05:23,930 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:23,938 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:05:23,963 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44118,44131] [2022-12-14 15:05:23,964 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[44660,44673] [2022-12-14 15:05:23,965 WARN L623 FunctionHandler]: Unknown extern function memcmp [2022-12-14 15:05:24,010 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56247,56260] [2022-12-14 15:05:24,010 WARN L237 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_1d323ce7-a661-475d-a337-6d29c4682fcd/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test6-1.i[56368,56381] [2022-12-14 15:05:24,013 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:05:24,079 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:05:24,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24 WrapperNode [2022-12-14 15:05:24,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:05:24,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:24,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:05:24,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:05:24,088 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,115 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,150 INFO L138 Inliner]: procedures = 282, calls = 294, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 1036 [2022-12-14 15:05:24,151 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:05:24,151 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:05:24,151 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:05:24,152 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:05:24,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,165 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,195 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,205 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,209 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:05:24,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:05:24,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:05:24,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:05:24,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (1/1) ... [2022-12-14 15:05:24,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:05:24,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:24,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:05:24,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:05:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure alt_bzero [2022-12-14 15:05:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_bzero [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-12-14 15:05:24,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 15:05:24,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure alt_malloc [2022-12-14 15:05:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_malloc [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure alt_free [2022-12-14 15:05:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure alt_free [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:05:24,272 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:05:24,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:05:24,432 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:05:24,434 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:05:25,367 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:05:25,654 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:05:25,654 INFO L300 CfgBuilder]: Removed 63 assume(true) statements. [2022-12-14 15:05:25,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:25 BoogieIcfgContainer [2022-12-14 15:05:25,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:05:25,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:05:25,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:05:25,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:05:25,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:05:23" (1/3) ... [2022-12-14 15:05:25,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fe59b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:25, skipping insertion in model container [2022-12-14 15:05:25,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:05:24" (2/3) ... [2022-12-14 15:05:25,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30fe59b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:05:25, skipping insertion in model container [2022-12-14 15:05:25,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:05:25" (3/3) ... [2022-12-14 15:05:25,666 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test6-1.i [2022-12-14 15:05:25,685 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:05:25,686 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-14 15:05:25,729 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:05:25,734 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@16301854, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:05:25,734 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-14 15:05:25,738 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2022-12-14 15:05:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 15:05:25,745 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:25,746 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:25,747 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:25,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:25,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1226502113, now seen corresponding path program 1 times [2022-12-14 15:05:25,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:25,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615472544] [2022-12-14 15:05:25,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:25,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:25,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:25,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:25,891 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:25,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615472544] [2022-12-14 15:05:25,892 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615472544] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:25,892 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:25,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:05:25,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977870333] [2022-12-14 15:05:25,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:25,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 15:05:25,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:25,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 15:05:25,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:05:25,922 INFO L87 Difference]: Start difference. First operand has 142 states, 120 states have (on average 1.7166666666666666) internal successors, (206), 124 states have internal predecessors, (206), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:26,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:26,271 INFO L93 Difference]: Finished difference Result 281 states and 474 transitions. [2022-12-14 15:05:26,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 15:05:26,275 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-12-14 15:05:26,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:26,281 INFO L225 Difference]: With dead ends: 281 [2022-12-14 15:05:26,281 INFO L226 Difference]: Without dead ends: 138 [2022-12-14 15:05:26,284 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 15:05:26,286 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:26,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 145 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-12-14 15:05:26,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2022-12-14 15:05:26,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 138. [2022-12-14 15:05:26,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 117 states have (on average 1.188034188034188) internal successors, (139), 122 states have internal predecessors, (139), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 15:05:26,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 164 transitions. [2022-12-14 15:05:26,318 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 164 transitions. Word has length 7 [2022-12-14 15:05:26,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:26,319 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 164 transitions. [2022-12-14 15:05:26,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:26,319 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 164 transitions. [2022-12-14 15:05:26,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 15:05:26,319 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:26,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:26,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:05:26,320 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:26,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:26,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1897806726, now seen corresponding path program 1 times [2022-12-14 15:05:26,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:26,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081207247] [2022-12-14 15:05:26,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:26,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:26,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:26,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:26,426 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:26,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081207247] [2022-12-14 15:05:26,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081207247] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:26,426 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:26,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 15:05:26,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075044960] [2022-12-14 15:05:26,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:26,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:05:26,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:26,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:05:26,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:05:26,428 INFO L87 Difference]: Start difference. First operand 138 states and 164 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:27,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:27,821 INFO L93 Difference]: Finished difference Result 276 states and 329 transitions. [2022-12-14 15:05:27,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:05:27,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2022-12-14 15:05:27,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:27,825 INFO L225 Difference]: With dead ends: 276 [2022-12-14 15:05:27,825 INFO L226 Difference]: Without dead ends: 203 [2022-12-14 15:05:27,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:05:27,827 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 66 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:27,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 385 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-14 15:05:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-12-14 15:05:27,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 140. [2022-12-14 15:05:27,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 119 states have (on average 1.184873949579832) internal successors, (141), 124 states have internal predecessors, (141), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-12-14 15:05:27,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 166 transitions. [2022-12-14 15:05:27,842 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 166 transitions. Word has length 9 [2022-12-14 15:05:27,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:27,843 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 166 transitions. [2022-12-14 15:05:27,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:27,843 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 166 transitions. [2022-12-14 15:05:27,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-14 15:05:27,844 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:27,844 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:27,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-14 15:05:27,844 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:27,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:27,845 INFO L85 PathProgramCache]: Analyzing trace with hash 590989464, now seen corresponding path program 1 times [2022-12-14 15:05:27,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:27,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531983570] [2022-12-14 15:05:27,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:27,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:27,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:27,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166633676] [2022-12-14 15:05:27,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:27,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:27,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:27,888 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:27,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 15:05:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:32,785 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-14 15:05:32,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:32,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:32,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:05:32,832 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:32,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531983570] [2022-12-14 15:05:32,832 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:32,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166633676] [2022-12-14 15:05:32,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166633676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:32,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:32,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-12-14 15:05:32,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432421639] [2022-12-14 15:05:32,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:32,833 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:05:32,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:32,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:05:32,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:05:32,834 INFO L87 Difference]: Start difference. First operand 140 states and 166 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:36,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:36,332 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2022-12-14 15:05:36,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:05:36,332 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-14 15:05:36,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:36,333 INFO L225 Difference]: With dead ends: 151 [2022-12-14 15:05:36,333 INFO L226 Difference]: Without dead ends: 149 [2022-12-14 15:05:36,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:05:36,334 INFO L413 NwaCegarLoop]: 123 mSDtfsCounter, 125 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:36,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 631 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 15:05:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-12-14 15:05:36,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2022-12-14 15:05:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 125 states have (on average 1.184) internal successors, (148), 131 states have internal predecessors, (148), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 15:05:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 175 transitions. [2022-12-14 15:05:36,341 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 175 transitions. Word has length 20 [2022-12-14 15:05:36,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:36,341 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 175 transitions. [2022-12-14 15:05:36,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 175 transitions. [2022-12-14 15:05:36,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-12-14 15:05:36,342 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:36,342 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:36,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 15:05:36,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:36,544 