./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS --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 80f1df6d4bc7961b41bec7d16d328ef23e1639399b1fb3a18bcdda9891a98148 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 08:02:31,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 08:02:31,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 08:02:31,478 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 08:02:31,479 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 08:02:31,480 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 08:02:31,481 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 08:02:31,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 08:02:31,485 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 08:02:31,486 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 08:02:31,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 08:02:31,488 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 08:02:31,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 08:02:31,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 08:02:31,491 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 08:02:31,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 08:02:31,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 08:02:31,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 08:02:31,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 08:02:31,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 08:02:31,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 08:02:31,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 08:02:31,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 08:02:31,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 08:02:31,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 08:02:31,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 08:02:31,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 08:02:31,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 08:02:31,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 08:02:31,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 08:02:31,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 08:02:31,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 08:02:31,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 08:02:31,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 08:02:31,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 08:02:31,517 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 08:02:31,518 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 08:02:31,519 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 08:02:31,519 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 08:02:31,520 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 08:02:31,521 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 08:02:31,522 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 08:02:31,547 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 08:02:31,547 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 08:02:31,547 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 08:02:31,548 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 08:02:31,548 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 08:02:31,549 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 08:02:31,549 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 08:02:31,549 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 08:02:31,549 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 08:02:31,550 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 08:02:31,550 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 08:02:31,550 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 08:02:31,550 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 08:02:31,550 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 08:02:31,551 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 08:02:31,551 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 08:02:31,551 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 08:02:31,551 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 08:02:31,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 08:02:31,552 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 08:02:31,552 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 08:02:31,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 08:02:31,553 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 08:02:31,553 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 08:02:31,553 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 08:02:31,553 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 08:02:31,554 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 08:02:31,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 08:02:31,554 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 08:02:31,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 08:02:31,554 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 08:02:31,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 08:02:31,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:31,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 08:02:31,555 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 08:02:31,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 08:02:31,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 08:02:31,556 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 08:02:31,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 08:02:31,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 08:02:31,556 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 08:02:31,557 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_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80f1df6d4bc7961b41bec7d16d328ef23e1639399b1fb3a18bcdda9891a98148 [2022-11-19 08:02:31,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 08:02:31,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 08:02:31,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 08:02:31,862 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 08:02:31,864 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 08:02:31,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i [2022-11-19 08:02:31,964 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/data/c775b2f4b/6eb81ed77359401fb2a15193ab98e301/FLAG18fdbabc5 [2022-11-19 08:02:32,707 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 08:02:32,710 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i [2022-11-19 08:02:32,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/data/c775b2f4b/6eb81ed77359401fb2a15193ab98e301/FLAG18fdbabc5 [2022-11-19 08:02:32,863 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/data/c775b2f4b/6eb81ed77359401fb2a15193ab98e301 [2022-11-19 08:02:32,865 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 08:02:32,867 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 08:02:32,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:32,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 08:02:32,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 08:02:32,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:32" (1/1) ... [2022-11-19 08:02:32,876 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d783e99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:32, skipping insertion in model container [2022-11-19 08:02:32,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 08:02:32" (1/1) ... [2022-11-19 08:02:32,885 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 08:02:32,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 08:02:33,459 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i[33021,33034] [2022-11-19 08:02:33,607 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i[45234,45247] [2022-11-19 08:02:33,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:33,656 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 08:02:33,703 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i[33021,33034] [2022-11-19 08:02:33,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test8-2.i[45234,45247] [2022-11-19 08:02:33,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 08:02:33,829 INFO L208 MainTranslator]: Completed translation [2022-11-19 08:02:33,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33 WrapperNode [2022-11-19 08:02:33,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 08:02:33,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:33,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 08:02:33,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 08:02:33,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:33,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:33,952 INFO L138 Inliner]: procedures = 177, calls = 348, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 1147 [2022-11-19 08:02:33,953 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 08:02:33,954 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 08:02:33,954 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 08:02:33,954 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 08:02:33,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:33,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:33,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:33,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,056 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 08:02:34,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 08:02:34,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 08:02:34,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 08:02:34,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (1/1) ... [2022-11-19 08:02:34,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 08:02:34,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:02:34,118 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 08:02:34,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 