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:36,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:36,544 INFO L85 PathProgramCache]: Analyzing trace with hash 518864303, now seen corresponding path program 1 times [2022-12-14 15:05:36,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:36,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048672498] [2022-12-14 15:05:36,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:36,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:36,654 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:36,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [893178326] [2022-12-14 15:05:36,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:36,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:36,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:36,656 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:36,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 15:05:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:37,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:05:37,140 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:37,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:37,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:05:37,179 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:37,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048672498] [2022-12-14 15:05:37,180 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:37,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [893178326] [2022-12-14 15:05:37,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [893178326] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:37,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:37,180 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 15:05:37,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080936380] [2022-12-14 15:05:37,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:37,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 15:05:37,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:37,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 15:05:37,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:05:37,181 INFO L87 Difference]: Start difference. First operand 149 states and 175 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:37,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:37,722 INFO L93 Difference]: Finished difference Result 352 states and 415 transitions. [2022-12-14 15:05:37,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 15:05:37,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-12-14 15:05:37,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:37,725 INFO L225 Difference]: With dead ends: 352 [2022-12-14 15:05:37,726 INFO L226 Difference]: Without dead ends: 206 [2022-12-14 15:05:37,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 15:05:37,728 INFO L413 NwaCegarLoop]: 162 mSDtfsCounter, 52 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 278 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:37,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 278 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-14 15:05:37,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-12-14 15:05:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 192. [2022-12-14 15:05:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 168 states have (on average 1.1726190476190477) internal successors, (197), 174 states have internal predecessors, (197), 14 states have call successors, (14), 6 states have call predecessors, (14), 6 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2022-12-14 15:05:37,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 224 transitions. [2022-12-14 15:05:37,738 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 224 transitions. Word has length 28 [2022-12-14 15:05:37,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:37,739 INFO L495 AbstractCegarLoop]: Abstraction has 192 states and 224 transitions. [2022-12-14 15:05:37,739 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-14 15:05:37,739 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 224 transitions. [2022-12-14 15:05:37,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-12-14 15:05:37,739 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:37,739 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:37,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 15:05:37,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:37,941 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:37,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:37,942 INFO L85 PathProgramCache]: Analyzing trace with hash 462120206, now seen corresponding path program 1 times [2022-12-14 15:05:37,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:37,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849631899] [2022-12-14 15:05:37,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:37,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:37,976 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:37,977 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [249875018] [2022-12-14 15:05:37,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:37,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:37,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:37,978 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:37,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-14 15:05:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:38,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-14 15:05:38,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:38,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:05:38,321 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 15:05:38,321 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:38,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849631899] [2022-12-14 15:05:38,322 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:38,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249875018] [2022-12-14 15:05:38,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249875018] provided 1 perfect and 1 imperfect interpolant sequences [2022-12-14 15:05:38,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-14 15:05:38,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 9 [2022-12-14 15:05:38,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509385175] [2022-12-14 15:05:38,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:38,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-14 15:05:38,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:38,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-14 15:05:38,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:05:38,324 INFO L87 Difference]: Start difference. First operand 192 states and 224 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:05:39,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:39,330 INFO L93 Difference]: Finished difference Result 710 states and 839 transitions. [2022-12-14 15:05:39,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-14 15:05:39,331 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 32 [2022-12-14 15:05:39,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:39,335 INFO L225 Difference]: With dead ends: 710 [2022-12-14 15:05:39,335 INFO L226 Difference]: Without dead ends: 534 [2022-12-14 15:05:39,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 51 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-12-14 15:05:39,336 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 720 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 479 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:39,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 479 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-12-14 15:05:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2022-12-14 15:05:39,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 312. [2022-12-14 15:05:39,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-12-14 15:05:39,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 365 transitions. [2022-12-14 15:05:39,352 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 365 transitions. Word has length 32 [2022-12-14 15:05:39,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:39,352 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 365 transitions. [2022-12-14 15:05:39,352 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 15:05:39,352 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 365 transitions. [2022-12-14 15:05:39,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-12-14 15:05:39,353 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:39,353 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:39,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-14 15:05:39,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:39,555 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:39,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:39,556 INFO L85 PathProgramCache]: Analyzing trace with hash -939607496, now seen corresponding path program 1 times [2022-12-14 15:05:39,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:39,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614110590] [2022-12-14 15:05:39,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:39,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:39,623 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:39,623 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [818827783] [2022-12-14 15:05:39,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:39,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:39,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-14 15:05:39,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:39,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 9 conjunts are in the unsatisfiable core [2022-12-14 15:05:39,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:39,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-14 15:05:39,966 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:05:39,978 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:39,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614110590] [2022-12-14 15:05:39,978 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:39,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [818827783] [2022-12-14 15:05:39,979 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [818827783] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:39,979 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:39,979 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-14 15:05:39,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992465830] [2022-12-14 15:05:39,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:39,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-14 15:05:39,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:39,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-14 15:05:39,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-14 15:05:39,980 INFO L87 Difference]: Start difference. First operand 312 states and 365 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:05:41,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:05:43,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:43,503 INFO L93 Difference]: Finished difference Result 592 states and 694 transitions. [2022-12-14 15:05:43,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-14 15:05:43,505 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 57 [2022-12-14 15:05:43,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:43,506 INFO L225 Difference]: With dead ends: 592 [2022-12-14 15:05:43,506 INFO L226 Difference]: Without dead ends: 312 [2022-12-14 15:05:43,507 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-12-14 15:05:43,507 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 15 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:43,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 588 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-12-14 15:05:43,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-12-14 15:05:43,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2022-12-14 15:05:43,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 283 states have (on average 1.176678445229682) internal successors, (333), 289 states have internal predecessors, (333), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 15:05:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 364 transitions. [2022-12-14 15:05:43,520 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 364 transitions. Word has length 57 [2022-12-14 15:05:43,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:43,520 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 364 transitions. [2022-12-14 15:05:43,520 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2022-12-14 15:05:43,520 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 364 transitions. [2022-12-14 15:05:43,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-12-14 15:05:43,521 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:43,521 INFO L195 NwaCegarLoop]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:43,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-14 15:05:43,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:43,723 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:43,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:43,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1766052133, now seen corresponding path program 1 times [2022-12-14 15:05:43,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:43,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459485449] [2022-12-14 15:05:43,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:43,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:43,790 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:43,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378282537] [2022-12-14 15:05:43,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:43,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:43,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:43,791 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:43,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-14 15:05:44,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:44,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-14 15:05:44,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:44,145 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-12-14 15:05:44,154 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-12-14 15:05:44,159 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:05:44,159 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:05:44,159 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:44,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459485449] [2022-12-14 15:05:44,160 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:44,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378282537] [2022-12-14 15:05:44,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378282537] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:44,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:44,160 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-14 15:05:44,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708042476] [2022-12-14 15:05:44,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:44,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-14 15:05:44,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:44,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-14 15:05:44,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-14 15:05:44,161 INFO L87 Difference]: Start difference. First operand 312 states and 364 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 15:05:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:46,035 INFO L93 Difference]: Finished difference Result 415 states and 494 transitions. [2022-12-14 15:05:46,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-14 15:05:46,037 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 62 [2022-12-14 15:05:46,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:46,039 INFO L225 Difference]: With dead ends: 415 [2022-12-14 15:05:46,039 INFO L226 Difference]: Without dead ends: 402 [2022-12-14 15:05:46,039 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-14 15:05:46,039 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 49 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:46,040 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 383 