08:02:34,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 08:02:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-19 08:02:34,175 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-19 08:02:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 08:02:34,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-19 08:02:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-19 08:02:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure test_int [2022-11-19 08:02:34,176 INFO L138 BoogieDeclarations]: Found implementation of procedure test_int [2022-11-19 08:02:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 08:02:34,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 08:02:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 08:02:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 08:02:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-11-19 08:02:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 08:02:34,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 08:02:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 08:02:34,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 08:02:34,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 08:02:34,553 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 08:02:34,555 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 08:02:36,755 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 08:02:37,367 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 08:02:37,368 INFO L300 CfgBuilder]: Removed 71 assume(true) statements. [2022-11-19 08:02:37,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:37 BoogieIcfgContainer [2022-11-19 08:02:37,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 08:02:37,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 08:02:37,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 08:02:37,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 08:02:37,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 08:02:32" (1/3) ... [2022-11-19 08:02:37,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32563efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:37, skipping insertion in model container [2022-11-19 08:02:37,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 08:02:33" (2/3) ... [2022-11-19 08:02:37,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32563efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 08:02:37, skipping insertion in model container [2022-11-19 08:02:37,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 08:02:37" (3/3) ... [2022-11-19 08:02:37,389 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test8-2.i [2022-11-19 08:02:37,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 08:02:37,417 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-19 08:02:37,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 08:02:37,517 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;@67ddf4f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 08:02:37,517 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-19 08:02:37,523 INFO L276 IsEmpty]: Start isEmpty. Operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 08:02:37,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-19 08:02:37,535 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:37,536 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:37,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:37,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:37,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1439031123, now seen corresponding path program 1 times [2022-11-19 08:02:37,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:37,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083051721] [2022-11-19 08:02:37,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:37,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:02:37,817 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:37,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083051721] [2022-11-19 08:02:37,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083051721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:37,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:37,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:02:37,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127968839] [2022-11-19 08:02:37,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:37,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 08:02:37,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:37,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 08:02:37,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 08:02:37,880 INFO L87 Difference]: Start difference. First operand has 162 states, 136 states have (on average 1.7941176470588236) internal successors, (244), 153 states have internal predecessors, (244), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:02:39,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:39,182 INFO L93 Difference]: Finished difference Result 323 states and 584 transitions. [2022-11-19 08:02:39,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 08:02:39,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-19 08:02:39,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:39,197 INFO L225 Difference]: With dead ends: 323 [2022-11-19 08:02:39,198 INFO L226 Difference]: Without dead ends: 146 [2022-11-19 08:02:39,202 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 [2022-11-19 08:02:39,205 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:39,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-19 08:02:39,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-11-19 08:02:39,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2022-11-19 08:02:39,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 121 states have (on average 1.2727272727272727) internal successors, (154), 137 states have internal predecessors, (154), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 08:02:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 194 transitions. [2022-11-19 08:02:39,263 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 194 transitions. Word has length 8 [2022-11-19 08:02:39,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:39,263 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 194 transitions. [2022-11-19 08:02:39,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:02:39,264 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 194 transitions. [2022-11-19 08:02:39,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-19 08:02:39,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:39,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:39,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 08:02:39,266 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:39,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:39,267 INFO L85 PathProgramCache]: Analyzing trace with hash 607279358, now seen corresponding path program 1 times [2022-11-19 08:02:39,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:39,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126510410] [2022-11-19 08:02:39,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:39,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:02:39,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:39,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126510410] [2022-11-19 08:02:39,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126510410] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:39,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:39,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 08:02:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494312458] [2022-11-19 08:02:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:39,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:02:39,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:39,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:02:39,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:02:39,730 INFO L87 Difference]: Start difference. First operand 146 states and 194 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:02:41,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:41,068 INFO L93 Difference]: Finished difference Result 293 states and 390 transitions. [2022-11-19 08:02:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:02:41,069 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-11-19 08:02:41,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:41,071 INFO L225 Difference]: With dead ends: 293 [2022-11-19 08:02:41,072 INFO L226 Difference]: Without dead ends: 202 [2022-11-19 08:02:41,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:02:41,074 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 60 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:41,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 480 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-19 08:02:41,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-19 08:02:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 148. [2022-11-19 08:02:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 123 states have (on average 1.2682926829268293) internal successors, (156), 139 states have internal predecessors, (156), 20 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (20), 6 states have call predecessors, (20), 20 states have call successors, (20) [2022-11-19 08:02:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-19 08:02:41,096 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 20 [2022-11-19 08:02:41,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:41,097 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-19 08:02:41,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 08:02:41,098 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-19 08:02:41,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-19 08:02:41,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:41,099 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, 1, 1, 1, 1] [2022-11-19 08:02:41,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 08:02:41,100 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:41,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:41,100 INFO L85 PathProgramCache]: Analyzing trace with hash 308617378, now seen corresponding path program 1 times [2022-11-19 08:02:41,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:41,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427709734] [2022-11-19 08:02:41,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:41,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:41,263 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:02:41,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1117945310] [2022-11-19 08:02:41,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:41,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:02:41,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:02:41,270 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:02:41,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 08:02:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:02:42,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 1597 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-19 08:02:42,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:02:42,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 08:02:42,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:02:42,278 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:02:42,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427709734] [2022-11-19 08:02:42,278 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:02:42,279 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117945310] [2022-11-19 08:02:42,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117945310] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:02:42,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:02:42,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 08:02:42,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409398473] [2022-11-19 08:02:42,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:02:42,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 08:02:42,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:02:42,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 08:02:42,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:42,282 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-11-19 08:02:43,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:02:43,668 INFO L93 Difference]: Finished difference Result 341 states and 444 transitions. [2022-11-19 08:02:43,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 08:02:43,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 32 [2022-11-19 08:02:43,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:02:43,671 INFO L225 Difference]: With dead ends: 341 [2022-11-19 08:02:43,671 INFO L226 Difference]: Without dead ends: 196 [2022-11-19 08:02:43,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 08:02:43,673 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 45 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-19 08:02:43,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 341 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-19 08:02:43,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-11-19 08:02:43,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 193. [2022-11-19 08:02:43,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 167 states have (on average 1.2275449101796407) internal successors, (205), 183 states have internal predecessors, (205), 21 states have call successors, (21), 3 states have call predecessors, (21), 3 states have return successors, (21), 7 states have call predecessors, (21), 21 states have call successors, (21) [2022-11-19 08:02:43,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 247 transitions. [2022-11-19 08:02:43,695 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 247 transitions. Word has length 32 [2022-11-19 08:02:43,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:02:43,696 INFO L495 AbstractCegarLoop]: Abstraction has 193 states and 247 transitions. [2022-11-19 08:02:43,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2022-11-19 08:02:43,696 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 247 transitions. [2022-11-19 08:02:43,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-19 08:02:43,698 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:02:43,698 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:02:43,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 08:02:43,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:02:43,909 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:02:43,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:02:43,909 INFO L85 PathProgramCache]: Analyzing trace with hash 922198994, now seen corresponding path program 1 times [2022-11-19 08:02:43,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:02:43,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508213708] [2022-11-19 08:02:43,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:43,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:02:44,003 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:02:44,004 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2027880002] [2022-11-19 08:02:44,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:02:44,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:02:44,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:02:44,006 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:02:44,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 08:03:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:29,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:03:29,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:03:29,226 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 08:03:29,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:03:29,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508213708] [2022-11-19 08:03:29,227 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:03:29,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027880002] [2022-11-19 08:03:29,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027880002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 08:03:29,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 08:03:29,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-19 08:03:29,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693331892] [2022-11-19 08:03:29,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 08:03:29,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 08:03:29,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 08:03:29,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 08:03:29,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-19 08:03:29,238 INFO L87 Difference]: Start difference. First operand 193 states and 247 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:03:31,400 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-11-19 08:03:31,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 08:03:31,513 INFO L93 Difference]: Finished difference Result 372 states and 482 transitions. [2022-11-19 08:03:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 08:03:31,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 45 [2022-11-19 08:03:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 08:03:31,520 INFO L225 Difference]: With dead ends: 372 [2022-11-19 08:03:31,520 INFO L226 Difference]: Without dead ends: 195 [2022-11-19 08:03:31,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 08:03:31,523 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 1 mSDsluCounter, 346 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-19 08:03:31,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 521 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-19 08:03:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2022-11-19 08:03:31,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2022-11-19 08:03:31,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 168 states have (on average 1.2321428571428572) internal successors, (207), 185 states have internal predecessors, (207), 21 states have call successors, (21), 3 states have call predecessors, (21), 4 states have return successors, (22), 7 states have call predecessors, (22), 21 states have call successors, (22) [2022-11-19 08:03:31,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 250 transitions. [2022-11-19 08:03:31,554 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 250 transitions. Word has length 45 [2022-11-19 08:03:31,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 08:03:31,555 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 250 transitions. [2022-11-19 08:03:31,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 08:03:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 250 transitions. [2022-11-19 08:03:31,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 08:03:31,559 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 08:03:31,559 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 08:03:31,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 08:03:31,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:03:31,760 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 08:03:31,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 08:03:31,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1894472968, now seen corresponding path program 1 times [2022-11-19 08:03:31,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 08:03:31,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161136225] [2022-11-19 08:03:31,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:31,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 