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-12-14 15:05:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2022-12-14 15:05:46,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 316. [2022-12-14 15:05:46,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 287 states have (on average 1.1742160278745644) internal successors, (337), 293 states have internal predecessors, (337), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (15), 13 states have call predecessors, (15), 15 states have call successors, (15) [2022-12-14 15:05:46,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 368 transitions. [2022-12-14 15:05:46,052 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 368 transitions. Word has length 62 [2022-12-14 15:05:46,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:46,052 INFO L495 AbstractCegarLoop]: Abstraction has 316 states and 368 transitions. [2022-12-14 15:05:46,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 1 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2022-12-14 15:05:46,052 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 368 transitions. [2022-12-14 15:05:46,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-12-14 15:05:46,053 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:46,053 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:46,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-14 15:05:46,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:46,255 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:46,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:46,257 INFO L85 PathProgramCache]: Analyzing trace with hash -2016845374, now seen corresponding path program 1 times [2022-12-14 15:05:46,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:46,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435745197] [2022-12-14 15:05:46,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:46,337 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:46,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [399892735] [2022-12-14 15:05:46,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:46,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:46,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:46,338 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:46,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-14 15:05:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:47,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 15:05:47,434 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-12-14 15:05:47,480 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 15:05:47,480 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435745197] [2022-12-14 15:05:47,480 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:47,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399892735] [2022-12-14 15:05:47,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399892735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 15:05:47,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 15:05:47,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-12-14 15:05:47,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391919916] [2022-12-14 15:05:47,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 15:05:47,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-14 15:05:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 15:05:47,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-14 15:05:47,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-12-14 15:05:47,481 INFO L87 Difference]: Start difference. First operand 316 states and 368 transitions. Second operand has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 15:05:50,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-12-14 15:05:51,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 15:05:51,898 INFO L93 Difference]: Finished difference Result 604 states and 709 transitions. [2022-12-14 15:05:51,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-12-14 15:05:51,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 69 [2022-12-14 15:05:51,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 15:05:51,902 INFO L225 Difference]: With dead ends: 604 [2022-12-14 15:05:51,902 INFO L226 Difference]: Without dead ends: 319 [2022-12-14 15:05:51,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-12-14 15:05:51,903 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 14 mSDsluCounter, 760 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-12-14 15:05:51,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 892 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-12-14 15:05:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2022-12-14 15:05:51,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2022-12-14 15:05:51,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 289 states have (on average 1.1764705882352942) internal successors, (340), 296 states have internal predecessors, (340), 16 states have call successors, (16), 9 states have call predecessors, (16), 10 states have return successors, (16), 13 states have call predecessors, (16), 15 states have call successors, (16) [2022-12-14 15:05:51,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 372 transitions. [2022-12-14 15:05:51,916 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 372 transitions. Word has length 69 [2022-12-14 15:05:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 15:05:51,916 INFO L495 AbstractCegarLoop]: Abstraction has 319 states and 372 transitions. [2022-12-14 15:05:51,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 7.0) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (8), 2 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2022-12-14 15:05:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 372 transitions. [2022-12-14 15:05:51,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-12-14 15:05:51,917 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:05:51,917 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:05:51,927 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-14 15:05:52,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:52,118 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION === [alt_freeErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-12-14 15:05:52,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:05:52,119 INFO L85 PathProgramCache]: Analyzing trace with hash -795138762, now seen corresponding path program 1 times [2022-12-14 15:05:52,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:05:52,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719588447] [2022-12-14 15:05:52,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:52,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:05:52,194 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 15:05:52,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [655427653] [2022-12-14 15:05:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:05:52,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 15:05:52,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:05:52,195 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 15:05:52,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1d323ce7-a661-475d-a337-6d29c4682fcd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-14 15:05:52,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 15:05:52,881 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-14 15:05:52,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 15:05:52,932 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-12-14 15:05:52,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-14 15:05:53,041 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-12-14 15:05:53,041 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 15:05:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719588447] [2022-12-14 15:05:53,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 15:05:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655427653] [2022-12-14 15:05:53,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655427653] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-14 15:05:53,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [397657747] [2022-12-14 15:05:53,058 INFO L159 IcfgInterpreter]: Started Sifa with 56 locations of interest [2022-12-14 15:05:53,058 INFO L166 IcfgInterpreter]: Building call graph [2022-12-14 15:05:53,062 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-12-14 15:05:53,065 INFO L176 IcfgInterpreter]: Starting interpretation [2022-12-14 15:05:53,066 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-12-14 15:05:53,133 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,157 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-12-14 15:05:53,157 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-12-14 15:05:53,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,169 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 30 [2022-12-14 15:05:53,175 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 15:05:53,183 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:05:53,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,191 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 30 [2022-12-14 15:05:53,200 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-12-14 15:05:53,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,265 INFO L321 Elim1Store]: treesize reduction 54, result has 34.1 percent of original size [2022-12-14 15:05:53,266 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 61 [2022-12-14 15:05:53,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,285 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:05:53,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 12 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 40 [2022-12-14 15:05:53,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,313 INFO L350 Elim1Store]: Elim1 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 58 treesize of output 56 [2022-12-14 15:05:53,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,324 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:05:53,327 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 31 [2022-12-14 15:05:53,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,348 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-12-14 15:05:53,789 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:05:53,806 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-12-14 15:05:53,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,832 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897015 treesize of output 8253105 [2022-12-14 15:05:53,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:05:53,876 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 8253077 treesize of output 5376270 [2022-12-14 15:05:53,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,900 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897013 treesize of output 8253101 [2022-12-14 15:05:53,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:53,946 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 21 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 8253073 treesize of output 5376282 [2022-12-14 15:05:54,016 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:05:54,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,038 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,041 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897028 treesize of output 8253114 [2022-12-14 15:05:54,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,096 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:05:54,098 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253086 treesize of output 5376285 [2022-12-14 15:05:54,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,124 INFO L350 Elim1Store]: Elim1 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 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897028 treesize of output 8253114 [2022-12-14 15:05:54,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-12-14 15:05:54,167 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 28 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8664062 treesize of output 6198237 [2022-12-14 15:05:54,204 INFO L350 Elim1Store]: Elim1 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 [2022-12-14 15:05:54,298 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:05:54,300 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:05:54,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 1 [2022-12-14 15:05:54,325 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-12-14 15:05:54,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-12-14 15:05:54,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,393 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-12-14 15:05:54,406 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-12-14 15:05:54,418 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-12-14 15:05:54,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,440 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 8253083 [2022-12-14 15:05:54,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,470 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253064 treesize of output 5787194 [2022-12-14 15:05:54,485 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5787179 treesize of output 5376201 [2022-12-14 15:05:54,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,507 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-12-14 15:05:54,755 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-12-14 15:05:54,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,791 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 8 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 8253083 [2022-12-14 15:05:54,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,821 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 8253064 treesize of output 5787194 [2022-12-14 15:05:54,837 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5787179 treesize of output 5376201 [2022-12-14 15:05:54,858 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-12-14 15:05:54,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,873 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 19 [2022-12-14 15:05:54,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-12-14 15:05:54,889 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 12 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 18 [2022-12-14 15:05:54,967 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-12-14 15:05:54,974 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:05:54,980 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-12-14 15:05:55,023 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:05:55,028 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:05:55,032 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:05:55,050 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-12-14 15:05:55,057 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 106 [2022-12-14 15:05:55,064 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 108 [2022-12-14 15:05:55,084 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-12-14 15:05:55,088 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:05:55,093 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-12-14 15:05:55,108 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 15:05:55,117 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-12-14 15:05:55,140 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2022-12-14 15:05:55,148 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 8 [2022-12-14 15:05:56,705 INFO L321 Elim1Store]: treesize reduction 340, result has 16.0 percent of original size [2022-12-14 15:05:56,706 INFO L350 Elim1Store]: Elim1 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 1318 treesize of output 957 [2022-12-14 15:05:59,968 INFO L321 Elim1Store]: treesize reduction 266, result has 31.6 percent of original size [2022-12-14 15:05:59,968 INFO L350 Elim1Store]: Elim1 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 1293 treesize of output 1170 [2022-12-14 15:06:02,391 INFO L321 Elim1Store]: treesize reduction 1012, result has 38.9 percent of original size [2022-12-14 15:06:02,392 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 12 case distinctions, treesize of input 758 treesize of output 1321 [2022-12-14 15:20:14,307 WARN L233 SmtUtils]: Spent 28.80s on a formula simplification that was a NOOP. DAG size: 980 (called from [L 800] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)