08:03:31,834 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-19 08:03:31,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [684817756] [2022-11-19 08:03:31,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 08:03:31,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 08:03:31,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 08:03:31,837 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 08:03:31,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_38a1231c-9181-4473-9758-fbb1557f4be5/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-19 08:03:49,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 08:03:49,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 08:03:49,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 08:03:49,050 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 08:03:49,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 08:03:49,165 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 08:03:49,165 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 08:03:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161136225] [2022-11-19 08:03:49,166 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-11-19 08:03:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684817756] [2022-11-19 08:03:49,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684817756] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 08:03:49,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [770576607] [2022-11-19 08:03:49,190 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 08:03:49,190 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 08:03:49,195 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 08:03:49,202 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 08:03:49,202 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 08:03:49,303 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:03:49,310 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2022-11-19 08:03:49,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,341 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2022-11-19 08:03:49,341 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 27 treesize of output 37 [2022-11-19 08:03:49,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,358 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-11-19 08:03:49,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,371 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 22 [2022-11-19 08:03:49,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,448 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:03:49,448 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 8 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 52 treesize of output 53 [2022-11-19 08:03:49,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,508 INFO L321 Elim1Store]: treesize reduction 20, result has 48.7 percent of original size [2022-11-19 08:03:49,509 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 38 [2022-11-19 08:03:49,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,544 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:03:49,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,565 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2022-11-19 08:03:49,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:49,621 INFO L321 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2022-11-19 08:03:49,622 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 32 treesize of output 49 [2022-11-19 08:03:50,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,332 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,354 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 9897009 treesize of output 5376288 [2022-11-19 08:03:50,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,406 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,421 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 29 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 8458577 treesize of output 4759834 [2022-11-19 08:03:50,467 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:03:50,489 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 19 [2022-11-19 08:03:50,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,574 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,612 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:03:50,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,688 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:03:50,757 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:03:50,774 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-11-19 08:03:50,859 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 10 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:03:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,954 INFO L321 Elim1Store]: treesize reduction 90, result has 33.8 percent of original size [2022-11-19 08:03:50,955 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 85 [2022-11-19 08:03:50,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:50,985 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 13 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 44 [2022-11-19 08:03:51,020 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 9 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 46 [2022-11-19 08:03:51,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,089 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458592 treesize of output 4759837 [2022-11-19 08:03:51,335 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:03:51,339 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 [2022-11-19 08:03:51,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-19 08:03:51,397 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:03:51,398 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 54 [2022-11-19 08:03:51,433 INFO L321 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2022-11-19 08:03:51,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 52 [2022-11-19 08:03:51,465 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-19 08:03:51,465 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 43 treesize of output 46 [2022-11-19 08:03:51,514 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:03:51,520 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 10 [2022-11-19 08:03:51,526 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-11-19 08:03:51,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,633 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 08:03:51,683 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:03:51,705 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:03:51,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 08:03:51,968 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 29 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 8458573 treesize of output 4759755 [2022-11-19 08:03:51,992 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 42 [2022-11-19 08:03:52,009 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 16 [2022-11-19 08:03:53,783 INFO L217 Elim1Store]: Index analysis took 1436 ms [2022-11-19 08:03:58,578 INFO L321 Elim1Store]: treesize reduction 190, result has 18.1 percent of original size [2022-11-19 08:03:58,579 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 4 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 22 case distinctions, treesize of input 9519777 treesize of output 9519796 [2022-11-19 08:03:59,655 INFO L217 Elim1Store]: Index analysis took 851 ms [2022-11-19 08:04:00,431 INFO L321 Elim1Store]: treesize reduction 87, result has 5.4 percent of original size [2022-11-19 08:04:00,432 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 9519772 treesize of output 9519776 [2022-11-19 08:06:33,378 WARN L233 SmtUtils]: Spent 2.55m on a formula simplification. DAG size of input: 175 DAG size of output: 92 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:06:33,379 INFO L321 Elim1Store]: treesize reduction 1193, result has 25.3 percent of original size [2022-11-19 08:06:33,380 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 5 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 9 new quantified variables, introduced 13 case distinctions, treesize of input 9890 treesize of output 6802 [2022-11-19 08:06:46,919 WARN L233 SmtUtils]: Spent 13.27s on a formula simplification. DAG size of input: 80 DAG size of output: 13 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:06:46,920 INFO L321 Elim1Store]: treesize reduction 252, result has 6.7 percent of original size [2022-11-19 08:06:46,921 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 11 case distinctions, treesize of input 10021 treesize of output 9263 [2022-11-19 08:06:47,306 INFO L217 Elim1Store]: Index analysis took 122 ms [2022-11-19 08:07:54,252 WARN L233 SmtUtils]: Spent 1.12m on a formula simplification. DAG size of input: 91 DAG size of output: 46 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:07:54,253 INFO L321 Elim1Store]: treesize reduction 338, result has 31.4 percent of original size [2022-11-19 08:07:54,253 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 4 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 10438 treesize of output 9115 [2022-11-19 08:08:01,445 INFO L217 Elim1Store]: Index analysis took 5305 ms [2022-11-19 08:11:54,975 WARN L233 SmtUtils]: Spent 3.86m on a formula simplification. DAG size of input: 408 DAG size of output: 225 (called from [L 318] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-11-19 08:11:54,976 INFO L321 Elim1Store]: treesize reduction 11269, result has 26.7 percent of original size [2022-11-19 08:11:54,977 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 8 stores, 0 select indices, 0 select index equivalence classes, 5 disjoint index pairs (out of 0 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 9192 treesize of output 12130